/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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:07:39,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:07:39,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:07:39,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:07:39,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:07:39,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:07:39,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:07:39,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:07:39,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:07:39,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:07:39,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:07:39,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:07:39,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:07:39,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:07:39,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:07:39,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:07:39,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:07:39,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:07:39,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:07:39,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:07:39,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:07:39,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:07:39,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:07:39,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:07:39,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:07:39,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:07:39,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:07:39,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:07:39,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:07:39,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:07:39,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:07:39,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:07:39,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:07:39,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:07:39,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:07:39,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:07:39,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:07:39,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:07:39,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:07:39,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:07:39,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:07:39,948 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 01:07:39,975 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:07:39,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:07:39,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:07:39,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:07:39,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:07:39,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:07:39,976 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:07:39,976 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:07:39,976 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:07:39,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:07:39,980 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:07:39,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:07:39,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:07:39,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:07:39,980 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:07:39,980 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:07:39,980 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:07:39,981 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:07:39,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:07:39,981 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:07:39,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:07:39,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:07:39,982 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:07:39,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:07:39,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:07:39,983 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:07:39,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:07:39,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:07:39,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:07:39,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:07:40,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:07:40,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:07:40,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:07:40,188 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:07:40,189 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:07:40,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2023-04-03 01:07:41,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:07:41,584 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:07:41,585 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2023-04-03 01:07:41,595 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0bd5165/d98b1b01f65942569706380f9c1a2053/FLAG70fb352a9 [2023-04-03 01:07:41,619 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0bd5165/d98b1b01f65942569706380f9c1a2053 [2023-04-03 01:07:41,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:07:41,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:07:41,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:07:41,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:07:41,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:07:41,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:41,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bca8423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41, skipping insertion in model container [2023-04-03 01:07:41,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:41,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:07:41,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:07:41,829 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_product58.cil.c[11718,11731] [2023-04-03 01:07:41,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:07:41,877 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:07:41,920 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_product58.cil.c[11718,11731] [2023-04-03 01:07:41,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:07:41,951 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:07:41,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41 WrapperNode [2023-04-03 01:07:41,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:07:41,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:07:41,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:07:41,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:07:41,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:41,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:41,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:41,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:41,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:42,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:42,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:42,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:42,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:07:42,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:07:42,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:07:42,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:07:42,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (1/1) ... [2023-04-03 01:07:42,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:07:42,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:42,047 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 01:07:42,062 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 01:07:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:07:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:07:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:07:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:07:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:07:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:07:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:07:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:07:42,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 01:07:42,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:07:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-03 01:07:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:07:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:07:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:07:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:07:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:07:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:07:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:07:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:07:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:07:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:07:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:07:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:07:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:07:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:07:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:07:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:07:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:07:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:07:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:07:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:07:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:07:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:07:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:07:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:07:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:07:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:07:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:07:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:07:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-03 01:07:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:07:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:07:42,272 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:07:42,273 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:07:42,807 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:07:42,891 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:07:42,891 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:07:42,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:42 BoogieIcfgContainer [2023-04-03 01:07:42,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:07:42,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:07:42,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:07:42,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:07:42,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:07:41" (1/3) ... [2023-04-03 01:07:42,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf39a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:42, skipping insertion in model container [2023-04-03 01:07:42,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:07:41" (2/3) ... [2023-04-03 01:07:42,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf39a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:07:42, skipping insertion in model container [2023-04-03 01:07:42,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:07:42" (3/3) ... [2023-04-03 01:07:42,901 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2023-04-03 01:07:42,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:07:42,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:07:42,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:07:42,964 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;@4a754d55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:07:42,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:07:42,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 72 states have (on average 1.25) internal successors, (90), 86 states have internal predecessors, (90), 49 states have call successors, (49), 32 states have call predecessors, (49), 32 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-03 01:07:42,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:07:42,974 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:42,975 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 01:07:42,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:42,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:42,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1348255991, now seen corresponding path program 1 times [2023-04-03 01:07:42,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:42,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093320133] [2023-04-03 01:07:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:42,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:43,132 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 01:07:43,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:43,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093320133] [2023-04-03 01:07:43,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093320133] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:43,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:43,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:07:43,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031737797] [2023-04-03 01:07:43,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:43,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:07:43,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:43,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:07:43,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:07:43,159 INFO L87 Difference]: Start difference. First operand has 156 states, 72 states have (on average 1.25) internal successors, (90), 86 states have internal predecessors, (90), 49 states have call successors, (49), 32 states have call predecessors, (49), 32 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) 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 01:07:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:43,205 INFO L93 Difference]: Finished difference Result 245 states and 290 transitions. [2023-04-03 01:07:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:07:43,207 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 01:07:43,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:43,213 INFO L225 Difference]: With dead ends: 245 [2023-04-03 01:07:43,213 INFO L226 Difference]: Without dead ends: 123 [2023-04-03 01:07:43,216 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 01:07:43,220 INFO L413 NwaCegarLoop]: 130 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, 130 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:43,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:07:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-04-03 01:07:43,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-04-03 01:07:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 74 states have internal predecessors, (76), 34 states have call successors, (34), 30 states have call predecessors, (34), 25 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-03 01:07:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2023-04-03 01:07:43,256 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 42 [2023-04-03 01:07:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:43,257 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2023-04-03 01:07:43,257 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 01:07:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2023-04-03 01:07:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:07:43,259 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:43,259 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 01:07:43,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:07:43,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:43,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:43,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1852574106, now seen corresponding path program 1 times [2023-04-03 01:07:43,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:43,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294221759] [2023-04-03 01:07:43,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:43,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:43,391 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 01:07:43,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:43,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294221759] [2023-04-03 01:07:43,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294221759] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:43,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:43,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:07:43,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701285295] [2023-04-03 01:07:43,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:43,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:07:43,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:43,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:07:43,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:07:43,394 INFO L87 Difference]: Start difference. First operand 123 states and 139 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 01:07:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:43,455 INFO L93 Difference]: Finished difference Result 199 states and 224 transitions. [2023-04-03 01:07:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:07:43,456 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 01:07:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:43,458 INFO L225 Difference]: With dead ends: 199 [2023-04-03 01:07:43,458 INFO L226 Difference]: Without dead ends: 115 [2023-04-03 01:07:43,459 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 01:07:43,460 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:43,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 207 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:07:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-04-03 01:07:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-04-03 01:07:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 58 states have (on average 1.206896551724138) internal successors, (70), 69 states have internal predecessors, (70), 31 states have call successors, (31), 29 states have call predecessors, (31), 25 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-03 01:07:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2023-04-03 01:07:43,473 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 43 [2023-04-03 01:07:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:43,473 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2023-04-03 01:07:43,473 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 01:07:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2023-04-03 01:07:43,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 01:07:43,475 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:43,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:43,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:07:43,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:43,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:43,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1546998899, now seen corresponding path program 1 times [2023-04-03 01:07:43,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:43,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017385405] [2023-04-03 01:07:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:43,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:43,657 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 01:07:43,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:43,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017385405] [2023-04-03 01:07:43,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017385405] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:43,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:43,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:43,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086522368] [2023-04-03 01:07:43,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:43,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:43,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:43,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:43,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:43,659 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 01:07:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:43,873 INFO L93 Difference]: Finished difference Result 208 states and 235 transitions. [2023-04-03 01:07:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 01:07:43,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 46 [2023-04-03 01:07:43,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:43,888 INFO L225 Difference]: With dead ends: 208 [2023-04-03 01:07:43,888 INFO L226 Difference]: Without dead ends: 115 [2023-04-03 01:07:43,889 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 01:07:43,890 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 117 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:43,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 308 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:43,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-04-03 01:07:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-04-03 01:07:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 68 states have internal predecessors, (69), 31 states have call successors, (31), 29 states have call predecessors, (31), 25 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-03 01:07:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2023-04-03 01:07:43,902 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 46 [2023-04-03 01:07:43,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:43,902 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2023-04-03 01:07:43,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 01:07:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2023-04-03 01:07:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-03 01:07:43,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:43,904 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] [2023-04-03 01:07:43,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:07:43,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:43,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2092871101, now seen corresponding path program 1 times [2023-04-03 01:07:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:43,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657748961] [2023-04-03 01:07:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:43,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:44,068 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 01:07:44,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:44,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657748961] [2023-04-03 01:07:44,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657748961] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:44,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:44,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 01:07:44,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585470185] [2023-04-03 01:07:44,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:44,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 01:07:44,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:44,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 01:07:44,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 01:07:44,071 INFO L87 Difference]: Start difference. First operand 115 states and 127 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-03 01:07:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:44,312 INFO L93 Difference]: Finished difference Result 298 states and 346 transitions. [2023-04-03 01:07:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:07:44,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 59 [2023-04-03 01:07:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:44,314 INFO L225 Difference]: With dead ends: 298 [2023-04-03 01:07:44,314 INFO L226 Difference]: Without dead ends: 205 [2023-04-03 01:07:44,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-04-03 01:07:44,315 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 163 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:44,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 152 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-04-03 01:07:44,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 188. [2023-04-03 01:07:44,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 100 states have (on average 1.16) internal successors, (116), 110 states have internal predecessors, (116), 43 states have call successors, (43), 42 states have call predecessors, (43), 44 states have return successors, (47), 42 states have call predecessors, (47), 39 states have call successors, (47) [2023-04-03 01:07:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 206 transitions. [2023-04-03 01:07:44,334 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 206 transitions. Word has length 59 [2023-04-03 01:07:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:44,334 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 206 transitions. [2023-04-03 01:07:44,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-03 01:07:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 206 transitions. [2023-04-03 01:07:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-03 01:07:44,335 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:44,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:07:44,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:07:44,336 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:44,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1922966647, now seen corresponding path program 1 times [2023-04-03 01:07:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:44,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661852492] [2023-04-03 01:07:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:44,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:44,509 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 01:07:44,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:44,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661852492] [2023-04-03 01:07:44,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661852492] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:44,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:44,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:07:44,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654112901] [2023-04-03 01:07:44,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:44,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:07:44,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:44,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:07:44,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:07:44,514 INFO L87 Difference]: Start difference. First operand 188 states and 206 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-03 01:07:44,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:44,653 INFO L93 Difference]: Finished difference Result 463 states and 524 transitions. [2023-04-03 01:07:44,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:07:44,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 68 [2023-04-03 01:07:44,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:44,658 INFO L225 Difference]: With dead ends: 463 [2023-04-03 01:07:44,658 INFO L226 Difference]: Without dead ends: 297 [2023-04-03 01:07:44,659 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 01:07:44,663 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 69 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:44,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 473 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:07:44,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-04-03 01:07:44,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 285. [2023-04-03 01:07:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 156 states have (on average 1.1602564102564104) internal successors, (181), 171 states have internal predecessors, (181), 62 states have call successors, (62), 61 states have call predecessors, (62), 66 states have return successors, (73), 63 states have call predecessors, (73), 58 states have call successors, (73) [2023-04-03 01:07:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 316 transitions. [2023-04-03 01:07:44,708 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 316 transitions. Word has length 68 [2023-04-03 01:07:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:44,709 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 316 transitions. [2023-04-03 01:07:44,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-03 01:07:44,710 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 316 transitions. [2023-04-03 01:07:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-03 01:07:44,716 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:44,716 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] [2023-04-03 01:07:44,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:07:44,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:44,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:44,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1989446858, now seen corresponding path program 1 times [2023-04-03 01:07:44,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960906217] [2023-04-03 01:07:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:44,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:44,880 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 01:07:44,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:44,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960906217] [2023-04-03 01:07:44,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960906217] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:44,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:44,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:07:44,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399332977] [2023-04-03 01:07:44,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:44,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:07:44,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:44,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:07:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:07:44,884 INFO L87 Difference]: Start difference. First operand 285 states and 316 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-03 01:07:45,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:45,169 INFO L93 Difference]: Finished difference Result 315 states and 361 transitions. [2023-04-03 01:07:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 01:07:45,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 71 [2023-04-03 01:07:45,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:45,172 INFO L225 Difference]: With dead ends: 315 [2023-04-03 01:07:45,172 INFO L226 Difference]: Without dead ends: 312 [2023-04-03 01:07:45,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-04-03 01:07:45,176 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 130 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:45,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 256 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:45,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-04-03 01:07:45,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 285. [2023-04-03 01:07:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 171 states have internal predecessors, (180), 62 states have call successors, (62), 61 states have call predecessors, (62), 66 states have return successors, (73), 63 states have call predecessors, (73), 58 states have call successors, (73) [2023-04-03 01:07:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 315 transitions. [2023-04-03 01:07:45,214 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 315 transitions. Word has length 71 [2023-04-03 01:07:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:45,215 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 315 transitions. [2023-04-03 01:07:45,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-03 01:07:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 315 transitions. [2023-04-03 01:07:45,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-03 01:07:45,217 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:45,218 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] [2023-04-03 01:07:45,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 01:07:45,218 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:45,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1528273924, now seen corresponding path program 1 times [2023-04-03 01:07:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759638498] [2023-04-03 01:07:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:45,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:45,484 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 01:07:45,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:45,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759638498] [2023-04-03 01:07:45,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759638498] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:45,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:07:45,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-03 01:07:45,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926028055] [2023-04-03 01:07:45,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:45,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:07:45,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:07:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-03 01:07:45,485 INFO L87 Difference]: Start difference. First operand 285 states and 315 transitions. Second operand has 14 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (16), 7 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-03 01:07:45,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:45,739 INFO L93 Difference]: Finished difference Result 520 states and 600 transitions. [2023-04-03 01:07:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 01:07:45,740 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (16), 7 states have call predecessors, (16), 3 states have call successors, (16) Word has length 84 [2023-04-03 01:07:45,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:45,742 INFO L225 Difference]: With dead ends: 520 [2023-04-03 01:07:45,742 INFO L226 Difference]: Without dead ends: 354 [2023-04-03 01:07:45,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-04-03 01:07:45,743 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 180 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:45,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1020 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:07:45,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-04-03 01:07:45,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 344. [2023-04-03 01:07:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 192 states have (on average 1.15625) internal successors, (222), 210 states have internal predecessors, (222), 74 states have call successors, (74), 73 states have call predecessors, (74), 77 states have return successors, (95), 75 states have call predecessors, (95), 70 states have call successors, (95) [2023-04-03 01:07:45,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 391 transitions. [2023-04-03 01:07:45,766 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 391 transitions. Word has length 84 [2023-04-03 01:07:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:45,767 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 391 transitions. [2023-04-03 01:07:45,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (16), 7 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-03 01:07:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 391 transitions. [2023-04-03 01:07:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-03 01:07:45,769 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:45,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:45,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 01:07:45,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:45,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1890505646, now seen corresponding path program 1 times [2023-04-03 01:07:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260369908] [2023-04-03 01:07:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:45,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:07:46,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:46,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260369908] [2023-04-03 01:07:46,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260369908] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:46,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415843328] [2023-04-03 01:07:46,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:46,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:46,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:46,111 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 01:07:46,112 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 01:07:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:46,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:07:46,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:46,698 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-03 01:07:46,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:07:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-03 01:07:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415843328] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:07:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1513580001] [2023-04-03 01:07:47,451 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2023-04-03 01:07:47,451 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:07:47,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:07:47,457 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:07:47,458 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:07:47,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:07:47,601 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:07:47,742 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:07:47,753 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:07:49,343 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:07:49,348 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:07:49,536 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:07:49,541 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:07:49,654 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:07:49,757 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:07:49,830 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:07:49,834 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:07:49,868 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-04-03 01:07:49,886 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-04-03 01:07:49,889 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-04-03 01:07:49,890 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:07:49,891 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:07:49,929 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:07:49,932 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:07:49,934 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:07:49,935 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:07:49,964 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:07:49,966 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:07:49,967 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:07:49,969 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:07:49,971 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:07:49,972 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:07:53,426 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6473#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:07:53,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:07:53,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:07:53,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 36 [2023-04-03 01:07:53,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199529253] [2023-04-03 01:07:53,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:07:53,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-03 01:07:53,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-03 01:07:53,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=658, Invalid=7714, Unknown=0, NotChecked=0, Total=8372 [2023-04-03 01:07:53,432 INFO L87 Difference]: Start difference. First operand 344 states and 391 transitions. Second operand has 36 states, 25 states have (on average 5.44) internal successors, (136), 29 states have internal predecessors, (136), 11 states have call successors, (62), 12 states have call predecessors, (62), 18 states have return successors, (54), 18 states have call predecessors, (54), 11 states have call successors, (54) [2023-04-03 01:07:56,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:56,314 INFO L93 Difference]: Finished difference Result 2046 states and 2960 transitions. [2023-04-03 01:07:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-04-03 01:07:56,314 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 25 states have (on average 5.44) internal successors, (136), 29 states have internal predecessors, (136), 11 states have call successors, (62), 12 states have call predecessors, (62), 18 states have return successors, (54), 18 states have call predecessors, (54), 11 states have call successors, (54) Word has length 130 [2023-04-03 01:07:56,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:56,371 INFO L225 Difference]: With dead ends: 2046 [2023-04-03 01:07:56,371 INFO L226 Difference]: Without dead ends: 1815 [2023-04-03 01:07:56,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 305 SyntacticMatches, 18 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8860 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1701, Invalid=18321, Unknown=0, NotChecked=0, Total=20022 [2023-04-03 01:07:56,377 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1687 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 1539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 5462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1539 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:56,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 1481 Invalid, 5462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1539 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 01:07:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2023-04-03 01:07:56,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1074. [2023-04-03 01:07:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 600 states have (on average 1.1483333333333334) internal successors, (689), 657 states have internal predecessors, (689), 226 states have call successors, (226), 219 states have call predecessors, (226), 247 states have return successors, (328), 240 states have call predecessors, (328), 222 states have call successors, (328) [2023-04-03 01:07:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1243 transitions. [2023-04-03 01:07:56,504 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1243 transitions. Word has length 130 [2023-04-03 01:07:56,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:56,506 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1243 transitions. [2023-04-03 01:07:56,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 25 states have (on average 5.44) internal successors, (136), 29 states have internal predecessors, (136), 11 states have call successors, (62), 12 states have call predecessors, (62), 18 states have return successors, (54), 18 states have call predecessors, (54), 11 states have call successors, (54) [2023-04-03 01:07:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1243 transitions. [2023-04-03 01:07:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-04-03 01:07:56,508 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:56,508 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] [2023-04-03 01:07:56,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-03 01:07:56,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:56,714 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:56,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:56,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2027051899, now seen corresponding path program 1 times [2023-04-03 01:07:56,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:56,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367172310] [2023-04-03 01:07:56,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:56,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-03 01:07:57,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:57,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367172310] [2023-04-03 01:07:57,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367172310] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:57,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932433662] [2023-04-03 01:07:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:57,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:57,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:57,090 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 01:07:57,118 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 01:07:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:57,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-03 01:07:57,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:07:57,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:57,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932433662] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:57,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:57,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 22 [2023-04-03 01:07:57,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472624898] [2023-04-03 01:07:57,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:57,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:07:57,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:57,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:07:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-04-03 01:07:57,473 INFO L87 Difference]: Start difference. First operand 1074 states and 1243 transitions. Second operand has 14 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 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 01:07:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:07:58,436 INFO L93 Difference]: Finished difference Result 2352 states and 2803 transitions. [2023-04-03 01:07:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-03 01:07:58,436 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 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 127 [2023-04-03 01:07:58,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:07:58,441 INFO L225 Difference]: With dead ends: 2352 [2023-04-03 01:07:58,441 INFO L226 Difference]: Without dead ends: 1298 [2023-04-03 01:07:58,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 125 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 01:07:58,444 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 209 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 01:07:58,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 325 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 01:07:58,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2023-04-03 01:07:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1283. [2023-04-03 01:07:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 732 states have (on average 1.139344262295082) internal successors, (834), 794 states have internal predecessors, (834), 273 states have call successors, (273), 270 states have call predecessors, (273), 277 states have return successors, (381), 275 states have call predecessors, (381), 269 states have call successors, (381) [2023-04-03 01:07:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1488 transitions. [2023-04-03 01:07:58,587 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1488 transitions. Word has length 127 [2023-04-03 01:07:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:07:58,587 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1488 transitions. [2023-04-03 01:07:58,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 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 01:07:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1488 transitions. [2023-04-03 01:07:58,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-03 01:07:58,590 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:07:58,590 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, 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 01:07:58,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 01:07:58,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-04-03 01:07:58,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:07:58,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:07:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1755631144, now seen corresponding path program 2 times [2023-04-03 01:07:58,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:07:58,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049299056] [2023-04-03 01:07:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:07:58,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:07:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:07:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 35 proven. 18 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-03 01:07:59,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:07:59,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049299056] [2023-04-03 01:07:59,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049299056] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:07:59,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162673207] [2023-04-03 01:07:59,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-03 01:07:59,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:07:59,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:07:59,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:07:59,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 01:07:59,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-04-03 01:07:59,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-03 01:07:59,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 43 conjunts are in the unsatisfiable core [2023-04-03 01:07:59,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:07:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:07:59,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:07:59,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162673207] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:07:59,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:07:59,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2023-04-03 01:07:59,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529671992] [2023-04-03 01:07:59,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:07:59,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 01:07:59,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:07:59,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 01:07:59,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2023-04-03 01:07:59,771 INFO L87 Difference]: Start difference. First operand 1283 states and 1488 transitions. Second operand has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2023-04-03 01:08:00,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:00,454 INFO L93 Difference]: Finished difference Result 2567 states and 2966 transitions. [2023-04-03 01:08:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-03 01:08:00,455 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) Word has length 176 [2023-04-03 01:08:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:00,460 INFO L225 Difference]: With dead ends: 2567 [2023-04-03 01:08:00,460 INFO L226 Difference]: Without dead ends: 1281 [2023-04-03 01:08:00,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2023-04-03 01:08:00,463 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 105 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:00,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 784 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 01:08:00,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2023-04-03 01:08:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1257. [2023-04-03 01:08:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 718 states have (on average 1.126740947075209) internal successors, (809), 776 states have internal predecessors, (809), 268 states have call successors, (268), 264 states have call predecessors, (268), 270 states have return successors, (347), 268 states have call predecessors, (347), 264 states have call successors, (347) [2023-04-03 01:08:00,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1424 transitions. [2023-04-03 01:08:00,570 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1424 transitions. Word has length 176 [2023-04-03 01:08:00,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:00,570 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1424 transitions. [2023-04-03 01:08:00,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2023-04-03 01:08:00,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1424 transitions. [2023-04-03 01:08:00,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-04-03 01:08:00,573 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:08:00,573 INFO L195 NwaCegarLoop]: trace histogram [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 01:08:00,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-03 01:08:00,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:00,779 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:08:00,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:08:00,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1754354633, now seen corresponding path program 1 times [2023-04-03 01:08:00,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:08:00,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936026468] [2023-04-03 01:08:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:00,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:08:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 64 proven. 35 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-03 01:08:01,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:08:01,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936026468] [2023-04-03 01:08:01,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936026468] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:08:01,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16011710] [2023-04-03 01:08:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:08:01,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:01,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:08:01,351 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 01:08:01,353 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 01:08:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:08:01,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 58 conjunts are in the unsatisfiable core [2023-04-03 01:08:01,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:08:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 14 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-04-03 01:08:01,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:08:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 78 proven. 8 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-04-03 01:08:03,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16011710] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:08:03,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58199942] [2023-04-03 01:08:03,186 INFO L159 IcfgInterpreter]: Started Sifa with 108 locations of interest [2023-04-03 01:08:03,186 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:08:03,186 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:08:03,186 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:08:03,187 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:08:03,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:08:03,272 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:08:03,344 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:08:03,350 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:08:04,267 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:08:04,270 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:08:04,374 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:08:04,377 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-04-03 01:08:04,487 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2023-04-03 01:08:04,577 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:08:04,620 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:08:04,623 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:08:04,651 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-04-03 01:08:04,666 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-04-03 01:08:04,669 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__lowWaterSensor with input of size 24 for LOIs [2023-04-03 01:08:04,670 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:08:04,671 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterLevel with input of size 23 for LOIs [2023-04-03 01:08:04,702 INFO L197 IcfgInterpreter]: Interpreting procedure isLowWaterSensorDry with input of size 23 for LOIs [2023-04-03 01:08:04,705 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2023-04-03 01:08:04,707 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:08:04,708 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:08:04,709 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:08:04,732 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:08:04,733 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:08:04,735 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:08:04,736 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:08:04,738 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:08:04,739 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:08:09,493 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24233#(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 01:08:09,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:08:09,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:08:09,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 18] total 49 [2023-04-03 01:08:09,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61360653] [2023-04-03 01:08:09,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:08:09,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-04-03 01:08:09,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:08:09,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-04-03 01:08:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=778, Invalid=10352, Unknown=0, NotChecked=0, Total=11130 [2023-04-03 01:08:09,498 INFO L87 Difference]: Start difference. First operand 1257 states and 1424 transitions. Second operand has 49 states, 35 states have (on average 5.2) internal successors, (182), 36 states have internal predecessors, (182), 13 states have call successors, (74), 9 states have call predecessors, (74), 25 states have return successors, (76), 25 states have call predecessors, (76), 13 states have call successors, (76) [2023-04-03 01:08:10,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:08:10,737 INFO L93 Difference]: Finished difference Result 1530 states and 1760 transitions. [2023-04-03 01:08:10,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-03 01:08:10,737 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 35 states have (on average 5.2) internal successors, (182), 36 states have internal predecessors, (182), 13 states have call successors, (74), 9 states have call predecessors, (74), 25 states have return successors, (76), 25 states have call predecessors, (76), 13 states have call successors, (76) Word has length 227 [2023-04-03 01:08:10,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:08:10,739 INFO L225 Difference]: With dead ends: 1530 [2023-04-03 01:08:10,739 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 01:08:10,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 574 SyntacticMatches, 34 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9360 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1266, Invalid=15246, Unknown=0, NotChecked=0, Total=16512 [2023-04-03 01:08:10,762 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 607 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 01:08:10,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 694 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 01:08:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 01:08:10,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 01:08:10,762 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 01:08:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 01:08:10,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2023-04-03 01:08:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:08:10,763 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 01:08:10,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 35 states have (on average 5.2) internal successors, (182), 36 states have internal predecessors, (182), 13 states have call successors, (74), 9 states have call predecessors, (74), 25 states have return successors, (76), 25 states have call predecessors, (76), 13 states have call successors, (76) [2023-04-03 01:08:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 01:08:10,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 01:08:10,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:08:10,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 01:08:10,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:08:10,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 01:08:13,365 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 01:08:13,365 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 01:08:13,365 INFO L899 garLoopResultBuilder]: For program point L127-2(lines 127 148) no Hoare annotation was computed. [2023-04-03 01:08:13,365 INFO L899 garLoopResultBuilder]: For program point L149(lines 126 150) no Hoare annotation was computed. [2023-04-03 01:08:13,365 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 102 157) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L184-2(lines 184 209) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L210(lines 183 211) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 158 217) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 691 699) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 691 699) the Hoare annotation is: true [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification4_spec__1EXIT(lines 419 443) no Hoare annotation was computed. [2023-04-03 01:08:13,366 INFO L895 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,366 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L429-1(line 429) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 419 443) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 419 443) the Hoare annotation is: true [2023-04-03 01:08:13,367 INFO L902 garLoopResultBuilder]: At program point L425(line 425) the Hoare annotation is: true [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L425-1(line 425) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 642 664) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point L654(line 654) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~4 1))) [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point L654-1(line 654) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~4 1))) [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 659) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L652-1(lines 652 659) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L899 garLoopResultBuilder]: For program point L650(line 650) no Hoare annotation was computed. [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 642 664) 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)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point L649(line 649) 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)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point L648(line 648) 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)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,367 INFO L895 garLoopResultBuilder]: At program point L648-1(line 648) 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)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L609(line 609) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L608(line 608) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 597 620) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L607(line 607) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L606(line 606) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L604(line 604) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 597 620) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L603(line 603) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 597 620) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L615(line 615) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L614(line 614) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L613(line 613) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L612(line 612) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L611(line 611) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2023-04-03 01:08:13,368 INFO L902 garLoopResultBuilder]: At program point L906(line 906) the Hoare annotation is: true [2023-04-03 01:08:13,368 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 899 917) the Hoare annotation is: true [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point L906-1(line 906) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 899 917) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 677 683) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 677 683) the Hoare annotation is: true [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 369 414) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 540 553) the Hoare annotation is: true [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 540 553) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 765 789) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) (not .cse4) .cse0 .cse2 (< ~waterLevel~0 2)) (or .cse1 .cse2 .cse3 .cse4))) [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 765 789) no Hoare annotation was computed. [2023-04-03 01:08:13,369 INFO L895 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0 (< ~waterLevel~0 2)) (or (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,369 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 765 789) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) .cse0 (< 1 ~waterLevel~0)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (< ~waterLevel~0 2)))) [2023-04-03 01:08:13,369 INFO L895 garLoopResultBuilder]: At program point L775(line 775) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse2 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 processEnvironment_~tmp~6)) .cse3) (or .cse0 .cse2 .cse1 .cse3))) [2023-04-03 01:08:13,369 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L771(line 771) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< ~waterLevel~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< 1 ~waterLevel~0))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 .cse3) (or .cse0 .cse2 .cse1 .cse3))) [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point L771-1(line 771) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L985(lines 936 986) the Hoare annotation is: (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 927 992) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L975-2(lines 967 980) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point L938(lines 937 984) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 927 992) 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)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L969(line 969) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point L967(lines 967 980) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L899 garLoopResultBuilder]: For program point L957-1(lines 957 963) no Hoare annotation was computed. [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L982(lines 937 984) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-04-03 01:08:13,370 INFO L895 garLoopResultBuilder]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (<= ~waterLevel~0 2)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 (<= 1 ~waterLevel~0)))) [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 927 992) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 790 797) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 790 797) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 554 562) the Hoare annotation is: true [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 554 562) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 508 530) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 508 530) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 799 815) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:08:13,371 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 799 815) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point L810-1(lines 799 815) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 812) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L895 garLoopResultBuilder]: At program point L804(line 804) the Hoare annotation is: (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< ~waterLevel~0 2)) [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point L804-1(line 804) no Hoare annotation was computed. [2023-04-03 01:08:13,371 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 531 539) the Hoare annotation is: true [2023-04-03 01:08:13,371 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 531 539) no Hoare annotation was computed. [2023-04-03 01:08:13,372 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 880 898) no Hoare annotation was computed. [2023-04-03 01:08:13,372 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 880 898) the Hoare annotation is: true [2023-04-03 01:08:13,372 INFO L902 garLoopResultBuilder]: At program point L887(line 887) the Hoare annotation is: true [2023-04-03 01:08:13,372 INFO L899 garLoopResultBuilder]: For program point L887-1(line 887) no Hoare annotation was computed. [2023-04-03 01:08:13,372 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 499 507) the Hoare annotation is: true [2023-04-03 01:08:13,372 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 499 507) no Hoare annotation was computed. [2023-04-03 01:08:13,372 INFO L895 garLoopResultBuilder]: At program point L720(line 720) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) .cse4 (< |old(~waterLevel~0)| 1) (and .cse1 .cse3) .cse0)))) [2023-04-03 01:08:13,372 INFO L895 garLoopResultBuilder]: At program point L718(lines 718 724) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= 1 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not .cse7)) (.cse1 (and (<= 2 ~waterLevel~0) .cse7 .cse6)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse4 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 (and .cse3 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0)) .cse4) (or (< 1 |old(~waterLevel~0)|) .cse5 (< |old(~waterLevel~0)| 1) (and .cse3 .cse6) .cse0) (or .cse5 .cse0 .cse1 .cse2 .cse4)))) [2023-04-03 01:08:13,372 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2023-04-03 01:08:13,372 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 707 730) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2023-04-03 01:08:13,372 INFO L895 garLoopResultBuilder]: At program point L713(line 713) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or (< 1 |old(~waterLevel~0)|) .cse3 (< |old(~waterLevel~0)| 1) .cse0) (or .cse3 .cse0 .cse1 .cse2))) [2023-04-03 01:08:13,372 INFO L899 garLoopResultBuilder]: For program point L711(lines 710 729) no Hoare annotation was computed. [2023-04-03 01:08:13,372 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 566 595) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L902 garLoopResultBuilder]: At program point L576-2(lines 576 590) the Hoare annotation is: true [2023-04-03 01:08:13,375 INFO L902 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point L572-1(line 572) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L902 garLoopResultBuilder]: At program point L591(lines 566 595) the Hoare annotation is: true [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 566 595) the Hoare annotation is: true [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 584) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L902 garLoopResultBuilder]: At program point L580-1(lines 580 584) the Hoare annotation is: true [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 463 474) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 463 474) the Hoare annotation is: (or (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0) (< 2 |old(~waterLevel~0)|)) [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 918 925) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 918 925) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) (< 1 ~waterLevel~0) .cse0 .cse1))) [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2023-04-03 01:08:13,375 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,375 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 0))))) [2023-04-03 01:08:13,376 INFO L895 garLoopResultBuilder]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= processEnvironment__wrappee__highWaterSensor_~tmp~5 1)) .cse0 .cse1 (< ~waterLevel~0 2)) (or .cse0 (< ~waterLevel~0 1) .cse1 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,376 INFO L895 garLoopResultBuilder]: At program point L745(line 745) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (< 2 ~waterLevel~0) .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 .cse1 (< ~waterLevel~0 1) .cse2 (< 1 ~waterLevel~0)))) [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point L745-1(line 745) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 475 486) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 475 486) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< 1 |old(~waterLevel~0)|) (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or .cse0 (< |old(~waterLevel~0)| 2) .cse1 (< 2 |old(~waterLevel~0)|)))) [2023-04-03 01:08:13,376 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 445 452) the Hoare annotation is: true [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 449) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 445 452) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 684 690) the Hoare annotation is: true [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 684 690) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 835 843) no Hoare annotation was computed. [2023-04-03 01:08:13,376 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 835 843) the Hoare annotation is: true [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 844 879) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point L874-1(line 874) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 844 879) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 56 101) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 629 638) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 629 638) 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)) (< |old(~waterLevel~0)| 1) (not (= |old(~systemActive~0)| 1))) [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 629 638) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L902 garLoopResultBuilder]: At program point L829(line 829) the Hoare annotation is: true [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point L829-1(line 829) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 824 834) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 824 834) the Hoare annotation is: true [2023-04-03 01:08:13,377 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 816 823) no Hoare annotation was computed. [2023-04-03 01:08:13,377 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 816 823) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| 0)) [2023-04-03 01:08:13,382 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:08:13,383 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 323 368) no Hoare annotation was computed. [2023-04-03 01:08:13,383 INFO L899 garLoopResultBuilder]: For program point L285(line 285) no Hoare annotation was computed. [2023-04-03 01:08:13,383 INFO L899 garLoopResultBuilder]: For program point L285-1(line 285) no Hoare annotation was computed. [2023-04-03 01:08:13,383 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 248) no Hoare annotation was computed. [2023-04-03 01:08:13,383 INFO L899 garLoopResultBuilder]: For program point L269-2(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point L290(lines 268 291) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 265) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 220 322) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point L270(lines 269 289) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point L301(line 301) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point L301-1(line 301) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 307) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 667 676) no Hoare annotation was computed. [2023-04-03 01:08:13,384 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 667 676) no Hoare annotation was computed. [2023-04-03 01:08:13,385 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 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 01:08:13,385 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 487 498) the Hoare annotation is: true [2023-04-03 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 487 498) no Hoare annotation was computed. [2023-04-03 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 621 627) no Hoare annotation was computed. [2023-04-03 01:08:13,385 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 621 627) the Hoare annotation is: true [2023-04-03 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 01:08:13,385 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 01:08:13,385 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 01:08:13,386 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 01:08:13,388 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:08:13,390 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:08:13,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:08:13 BoogieIcfgContainer [2023-04-03 01:08:13,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:08:13,409 INFO L158 Benchmark]: Toolchain (without parser) took 31787.87ms. Allocated memory was 274.7MB in the beginning and 837.8MB in the end (delta: 563.1MB). Free memory was 225.7MB in the beginning and 313.1MB in the end (delta: -87.4MB). Peak memory consumption was 491.7MB. Max. memory is 8.0GB. [2023-04-03 01:08:13,410 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 172.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:08:13,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.58ms. Allocated memory is still 274.7MB. Free memory was 225.4MB in the beginning and 206.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-03 01:08:13,410 INFO L158 Benchmark]: Boogie Preprocessor took 57.85ms. Allocated memory is still 274.7MB. Free memory was 206.7MB in the beginning and 203.3MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 01:08:13,410 INFO L158 Benchmark]: RCFGBuilder took 884.41ms. Allocated memory is still 274.7MB. Free memory was 203.0MB in the beginning and 207.5MB in the end (delta: -4.5MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2023-04-03 01:08:13,410 INFO L158 Benchmark]: TraceAbstraction took 30512.09ms. Allocated memory was 274.7MB in the beginning and 837.8MB in the end (delta: 563.1MB). Free memory was 207.0MB in the beginning and 313.1MB in the end (delta: -106.2MB). Peak memory consumption was 472.1MB. Max. memory is 8.0GB. [2023-04-03 01:08:13,411 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 172.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 329.58ms. Allocated memory is still 274.7MB. Free memory was 225.4MB in the beginning and 206.7MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.85ms. Allocated memory is still 274.7MB. Free memory was 206.7MB in the beginning and 203.3MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 884.41ms. Allocated memory is still 274.7MB. Free memory was 203.0MB in the beginning and 207.5MB in the end (delta: -4.5MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. * TraceAbstraction took 30512.09ms. Allocated memory was 274.7MB in the beginning and 837.8MB in the end (delta: 563.1MB). Free memory was 207.0MB in the beginning and 313.1MB in the end (delta: -106.2MB). Peak memory consumption was 472.1MB. 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: 449]: 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 43 procedures, 195 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.4s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3381 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3276 mSDsluCounter, 5830 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4750 mSDsCounter, 2560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10417 IncrementalHoareTripleChecker+Invalid, 12977 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2560 mSolverCounterUnsat, 1080 mSDtfsCounter, 10417 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1660 GetRequests, 1221 SyntacticMatches, 52 SemanticMatches, 387 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18750 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1283occurred in iteration=9, InterpolantAutomatonStates: 185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 846 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 2368 PreInvPairs, 2430 NumberOfFragments, 1310 HoareAnnotationTreeSize, 2368 FomulaSimplifications, 21451 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 66 FomulaSimplificationsInter, 5710 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1733 NumberOfCodeBlocks, 1674 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2073 ConstructedInterpolants, 0 QuantifiedInterpolants, 5444 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2147 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 807/908 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: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: ((((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || (((splverifierCounter == 0 && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= 2)) || !(\old(systemActive) == 1)) || (((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: ((1 < \old(waterLevel) || !(\old(pumpRunning) == 0)) || \old(waterLevel) < 1) || !(\old(systemActive) == 1) RESULT: Ultimate proved your program to be correct! [2023-04-03 01:08:13,436 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...