/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:56:58,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:56:58,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:56:58,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:56:58,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:56:58,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:56:58,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:56:58,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:56:58,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:56:58,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:56:58,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:56:58,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:56:58,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:56:58,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:56:58,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:56:58,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:56:58,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:56:58,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:56:58,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:56:58,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:56:58,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:56:58,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:56:58,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:56:58,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:56:58,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:56:58,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:56:58,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:56:58,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:56:58,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:56:58,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:56:58,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:56:58,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:56:58,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:56:58,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:56:58,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:56:58,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:56:58,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:56:58,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:56:58,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:56:58,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:56:58,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:56:58,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 23:56:58,185 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:56:58,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:56:58,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:56:58,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:56:58,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:56:58,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:56:58,187 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:56:58,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:56:58,188 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:56:58,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:56:58,189 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:56:58,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:56:58,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:56:58,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:56:58,189 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:56:58,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:56:58,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:56:58,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:56:58,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:56:58,191 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:56:58,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:56:58,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:56:58,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:56:58,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:56:58,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:56:58,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:56:58,192 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:56:58,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:56:58,192 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:56:58,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:56:58,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:56:58,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:56:58,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:56:58,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:56:58,193 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:56:58,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:56:58,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:56:58,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:56:58,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:56:58,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:56:58,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:56:58,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:56:58,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:56:58,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:56:58,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:56:58,438 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:56:58,438 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:56:58,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2023-03-31 23:56:59,574 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:56:59,787 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:56:59,788 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2023-03-31 23:56:59,805 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0a30b3b/603adfa19e9d40e6b16d274bf30bfa9c/FLAG4b456bdf9 [2023-03-31 23:56:59,816 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0a30b3b/603adfa19e9d40e6b16d274bf30bfa9c [2023-03-31 23:56:59,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:56:59,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:56:59,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:56:59,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:56:59,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:56:59,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:56:59" (1/1) ... [2023-03-31 23:56:59,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d584809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:59, skipping insertion in model container [2023-03-31 23:56:59,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:56:59" (1/1) ... [2023-03-31 23:56:59,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:56:59,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:57:00,099 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_product42.cil.c[17943,17956] [2023-03-31 23:57:00,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:57:00,112 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:57:00,162 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_product42.cil.c[17943,17956] [2023-03-31 23:57:00,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:57:00,178 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:57:00,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00 WrapperNode [2023-03-31 23:57:00,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:57:00,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:57:00,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:57:00,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:57:00,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:57:00,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:57:00,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:57:00,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:57:00,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (1/1) ... [2023-03-31 23:57:00,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:57:00,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:00,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 23:57:00,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 23:57:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:57:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:57:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:57:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:57:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:57:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:57:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:57:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-03-31 23:57:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:57:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:57:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:57:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:57:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:57:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:57:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:57:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:57:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:57:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:57:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:57:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:57:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:57:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:57:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:57:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:57:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:57:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:57:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:57:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:57:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:57:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:57:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:57:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:57:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:57:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:57:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:57:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:57:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:57:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:57:00,513 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:57:00,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:57:01,106 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:57:01,220 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:57:01,220 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:57:01,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:57:01 BoogieIcfgContainer [2023-03-31 23:57:01,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:57:01,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:57:01,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:57:01,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:57:01,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:56:59" (1/3) ... [2023-03-31 23:57:01,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20b0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:57:01, skipping insertion in model container [2023-03-31 23:57:01,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:57:00" (2/3) ... [2023-03-31 23:57:01,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20b0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:57:01, skipping insertion in model container [2023-03-31 23:57:01,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:57:01" (3/3) ... [2023-03-31 23:57:01,230 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2023-03-31 23:57:01,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:57:01,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:57:01,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:57:01,292 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;@57a946d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:57:01,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:57:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 63 states have (on average 1.253968253968254) internal successors, (79), 75 states have internal predecessors, (79), 44 states have call successors, (44), 28 states have call predecessors, (44), 28 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-03-31 23:57:01,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:57:01,306 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:01,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:01,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:01,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1084697110, now seen corresponding path program 1 times [2023-03-31 23:57:01,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:01,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641389425] [2023-03-31 23:57:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:01,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:01,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:01,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641389425] [2023-03-31 23:57:01,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641389425] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:01,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:01,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:57:01,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273483943] [2023-03-31 23:57:01,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:01,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:57:01,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:57:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:57:01,561 INFO L87 Difference]: Start difference. First operand has 138 states, 63 states have (on average 1.253968253968254) internal successors, (79), 75 states have internal predecessors, (79), 44 states have call successors, (44), 28 states have call predecessors, (44), 28 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:01,650 INFO L93 Difference]: Finished difference Result 209 states and 248 transitions. [2023-03-31 23:57:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:57:01,653 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-03-31 23:57:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:01,662 INFO L225 Difference]: With dead ends: 209 [2023-03-31 23:57:01,662 INFO L226 Difference]: Without dead ends: 105 [2023-03-31 23:57:01,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:57:01,670 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:01,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:57:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-03-31 23:57:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-03-31 23:57:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 63 states have internal predecessors, (65), 29 states have call successors, (29), 26 states have call predecessors, (29), 21 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-03-31 23:57:01,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2023-03-31 23:57:01,717 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 42 [2023-03-31 23:57:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:01,721 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2023-03-31 23:57:01,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:01,722 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2023-03-31 23:57:01,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:57:01,724 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:01,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:01,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:57:01,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:01,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash -799273592, now seen corresponding path program 1 times [2023-03-31 23:57:01,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:01,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627837906] [2023-03-31 23:57:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:01,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:01,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627837906] [2023-03-31 23:57:01,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627837906] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:01,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:01,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:57:01,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914564881] [2023-03-31 23:57:01,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:01,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:57:01,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:57:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:57:01,860 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:01,929 INFO L93 Difference]: Finished difference Result 163 states and 182 transitions. [2023-03-31 23:57:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:57:01,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-03-31 23:57:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:01,934 INFO L225 Difference]: With dead ends: 163 [2023-03-31 23:57:01,934 INFO L226 Difference]: Without dead ends: 97 [2023-03-31 23:57:01,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:57:01,936 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 9 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:01,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 171 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:01,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-03-31 23:57:01,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-03-31 23:57:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 58 states have internal predecessors, (59), 26 states have call successors, (26), 25 states have call predecessors, (26), 21 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-03-31 23:57:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2023-03-31 23:57:01,947 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 43 [2023-03-31 23:57:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:01,947 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2023-03-31 23:57:01,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-03-31 23:57:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2023-03-31 23:57:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:57:01,949 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:01,949 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] [2023-03-31 23:57:01,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:57:01,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:01,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1518020785, now seen corresponding path program 1 times [2023-03-31 23:57:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:01,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020005287] [2023-03-31 23:57:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:02,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020005287] [2023-03-31 23:57:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020005287] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:02,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:02,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:57:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266097450] [2023-03-31 23:57:02,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:02,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:57:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:02,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:57:02,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:57:02,192 INFO L87 Difference]: Start difference. First operand 97 states and 107 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) [2023-03-31 23:57:02,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:02,399 INFO L93 Difference]: Finished difference Result 172 states and 193 transitions. [2023-03-31 23:57:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:57:02,402 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 [2023-03-31 23:57:02,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:02,406 INFO L225 Difference]: With dead ends: 172 [2023-03-31 23:57:02,406 INFO L226 Difference]: Without dead ends: 97 [2023-03-31 23:57:02,413 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 [2023-03-31 23:57:02,416 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 96 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:02,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 256 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:02,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-03-31 23:57:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-03-31 23:57:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 49 states have (on average 1.183673469387755) internal successors, (58), 57 states have internal predecessors, (58), 26 states have call successors, (26), 25 states have call predecessors, (26), 21 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-03-31 23:57:02,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2023-03-31 23:57:02,434 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 46 [2023-03-31 23:57:02,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:02,435 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2023-03-31 23:57:02,436 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) [2023-03-31 23:57:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2023-03-31 23:57:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-03-31 23:57:02,440 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:02,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:02,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:57:02,443 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:02,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:02,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1310602972, now seen corresponding path program 1 times [2023-03-31 23:57:02,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:02,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517890512] [2023-03-31 23:57:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:02,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:02,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:02,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517890512] [2023-03-31 23:57:02,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517890512] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:02,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:02,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:57:02,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506978825] [2023-03-31 23:57:02,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:02,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:57:02,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:57:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:57:02,655 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-03-31 23:57:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:02,959 INFO L93 Difference]: Finished difference Result 251 states and 290 transitions. [2023-03-31 23:57:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:57:02,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 54 [2023-03-31 23:57:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:02,962 INFO L225 Difference]: With dead ends: 251 [2023-03-31 23:57:02,962 INFO L226 Difference]: Without dead ends: 176 [2023-03-31 23:57:02,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:57:02,963 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 139 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:02,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 124 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:57:02,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-03-31 23:57:02,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2023-03-31 23:57:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 94 states have internal predecessors, (100), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (38), 34 states have call predecessors, (38), 33 states have call successors, (38) [2023-03-31 23:57:02,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 175 transitions. [2023-03-31 23:57:02,985 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 175 transitions. Word has length 54 [2023-03-31 23:57:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:02,985 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 175 transitions. [2023-03-31 23:57:02,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-03-31 23:57:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 175 transitions. [2023-03-31 23:57:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-03-31 23:57:02,986 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:02,986 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] [2023-03-31 23:57:02,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:57:02,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:02,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:02,987 INFO L85 PathProgramCache]: Analyzing trace with hash 340412589, now seen corresponding path program 1 times [2023-03-31 23:57:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:02,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293916394] [2023-03-31 23:57:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:02,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:03,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:03,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:03,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293916394] [2023-03-31 23:57:03,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293916394] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:03,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:57:03,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 23:57:03,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427636800] [2023-03-31 23:57:03,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:03,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 23:57:03,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:03,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 23:57:03,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:57:03,181 INFO L87 Difference]: Start difference. First operand 159 states and 175 transitions. Second operand has 10 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-03-31 23:57:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:03,498 INFO L93 Difference]: Finished difference Result 496 states and 572 transitions. [2023-03-31 23:57:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 23:57:03,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 63 [2023-03-31 23:57:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:03,506 INFO L225 Difference]: With dead ends: 496 [2023-03-31 23:57:03,506 INFO L226 Difference]: Without dead ends: 359 [2023-03-31 23:57:03,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-03-31 23:57:03,511 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 173 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:03,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 577 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:57:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-03-31 23:57:03,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 345. [2023-03-31 23:57:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 191 states have (on average 1.1727748691099475) internal successors, (224), 212 states have internal predecessors, (224), 75 states have call successors, (75), 75 states have call predecessors, (75), 78 states have return successors, (86), 74 states have call predecessors, (86), 71 states have call successors, (86) [2023-03-31 23:57:03,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 385 transitions. [2023-03-31 23:57:03,577 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 385 transitions. Word has length 63 [2023-03-31 23:57:03,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:03,578 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 385 transitions. [2023-03-31 23:57:03,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-03-31 23:57:03,578 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 385 transitions. [2023-03-31 23:57:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-03-31 23:57:03,586 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:03,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:03,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:57:03,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:03,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2100163695, now seen corresponding path program 1 times [2023-03-31 23:57:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094275291] [2023-03-31 23:57:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 23:57:03,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094275291] [2023-03-31 23:57:03,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094275291] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138409096] [2023-03-31 23:57:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:03,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:03,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:03,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:57:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:03,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-03-31 23:57:03,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:04,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:57:04,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138409096] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:04,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:57:04,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-03-31 23:57:04,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300862596] [2023-03-31 23:57:04,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:04,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:57:04,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:57:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 23:57:04,073 INFO L87 Difference]: Start difference. First operand 345 states and 385 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 23:57:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:04,162 INFO L93 Difference]: Finished difference Result 671 states and 750 transitions. [2023-03-31 23:57:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:57:04,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 120 [2023-03-31 23:57:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:04,169 INFO L225 Difference]: With dead ends: 671 [2023-03-31 23:57:04,169 INFO L226 Difference]: Without dead ends: 348 [2023-03-31 23:57:04,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 23:57:04,174 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 29 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:04,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 214 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:57:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-03-31 23:57:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 312. [2023-03-31 23:57:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 170 states have (on average 1.1411764705882352) internal successors, (194), 188 states have internal predecessors, (194), 68 states have call successors, (68), 68 states have call predecessors, (68), 73 states have return successors, (73), 67 states have call predecessors, (73), 64 states have call successors, (73) [2023-03-31 23:57:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 335 transitions. [2023-03-31 23:57:04,209 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 335 transitions. Word has length 120 [2023-03-31 23:57:04,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:04,209 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 335 transitions. [2023-03-31 23:57:04,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 23:57:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 335 transitions. [2023-03-31 23:57:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-03-31 23:57:04,216 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:04,216 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:04,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 23:57:04,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-03-31 23:57:04,425 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:04,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1744134897, now seen corresponding path program 1 times [2023-03-31 23:57:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:04,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67998403] [2023-03-31 23:57:04,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:04,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-03-31 23:57:04,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67998403] [2023-03-31 23:57:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67998403] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848665872] [2023-03-31 23:57:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:04,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:04,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:04,685 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:04,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:57:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:04,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:57:04,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-03-31 23:57:05,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:05,778 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-03-31 23:57:05,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848665872] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:05,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1450488] [2023-03-31 23:57:05,802 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-03-31 23:57:05,803 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:05,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:05,811 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:05,811 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:06,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:06,069 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:57:06,240 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:57:06,254 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:06,257 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:06,259 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:57:06,836 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 29 for LOIs [2023-03-31 23:57:06,850 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2023-03-31 23:57:06,902 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 22 for LOIs [2023-03-31 23:57:06,954 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-03-31 23:57:06,957 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:06,960 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:06,964 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:06,967 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 24 for LOIs [2023-03-31 23:57:07,021 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:07,073 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:57:07,082 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 22 for LOIs [2023-03-31 23:57:07,085 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:09,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1450488] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:09,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:09,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [7, 14, 12] total 60 [2023-03-31 23:57:09,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129034790] [2023-03-31 23:57:09,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:09,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-03-31 23:57:09,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:09,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-03-31 23:57:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=3178, Unknown=0, NotChecked=0, Total=3540 [2023-03-31 23:57:09,222 INFO L87 Difference]: Start difference. First operand 312 states and 335 transitions. Second operand has 34 states, 24 states have (on average 1.625) internal successors, (39), 27 states have internal predecessors, (39), 12 states have call successors, (18), 8 states have call predecessors, (18), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2023-03-31 23:57:19,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:19,401 INFO L93 Difference]: Finished difference Result 525 states and 589 transitions. [2023-03-31 23:57:19,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-03-31 23:57:19,402 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 24 states have (on average 1.625) internal successors, (39), 27 states have internal predecessors, (39), 12 states have call successors, (18), 8 states have call predecessors, (18), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) Word has length 107 [2023-03-31 23:57:19,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:19,404 INFO L225 Difference]: With dead ends: 525 [2023-03-31 23:57:19,404 INFO L226 Difference]: Without dead ends: 522 [2023-03-31 23:57:19,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2327 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1284, Invalid=8028, Unknown=0, NotChecked=0, Total=9312 [2023-03-31 23:57:19,408 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 424 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 3665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:19,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 101 Invalid, 3665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-03-31 23:57:19,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-03-31 23:57:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 485. [2023-03-31 23:57:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 271 states have (on average 1.1476014760147601) internal successors, (311), 297 states have internal predecessors, (311), 104 states have call successors, (104), 104 states have call predecessors, (104), 109 states have return successors, (118), 100 states have call predecessors, (118), 100 states have call successors, (118) [2023-03-31 23:57:19,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 533 transitions. [2023-03-31 23:57:19,498 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 533 transitions. Word has length 107 [2023-03-31 23:57:19,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:19,499 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 533 transitions. [2023-03-31 23:57:19,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 24 states have (on average 1.625) internal successors, (39), 27 states have internal predecessors, (39), 12 states have call successors, (18), 8 states have call predecessors, (18), 12 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2023-03-31 23:57:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 533 transitions. [2023-03-31 23:57:19,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-03-31 23:57:19,503 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:19,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 23:57:19,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:57:19,709 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,SelfDestructingSolverStorable6 [2023-03-31 23:57:19,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:19,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1121085003, now seen corresponding path program 1 times [2023-03-31 23:57:19,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:19,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769048907] [2023-03-31 23:57:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:19,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-31 23:57:20,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769048907] [2023-03-31 23:57:20,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769048907] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:20,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654977980] [2023-03-31 23:57:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:20,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:20,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:20,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:20,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 23:57:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:20,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:57:20,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:57:20,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:57:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654977980] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:20,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:57:20,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26 [2023-03-31 23:57:20,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538997947] [2023-03-31 23:57:20,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:20,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:57:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:20,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:57:20,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-03-31 23:57:20,586 INFO L87 Difference]: Start difference. First operand 485 states and 533 transitions. Second operand has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2023-03-31 23:57:21,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:21,599 INFO L93 Difference]: Finished difference Result 1198 states and 1379 transitions. [2023-03-31 23:57:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 23:57:21,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 108 [2023-03-31 23:57:21,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:21,604 INFO L225 Difference]: With dead ends: 1198 [2023-03-31 23:57:21,604 INFO L226 Difference]: Without dead ends: 735 [2023-03-31 23:57:21,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1732, Unknown=0, NotChecked=0, Total=1980 [2023-03-31 23:57:21,607 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 180 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:21,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 311 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 23:57:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-03-31 23:57:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 709. [2023-03-31 23:57:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 412 states have (on average 1.1432038834951457) internal successors, (471), 441 states have internal predecessors, (471), 151 states have call successors, (151), 151 states have call predecessors, (151), 145 states have return successors, (175), 143 states have call predecessors, (175), 147 states have call successors, (175) [2023-03-31 23:57:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 797 transitions. [2023-03-31 23:57:21,719 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 797 transitions. Word has length 108 [2023-03-31 23:57:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:21,719 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 797 transitions. [2023-03-31 23:57:21,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2023-03-31 23:57:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 797 transitions. [2023-03-31 23:57:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-03-31 23:57:21,722 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:21,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:21,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 23:57:21,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:21,928 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:21,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:21,928 INFO L85 PathProgramCache]: Analyzing trace with hash 529262522, now seen corresponding path program 1 times [2023-03-31 23:57:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:21,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168895367] [2023-03-31 23:57:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:21,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-03-31 23:57:22,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:22,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168895367] [2023-03-31 23:57:22,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168895367] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502556744] [2023-03-31 23:57:22,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:22,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:22,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:22,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:22,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 23:57:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:22,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:57:22,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-03-31 23:57:22,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-03-31 23:57:23,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502556744] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1193227494] [2023-03-31 23:57:23,053 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2023-03-31 23:57:23,053 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:23,054 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:23,054 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:23,054 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:23,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:23,215 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:57:23,314 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:57:23,324 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:23,326 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:23,328 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:57:23,971 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 25 for LOIs [2023-03-31 23:57:23,975 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-03-31 23:57:24,033 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 22 for LOIs [2023-03-31 23:57:24,065 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-03-31 23:57:24,067 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:24,069 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 34 for LOIs [2023-03-31 23:57:24,076 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:24,078 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:24,080 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 30 for LOIs [2023-03-31 23:57:24,135 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 28 for LOIs [2023-03-31 23:57:24,169 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 28 for LOIs [2023-03-31 23:57:24,176 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 22 for LOIs [2023-03-31 23:57:24,177 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:26,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1193227494] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:57:26,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:26,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [7, 14, 12] total 63 [2023-03-31 23:57:26,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204324664] [2023-03-31 23:57:26,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:57:26,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-03-31 23:57:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:26,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-03-31 23:57:26,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=3524, Unknown=0, NotChecked=0, Total=3906 [2023-03-31 23:57:26,441 INFO L87 Difference]: Start difference. First operand 709 states and 797 transitions. Second operand has 37 states, 25 states have (on average 1.64) internal successors, (41), 30 states have internal predecessors, (41), 13 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2023-03-31 23:57:42,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:42,316 INFO L93 Difference]: Finished difference Result 1031 states and 1320 transitions. [2023-03-31 23:57:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-03-31 23:57:42,317 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 25 states have (on average 1.64) internal successors, (41), 30 states have internal predecessors, (41), 13 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) Word has length 110 [2023-03-31 23:57:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:42,329 INFO L225 Difference]: With dead ends: 1031 [2023-03-31 23:57:42,329 INFO L226 Difference]: Without dead ends: 1028 [2023-03-31 23:57:42,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 280 SyntacticMatches, 10 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5920 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=2385, Invalid=16521, Unknown=0, NotChecked=0, Total=18906 [2023-03-31 23:57:42,335 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 905 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 4802 mSolverCounterSat, 782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 5584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 782 IncrementalHoareTripleChecker+Valid, 4802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:42,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 371 Invalid, 5584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [782 Valid, 4802 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-03-31 23:57:42,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-03-31 23:57:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 421. [2023-03-31 23:57:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 238 states have (on average 1.134453781512605) internal successors, (270), 259 states have internal predecessors, (270), 92 states have call successors, (92), 92 states have call predecessors, (92), 90 states have return successors, (102), 88 states have call predecessors, (102), 88 states have call successors, (102) [2023-03-31 23:57:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 464 transitions. [2023-03-31 23:57:42,441 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 464 transitions. Word has length 110 [2023-03-31 23:57:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:42,442 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 464 transitions. [2023-03-31 23:57:42,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 25 states have (on average 1.64) internal successors, (41), 30 states have internal predecessors, (41), 13 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2023-03-31 23:57:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 464 transitions. [2023-03-31 23:57:42,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-03-31 23:57:42,445 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:42,445 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 23:57:42,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-03-31 23:57:42,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:42,651 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:42,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash -22510256, now seen corresponding path program 1 times [2023-03-31 23:57:42,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:42,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216624193] [2023-03-31 23:57:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:42,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-03-31 23:57:43,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:57:43,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216624193] [2023-03-31 23:57:43,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216624193] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:57:43,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027186681] [2023-03-31 23:57:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:43,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:57:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:57:43,106 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:57:43,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 23:57:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:57:43,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:57:43,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:57:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 23:57:43,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:57:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 23:57:44,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027186681] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:57:44,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [703384042] [2023-03-31 23:57:44,003 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2023-03-31 23:57:44,003 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:57:44,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:57:44,003 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:57:44,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:57:44,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:57:44,123 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:57:44,202 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:57:44,209 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:57:44,210 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:57:44,211 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:57:44,666 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 29 for LOIs [2023-03-31 23:57:44,671 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:57:44,732 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:57:44,783 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:57:44,785 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:57:44,788 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:57:44,791 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:57:44,794 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:57:44,797 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:57:44,799 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-03-31 23:57:44,875 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:57:44,892 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:57:44,896 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:57:44,928 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 32 for LOIs [2023-03-31 23:57:44,945 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 32 for LOIs [2023-03-31 23:57:44,948 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__highWaterSensor with input of size 24 for LOIs [2023-03-31 23:57:44,950 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:57:44,952 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:57:47,564 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14131#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:57:47,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:57:47,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:57:47,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 17] total 33 [2023-03-31 23:57:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427619359] [2023-03-31 23:57:47,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:57:47,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-03-31 23:57:47,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:57:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-03-31 23:57:47,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=5757, Unknown=0, NotChecked=0, Total=6320 [2023-03-31 23:57:47,569 INFO L87 Difference]: Start difference. First operand 421 states and 464 transitions. Second operand has 33 states, 23 states have (on average 4.739130434782608) internal successors, (109), 26 states have internal predecessors, (109), 10 states have call successors, (53), 12 states have call predecessors, (53), 16 states have return successors, (44), 16 states have call predecessors, (44), 10 states have call successors, (44) [2023-03-31 23:57:49,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:57:49,324 INFO L93 Difference]: Finished difference Result 774 states and 894 transitions. [2023-03-31 23:57:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-03-31 23:57:49,325 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 23 states have (on average 4.739130434782608) internal successors, (109), 26 states have internal predecessors, (109), 10 states have call successors, (53), 12 states have call predecessors, (53), 16 states have return successors, (44), 16 states have call predecessors, (44), 10 states have call successors, (44) Word has length 111 [2023-03-31 23:57:49,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:57:49,327 INFO L225 Difference]: With dead ends: 774 [2023-03-31 23:57:49,327 INFO L226 Difference]: Without dead ends: 559 [2023-03-31 23:57:49,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 272 SyntacticMatches, 9 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5240 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1069, Invalid=10703, Unknown=0, NotChecked=0, Total=11772 [2023-03-31 23:57:49,331 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 815 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 740 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:57:49,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 807 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [740 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 23:57:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-03-31 23:57:49,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 341. [2023-03-31 23:57:49,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 191 states have (on average 1.12565445026178) internal successors, (215), 210 states have internal predecessors, (215), 76 states have call successors, (76), 76 states have call predecessors, (76), 73 states have return successors, (80), 72 states have call predecessors, (80), 72 states have call successors, (80) [2023-03-31 23:57:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 371 transitions. [2023-03-31 23:57:49,412 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 371 transitions. Word has length 111 [2023-03-31 23:57:49,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:57:49,412 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 371 transitions. [2023-03-31 23:57:49,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 23 states have (on average 4.739130434782608) internal successors, (109), 26 states have internal predecessors, (109), 10 states have call successors, (53), 12 states have call predecessors, (53), 16 states have return successors, (44), 16 states have call predecessors, (44), 10 states have call successors, (44) [2023-03-31 23:57:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 371 transitions. [2023-03-31 23:57:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-03-31 23:57:49,414 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:57:49,414 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:49,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 23:57:49,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-31 23:57:49,621 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:57:49,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:57:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash 910390712, now seen corresponding path program 2 times [2023-03-31 23:57:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:57:49,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338204697] [2023-03-31 23:57:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:57:49,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:57:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:57:49,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 23:57:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:57:49,699 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 23:57:49,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 23:57:49,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:57:49,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-03-31 23:57:49,706 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:57:49,710 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:57:49,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:57:49 BoogieIcfgContainer [2023-03-31 23:57:49,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:57:49,793 INFO L158 Benchmark]: Toolchain (without parser) took 49974.28ms. Allocated memory was 256.9MB in the beginning and 565.2MB in the end (delta: 308.3MB). Free memory was 211.2MB in the beginning and 341.7MB in the end (delta: -130.5MB). Peak memory consumption was 179.7MB. Max. memory is 8.0GB. [2023-03-31 23:57:49,794 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:57:49,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.21ms. Allocated memory is still 256.9MB. Free memory was 211.2MB in the beginning and 192.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:57:49,794 INFO L158 Benchmark]: Boogie Preprocessor took 56.41ms. Allocated memory is still 256.9MB. Free memory was 192.8MB in the beginning and 189.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:57:49,794 INFO L158 Benchmark]: RCFGBuilder took 987.06ms. Allocated memory is still 256.9MB. Free memory was 189.3MB in the beginning and 194.8MB in the end (delta: -5.6MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. [2023-03-31 23:57:49,795 INFO L158 Benchmark]: TraceAbstraction took 48568.37ms. Allocated memory was 256.9MB in the beginning and 565.2MB in the end (delta: 308.3MB). Free memory was 193.8MB in the beginning and 341.7MB in the end (delta: -147.9MB). Peak memory consumption was 161.4MB. Max. memory is 8.0GB. [2023-03-31 23:57:49,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 176.2MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 358.21ms. Allocated memory is still 256.9MB. Free memory was 211.2MB in the beginning and 192.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.41ms. Allocated memory is still 256.9MB. Free memory was 192.8MB in the beginning and 189.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 987.06ms. Allocated memory is still 256.9MB. Free memory was 189.3MB in the beginning and 194.8MB in the end (delta: -5.6MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. * TraceAbstraction took 48568.37ms. Allocated memory was 256.9MB in the beginning and 565.2MB in the end (delta: 308.3MB). Free memory was 193.8MB in the beginning and 341.7MB in the end (delta: -147.9MB). Peak memory consumption was 161.4MB. 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 - CounterExampleResult [Line: 934]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L583] int cleanupTimeShifts = 4; [L752] int pumpRunning = 0; [L753] int systemActive = 1; [L659] int retValue_acc ; [L660] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L664] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L665] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L666] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L666] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L666] tmp = valid_product() [L668] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L670] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L671] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L653] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L684] int splverifierCounter ; [L685] int tmp ; [L686] int tmp___0 ; [L687] int tmp___1 ; [L688] int tmp___2 ; [L691] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L693] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L695] COND TRUE splverifierCounter < 4 [L701] tmp = __VERIFIER_nondet_int() [L703] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L705] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 [L705] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp___2)) [L729] tmp___1 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L738] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L759] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L788] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L791] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L903] int retValue_acc ; [L904] int tmp ; [L905] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] int retValue_acc ; [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); [L909] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] tmp = isHighWaterSensorDry() [L911] COND FALSE !(\read(tmp)) [L914] tmp___0 = 1 [L916] retValue_acc = tmp___0 [L917] return (retValue_acc); [L793] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] tmp = isHighWaterLevel() [L795] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L797] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L822] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L847] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L851] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] retValue_acc = isMethaneLevelCritical() [L853] return (retValue_acc); [L826] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] tmp = isMethaneAlarm() [L828] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L832] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] pumpRunning = 1 [L832] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L797] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L768] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L774] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L558] int tmp ; [L559] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L563] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L774] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L738] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L693] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L695] COND TRUE splverifierCounter < 4 [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp___2)) [L729] tmp___1 = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L738] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L759] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L761] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 [L761] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L766] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L768] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L788] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L791] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L806] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L768] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L774] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L558] int tmp ; [L559] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L563] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L774] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L738] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L693] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L695] COND TRUE splverifierCounter < 4 [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp___2)) [L729] tmp___1 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L738] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L759] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L761] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 [L761] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L766] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L768] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L788] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L791] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L806] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L768] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L774] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L558] int tmp ; [L559] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L563] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L563] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L563] tmp = getWaterLevel() [L565] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L567] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L858] int retValue_acc ; [L861] retValue_acc = pumpRunning [L862] return (retValue_acc); [L567] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L571] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L934] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 179 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.4s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2829 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2770 mSDsluCounter, 3044 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2293 mSDsCounter, 2100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12168 IncrementalHoareTripleChecker+Invalid, 14268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2100 mSolverCounterUnsat, 751 mSDtfsCounter, 12168 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1517 GetRequests, 1079 SyntacticMatches, 20 SemanticMatches, 418 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14040 ImplicationChecksByTransitivity, 29.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=8, InterpolantAutomatonStates: 219, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 955 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1503 NumberOfCodeBlocks, 1503 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1670 ConstructedInterpolants, 0 QuantifiedInterpolants, 4283 SizeOfPredicates, 35 NumberOfNonLiveVariables, 2190 ConjunctsInSsa, 190 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 314/400 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: OVERALL_TIME: 2.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 37, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 171, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 157, TOOLS_POST_TIME: 0.6s, TOOLS_POST_CALL_APPLICATIONS: 135, TOOLS_POST_CALL_TIME: 0.7s, TOOLS_POST_RETURN_APPLICATIONS: 100, TOOLS_POST_RETURN_TIME: 0.7s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 392, TOOLS_QUANTIFIERELIM_TIME: 1.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 536, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 107, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 171, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 100, CALL_SUMMARIZER_CACHE_MISSES: 29, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1432, DAG_COMPRESSION_RETAINED_NODES: 509, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-03-31 23:57:49,811 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...