/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_spec3_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:54:52,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:54:52,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:54:52,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:54:52,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:54:52,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:54:53,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:54:53,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:54:53,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:54:53,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:54:53,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:54:53,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:54:53,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:54:53,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:54:53,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:54:53,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:54:53,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:54:53,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:54:53,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:54:53,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:54:53,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:54:53,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:54:53,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:54:53,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:54:53,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:54:53,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:54:53,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:54:53,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:54:53,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:54:53,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:54:53,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:54:53,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:54:53,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:54:53,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:54:53,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:54:53,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:54:53,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:54:53,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:54:53,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:54:53,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:54:53,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:54:53,046 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 23:54:53,076 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:54:53,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:54:53,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:54:53,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:54:53,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:54:53,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:54:53,078 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:54:53,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:54:53,078 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:54:53,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:54:53,079 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:54:53,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:54:53,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:54:53,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:54:53,080 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:54:53,080 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:54:53,080 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:54:53,080 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:54:53,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:54:53,081 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:54:53,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:54:53,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:54:53,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:54:53,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:54:53,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:54:53,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:54:53,082 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:54:53,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:54:53,082 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:54:53,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:54:53,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:54:53,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:54:53,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:54:53,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:54:53,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:54:53,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:54:53,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:54:53,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:54:53,305 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:54:53,306 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:54:53,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-03-31 23:54:54,420 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:54:54,632 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:54:54,632 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2023-03-31 23:54:54,642 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f57a06d1/2e1941ba32104a32a07c6ee6fb8d1372/FLAG4e7270564 [2023-03-31 23:54:54,658 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f57a06d1/2e1941ba32104a32a07c6ee6fb8d1372 [2023-03-31 23:54:54,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:54:54,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:54:54,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:54:54,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:54:54,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:54:54,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:54:54" (1/1) ... [2023-03-31 23:54:54,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782998cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:54, skipping insertion in model container [2023-03-31 23:54:54,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:54:54" (1/1) ... [2023-03-31 23:54:54,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:54:54,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:54:54,881 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_spec3_product40.cil.c[3936,3949] [2023-03-31 23:54:54,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:54:54,996 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:54:55,026 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_spec3_product40.cil.c[3936,3949] [2023-03-31 23:54:55,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:54:55,086 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:54:55,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55 WrapperNode [2023-03-31 23:54:55,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:54:55,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:54:55,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:54:55,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:54:55,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,140 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:54:55,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:54:55,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:54:55,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:54:55,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (1/1) ... [2023-03-31 23:54:55,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:54:55,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:54:55,189 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 23:54:55,193 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 23:54:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:54:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:54:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:54:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:54:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:54:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-03-31 23:54:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:54:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:54:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:54:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:54:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:54:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:54:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:54:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:54:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:54:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:54:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 23:54:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:54:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:54:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:54:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:54:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:54:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:54:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:54:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:54:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:54:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:54:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:54:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:54:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:54:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:54:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:54:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:54:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:54:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:54:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:54:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:54:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:54:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:54:55,425 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:54:55,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:54:56,005 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:54:56,145 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:54:56,145 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:54:56,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:54:56 BoogieIcfgContainer [2023-03-31 23:54:56,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:54:56,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:54:56,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:54:56,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:54:56,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:54:54" (1/3) ... [2023-03-31 23:54:56,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d4cf90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:54:56, skipping insertion in model container [2023-03-31 23:54:56,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:54:55" (2/3) ... [2023-03-31 23:54:56,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d4cf90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:54:56, skipping insertion in model container [2023-03-31 23:54:56,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:54:56" (3/3) ... [2023-03-31 23:54:56,159 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2023-03-31 23:54:56,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:54:56,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:54:56,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:54:56,239 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;@3590ae43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:54:56,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:54:56,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 85 states have internal predecessors, (90), 49 states have call successors, (49), 30 states have call predecessors, (49), 30 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) [2023-03-31 23:54:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 23:54:56,252 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:56,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:56,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:56,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:56,261 INFO L85 PathProgramCache]: Analyzing trace with hash 848259848, now seen corresponding path program 1 times [2023-03-31 23:54:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:56,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582392197] [2023-03-31 23:54:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:56,512 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 23:54:56,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:56,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582392197] [2023-03-31 23:54:56,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582392197] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:56,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:56,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:54:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819194667] [2023-03-31 23:54:56,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:56,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:54:56,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:56,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:54:56,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:54:56,569 INFO L87 Difference]: Start difference. First operand has 152 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 85 states have internal predecessors, (90), 49 states have call successors, (49), 30 states have call predecessors, (49), 30 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:56,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:56,652 INFO L93 Difference]: Finished difference Result 237 states and 290 transitions. [2023-03-31 23:54:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:54:56,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-03-31 23:54:56,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:56,665 INFO L225 Difference]: With dead ends: 237 [2023-03-31 23:54:56,665 INFO L226 Difference]: Without dead ends: 119 [2023-03-31 23:54:56,669 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 23:54:56,672 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:56,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:54:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-03-31 23:54:56,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-03-31 23:54:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 73 states have internal predecessors, (76), 34 states have call successors, (34), 28 states have call predecessors, (34), 23 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2023-03-31 23:54:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2023-03-31 23:54:56,715 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 47 [2023-03-31 23:54:56,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:56,716 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2023-03-31 23:54:56,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2023-03-31 23:54:56,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-03-31 23:54:56,720 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:56,720 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] [2023-03-31 23:54:56,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:54:56,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:56,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash -743142985, now seen corresponding path program 1 times [2023-03-31 23:54:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399389690] [2023-03-31 23:54:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:56,860 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 23:54:56,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:56,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399389690] [2023-03-31 23:54:56,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399389690] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:56,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:56,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:54:56,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802011646] [2023-03-31 23:54:56,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:56,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:54:56,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:56,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:54:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:54:56,864 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:56,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:56,932 INFO L93 Difference]: Finished difference Result 185 states and 215 transitions. [2023-03-31 23:54:56,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:54:56,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-03-31 23:54:56,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:56,935 INFO L225 Difference]: With dead ends: 185 [2023-03-31 23:54:56,935 INFO L226 Difference]: Without dead ends: 111 [2023-03-31 23:54:56,936 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 23:54:56,937 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 11 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:56,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 207 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:54:56,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-03-31 23:54:56,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-03-31 23:54:56,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 56 states have (on average 1.25) internal successors, (70), 68 states have internal predecessors, (70), 31 states have call successors, (31), 27 states have call predecessors, (31), 23 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2023-03-31 23:54:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2023-03-31 23:54:56,957 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 48 [2023-03-31 23:54:56,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:56,957 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2023-03-31 23:54:56,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:54:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2023-03-31 23:54:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-03-31 23:54:56,966 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:56,966 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] [2023-03-31 23:54:56,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:54:56,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:56,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash -504750557, now seen corresponding path program 1 times [2023-03-31 23:54:56,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:56,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801791036] [2023-03-31 23:54:56,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:56,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:57,249 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 23:54:57,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:57,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801791036] [2023-03-31 23:54:57,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801791036] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:57,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:57,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:54:57,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771656977] [2023-03-31 23:54:57,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:57,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:54:57,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:57,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:54:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:54:57,256 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 23:54:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:57,631 INFO L93 Difference]: Finished difference Result 339 states and 406 transitions. [2023-03-31 23:54:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:54:57,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2023-03-31 23:54:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:57,641 INFO L225 Difference]: With dead ends: 339 [2023-03-31 23:54:57,641 INFO L226 Difference]: Without dead ends: 250 [2023-03-31 23:54:57,642 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 23:54:57,643 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 260 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:57,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 508 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 23:54:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-03-31 23:54:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 238. [2023-03-31 23:54:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 127 states have (on average 1.2834645669291338) internal successors, (163), 150 states have internal predecessors, (163), 62 states have call successors, (62), 54 states have call predecessors, (62), 48 states have return successors, (59), 46 states have call predecessors, (59), 58 states have call successors, (59) [2023-03-31 23:54:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 284 transitions. [2023-03-31 23:54:57,674 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 284 transitions. Word has length 52 [2023-03-31 23:54:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:57,674 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 284 transitions. [2023-03-31 23:54:57,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 23:54:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 284 transitions. [2023-03-31 23:54:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-03-31 23:54:57,676 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:57,676 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] [2023-03-31 23:54:57,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:54:57,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:57,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:57,677 INFO L85 PathProgramCache]: Analyzing trace with hash -934364384, now seen corresponding path program 1 times [2023-03-31 23:54:57,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:57,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120803488] [2023-03-31 23:54:57,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:57,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:54:57,881 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 23:54:57,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:54:57,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120803488] [2023-03-31 23:54:57,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120803488] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:54:57,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:54:57,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:54:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948341824] [2023-03-31 23:54:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:54:57,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:54:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:54:57,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:54:57,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:54:57,884 INFO L87 Difference]: Start difference. First operand 238 states and 284 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:54:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:54:58,052 INFO L93 Difference]: Finished difference Result 652 states and 805 transitions. [2023-03-31 23:54:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:54:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56 [2023-03-31 23:54:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:54:58,055 INFO L225 Difference]: With dead ends: 652 [2023-03-31 23:54:58,055 INFO L226 Difference]: Without dead ends: 436 [2023-03-31 23:54:58,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:54:58,057 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 85 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:54:58,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 484 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:54:58,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-03-31 23:54:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 418. [2023-03-31 23:54:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 229 states have (on average 1.2882096069868996) internal successors, (295), 268 states have internal predecessors, (295), 106 states have call successors, (106), 90 states have call predecessors, (106), 82 states have return successors, (108), 78 states have call predecessors, (108), 102 states have call successors, (108) [2023-03-31 23:54:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 509 transitions. [2023-03-31 23:54:58,102 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 509 transitions. Word has length 56 [2023-03-31 23:54:58,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:54:58,103 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 509 transitions. [2023-03-31 23:54:58,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:54:58,103 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 509 transitions. [2023-03-31 23:54:58,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-03-31 23:54:58,105 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:54:58,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:54:58,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:54:58,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:54:58,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:54:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash 117650718, now seen corresponding path program 1 times [2023-03-31 23:54:58,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:54:58,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351409733] [2023-03-31 23:54:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:54:58,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:54:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:54:58,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 23:54:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:54:58,176 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 23:54:58,177 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 23:54:58,178 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:54:58,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:54:58,183 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-03-31 23:54:58,186 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:54:58,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:54:58 BoogieIcfgContainer [2023-03-31 23:54:58,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:54:58,247 INFO L158 Benchmark]: Toolchain (without parser) took 3585.79ms. Allocated memory was 182.5MB in the beginning and 282.1MB in the end (delta: 99.6MB). Free memory was 128.8MB in the beginning and 175.0MB in the end (delta: -46.2MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. [2023-03-31 23:54:58,247 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:54:58,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.44ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 110.3MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-03-31 23:54:58,248 INFO L158 Benchmark]: Boogie Preprocessor took 58.27ms. Allocated memory is still 182.5MB. Free memory was 110.3MB in the beginning and 106.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-03-31 23:54:58,249 INFO L158 Benchmark]: RCFGBuilder took 1003.30ms. Allocated memory was 182.5MB in the beginning and 282.1MB in the end (delta: 99.6MB). Free memory was 106.8MB in the beginning and 199.6MB in the end (delta: -92.8MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2023-03-31 23:54:58,249 INFO L158 Benchmark]: TraceAbstraction took 2093.33ms. Allocated memory is still 282.1MB. Free memory was 198.6MB in the beginning and 175.0MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-03-31 23:54:58,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 422.44ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 110.3MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.27ms. Allocated memory is still 182.5MB. Free memory was 110.3MB in the beginning and 106.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1003.30ms. Allocated memory was 182.5MB in the beginning and 282.1MB in the end (delta: 99.6MB). Free memory was 106.8MB in the beginning and 199.6MB in the end (delta: -92.8MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2093.33ms. Allocated memory is still 282.1MB. Free memory was 198.6MB in the beginning and 175.0MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 231]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] 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] [L136] 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] [L137] 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] [L138] 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] [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] 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] [L138] tmp = valid_product() [L140] 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] [L142] 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] [L143] 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] [L122] 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] [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] 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] [L548] 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] [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] 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] [L560] 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] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 [L560] 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] [L566] tmp___0 = __VERIFIER_nondet_int() [L568] 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] [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] 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] [L588] CALL stopSystem() 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=2] [L518] COND FALSE !(\read(pumpRunning)) 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=2] [L525] systemActive = 0 [L588] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L595] 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=0, waterLevel=2] [L344] 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=0, waterLevel=2] [L351] COND FALSE !(\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=0, waterLevel=2] [L359] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] 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=0, waterLevel=2] [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] 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=0, waterLevel=2] [L200] tmp = isMethaneLevelCritical() [L202] 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=0, tmp=0, waterLevel=2] [L206] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] 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=0, systemActive=0, tmp=0, waterLevel=2] [L206] tmp___0 = getWaterLevel() [L208] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L210] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] int retValue_acc ; [L454] retValue_acc = pumpRunning [L455] return (retValue_acc); [L210] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L210] tmp___1 = isPumpRunning() [L212] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L216] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L231] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 356 mSDsluCounter, 1331 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 843 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 458 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 488 mSDtfsCounter, 458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-03-31 23:54:58,273 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...