/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:57:12,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:57:12,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:57:13,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:57:13,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:57:13,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:57:13,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:57:13,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:57:13,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:57:13,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:57:13,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:57:13,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:57:13,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:57:13,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:57:13,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:57:13,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:57:13,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:57:13,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:57:13,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:57:13,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:57:13,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:57:13,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:57:13,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:57:13,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:57:13,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:57:13,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:57:13,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:57:13,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:57:13,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:57:13,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:57:13,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:57:13,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:57:13,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:57:13,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:57:13,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:57:13,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:57:13,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:57:13,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:57:13,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:57:13,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:57:13,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:57:13,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 05:57:13,062 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:57:13,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:57:13,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:57:13,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:57:13,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:57:13,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:57:13,064 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:57:13,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:57:13,064 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:57:13,064 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:57:13,065 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:57:13,065 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:57:13,065 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:57:13,065 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:57:13,065 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:57:13,066 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:57:13,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:57:13,066 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:57:13,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:57:13,066 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:57:13,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:57:13,067 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:57:13,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:57:13,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:57:13,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:57:13,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:57:13,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:57:13,068 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:57:13,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:57:13,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:57:13,069 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:57:13,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:57:13,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:57:13,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:57:13,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:57:13,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:57:13,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:57:13,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:57:13,331 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:57:13,332 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:57:13,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c [2023-04-01 05:57:14,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:57:14,765 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:57:14,765 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c [2023-04-01 05:57:14,778 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22ac7d21/cd1376222f0746ffa00ac11bad2e8432/FLAG3154ded86 [2023-04-01 05:57:14,795 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22ac7d21/cd1376222f0746ffa00ac11bad2e8432 [2023-04-01 05:57:14,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:57:14,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:57:14,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:57:14,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:57:14,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:57:14,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:57:14" (1/1) ... [2023-04-01 05:57:14,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dea6be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:14, skipping insertion in model container [2023-04-01 05:57:14,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:57:14" (1/1) ... [2023-04-01 05:57:14,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:57:14,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:57:14,981 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_product09.cil.c[2897,2910] [2023-04-01 05:57:15,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:57:15,074 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:57:15,103 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_product09.cil.c[2897,2910] [2023-04-01 05:57:15,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:57:15,192 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:57:15,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15 WrapperNode [2023-04-01 05:57:15,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:57:15,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:57:15,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:57:15,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:57:15,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:57:15,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:57:15,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:57:15,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:57:15,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (1/1) ... [2023-04-01 05:57:15,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:57:15,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:57:15,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 05:57:15,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 05:57:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:57:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:57:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:57:15,365 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:57:15,366 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-01 05:57:15,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:57:15,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:57:15,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:57:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:57:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:57:15,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:57:15,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:57:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:57:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:57:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:57:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:57:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:57:15,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:57:15,539 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:57:15,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:57:16,018 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:57:16,173 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:57:16,173 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:57:16,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:57:16 BoogieIcfgContainer [2023-04-01 05:57:16,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:57:16,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:57:16,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:57:16,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:57:16,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:57:14" (1/3) ... [2023-04-01 05:57:16,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b0f501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:57:16, skipping insertion in model container [2023-04-01 05:57:16,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:15" (2/3) ... [2023-04-01 05:57:16,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b0f501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:57:16, skipping insertion in model container [2023-04-01 05:57:16,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:57:16" (3/3) ... [2023-04-01 05:57:16,186 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2023-04-01 05:57:16,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:57:16,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:57:16,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:57:16,269 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;@6077f4dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:57:16,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:57:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 62 states have internal predecessors, (67), 37 states have call successors, (37), 22 states have call predecessors, (37), 22 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-04-01 05:57:16,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 05:57:16,283 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:16,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:57:16,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:16,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:16,292 INFO L85 PathProgramCache]: Analyzing trace with hash -327813074, now seen corresponding path program 1 times [2023-04-01 05:57:16,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:16,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872425871] [2023-04-01 05:57:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:16,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:57:16,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872425871] [2023-04-01 05:57:16,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872425871] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:16,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:16,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:57:16,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694633304] [2023-04-01 05:57:16,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:16,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:57:16,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:57:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:57:16,517 INFO L87 Difference]: Start difference. First operand has 117 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 62 states have internal predecessors, (67), 37 states have call successors, (37), 22 states have call predecessors, (37), 22 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) 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) [2023-04-01 05:57:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:16,567 INFO L93 Difference]: Finished difference Result 149 states and 180 transitions. [2023-04-01 05:57:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:57:16,571 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 [2023-04-01 05:57:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:16,579 INFO L225 Difference]: With dead ends: 149 [2023-04-01 05:57:16,579 INFO L226 Difference]: Without dead ends: 75 [2023-04-01 05:57:16,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:57:16,589 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:16,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-04-01 05:57:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-04-01 05:57:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 39 states have (on average 1.205128205128205) internal successors, (47), 44 states have internal predecessors, (47), 21 states have call successors, (21), 19 states have call predecessors, (21), 14 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-04-01 05:57:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2023-04-01 05:57:16,638 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 47 [2023-04-01 05:57:16,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:16,639 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2023-04-01 05:57:16,639 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) [2023-04-01 05:57:16,639 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2023-04-01 05:57:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-01 05:57:16,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:16,642 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] [2023-04-01 05:57:16,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:57:16,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:16,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:16,643 INFO L85 PathProgramCache]: Analyzing trace with hash -223843378, now seen corresponding path program 1 times [2023-04-01 05:57:16,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:16,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029721401] [2023-04-01 05:57:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:16,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:57:16,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:16,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029721401] [2023-04-01 05:57:16,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029721401] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:16,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:16,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:57:16,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012392585] [2023-04-01 05:57:16,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:16,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:57:16,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:16,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:57:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:16,793 INFO L87 Difference]: Start difference. First operand 75 states and 84 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) [2023-04-01 05:57:16,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:16,840 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2023-04-01 05:57:16,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:57:16,841 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 [2023-04-01 05:57:16,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:16,844 INFO L225 Difference]: With dead ends: 107 [2023-04-01 05:57:16,844 INFO L226 Difference]: Without dead ends: 67 [2023-04-01 05:57:16,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:16,848 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:16,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 116 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:16,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-04-01 05:57:16,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-04-01 05:57:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 39 states have internal predecessors, (41), 18 states have call successors, (18), 18 states have call predecessors, (18), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-01 05:57:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2023-04-01 05:57:16,860 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 48 [2023-04-01 05:57:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:16,861 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2023-04-01 05:57:16,861 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) [2023-04-01 05:57:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2023-04-01 05:57:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-01 05:57:16,867 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:16,867 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] [2023-04-01 05:57:16,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:57:16,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:16,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:16,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1857924518, now seen corresponding path program 1 times [2023-04-01 05:57:16,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:16,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717044499] [2023-04-01 05:57:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:16,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:57:16,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:16,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717044499] [2023-04-01 05:57:16,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717044499] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:16,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:16,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:57:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489211159] [2023-04-01 05:57:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:16,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:57:16,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:16,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:57:16,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:16,980 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 05:57:17,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:17,026 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2023-04-01 05:57:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:57:17,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 50 [2023-04-01 05:57:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:17,032 INFO L225 Difference]: With dead ends: 112 [2023-04-01 05:57:17,032 INFO L226 Difference]: Without dead ends: 67 [2023-04-01 05:57:17,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:17,034 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 50 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:17,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 62 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-04-01 05:57:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-04-01 05:57:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 38 states have internal predecessors, (40), 18 states have call successors, (18), 18 states have call predecessors, (18), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-01 05:57:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2023-04-01 05:57:17,044 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 50 [2023-04-01 05:57:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:17,044 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2023-04-01 05:57:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 05:57:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2023-04-01 05:57:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-01 05:57:17,046 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:17,046 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] [2023-04-01 05:57:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:57:17,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:17,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash -129506523, now seen corresponding path program 1 times [2023-04-01 05:57:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293935028] [2023-04-01 05:57:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:17,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:57:17,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:17,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293935028] [2023-04-01 05:57:17,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293935028] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:17,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:17,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:57:17,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626425034] [2023-04-01 05:57:17,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:17,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:57:17,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:57:17,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:57:17,335 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (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) [2023-04-01 05:57:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:17,449 INFO L93 Difference]: Finished difference Result 149 states and 169 transitions. [2023-04-01 05:57:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:57:17,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (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 53 [2023-04-01 05:57:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:17,458 INFO L225 Difference]: With dead ends: 149 [2023-04-01 05:57:17,458 INFO L226 Difference]: Without dead ends: 104 [2023-04-01 05:57:17,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 05:57:17,467 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 31 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:17,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 259 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:57:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-04-01 05:57:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-04-01 05:57:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 24 states have call successors, (24), 24 states have call predecessors, (24), 20 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2023-04-01 05:57:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2023-04-01 05:57:17,497 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 53 [2023-04-01 05:57:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:17,498 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2023-04-01 05:57:17,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (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) [2023-04-01 05:57:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2023-04-01 05:57:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-01 05:57:17,503 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:17,504 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] [2023-04-01 05:57:17,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:57:17,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:17,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:17,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2023408313, now seen corresponding path program 1 times [2023-04-01 05:57:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:17,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698762306] [2023-04-01 05:57:17,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:17,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:57:17,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:17,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698762306] [2023-04-01 05:57:17,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698762306] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:17,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:17,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:57:17,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102753809] [2023-04-01 05:57:17,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:17,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:57:17,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:17,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:57:17,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:17,599 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-01 05:57:17,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:17,632 INFO L93 Difference]: Finished difference Result 140 states and 156 transitions. [2023-04-01 05:57:17,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:57:17,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 56 [2023-04-01 05:57:17,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:17,635 INFO L225 Difference]: With dead ends: 140 [2023-04-01 05:57:17,636 INFO L226 Difference]: Without dead ends: 95 [2023-04-01 05:57:17,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:17,639 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 47 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:17,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 59 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-04-01 05:57:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-04-01 05:57:17,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 56 states have internal predecessors, (60), 23 states have call successors, (23), 23 states have call predecessors, (23), 19 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-04-01 05:57:17,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2023-04-01 05:57:17,668 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 56 [2023-04-01 05:57:17,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:17,668 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2023-04-01 05:57:17,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-01 05:57:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2023-04-01 05:57:17,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-01 05:57:17,670 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:17,670 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] [2023-04-01 05:57:17,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:57:17,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:17,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:17,671 INFO L85 PathProgramCache]: Analyzing trace with hash -968282441, now seen corresponding path program 1 times [2023-04-01 05:57:17,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:17,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792711644] [2023-04-01 05:57:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:17,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:57:17,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 05:57:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:57:17,745 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 05:57:17,745 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 05:57:17,746 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:57:17,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 05:57:17,751 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-01 05:57:17,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:57:17,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:57:17 BoogieIcfgContainer [2023-04-01 05:57:17,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:57:17,812 INFO L158 Benchmark]: Toolchain (without parser) took 3013.93ms. Allocated memory was 217.1MB in the beginning and 366.0MB in the end (delta: 148.9MB). Free memory was 174.3MB in the beginning and 178.0MB in the end (delta: -3.8MB). Peak memory consumption was 145.8MB. Max. memory is 8.0GB. [2023-04-01 05:57:17,812 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 163.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:57:17,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.87ms. Allocated memory is still 217.1MB. Free memory was 173.9MB in the beginning and 156.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-01 05:57:17,813 INFO L158 Benchmark]: Boogie Preprocessor took 80.60ms. Allocated memory is still 217.1MB. Free memory was 156.1MB in the beginning and 153.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 05:57:17,813 INFO L158 Benchmark]: RCFGBuilder took 900.04ms. Allocated memory was 217.1MB in the beginning and 366.0MB in the end (delta: 148.9MB). Free memory was 153.0MB in the beginning and 308.6MB in the end (delta: -155.6MB). Peak memory consumption was 37.8MB. Max. memory is 8.0GB. [2023-04-01 05:57:17,813 INFO L158 Benchmark]: TraceAbstraction took 1631.63ms. Allocated memory is still 366.0MB. Free memory was 308.1MB in the beginning and 178.0MB in the end (delta: 130.0MB). Peak memory consumption was 130.0MB. Max. memory is 8.0GB. [2023-04-01 05:57:17,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 163.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 395.87ms. Allocated memory is still 217.1MB. Free memory was 173.9MB in the beginning and 156.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.60ms. Allocated memory is still 217.1MB. Free memory was 156.1MB in the beginning and 153.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 900.04ms. Allocated memory was 217.1MB in the beginning and 366.0MB in the end (delta: 148.9MB). Free memory was 153.0MB in the beginning and 308.6MB in the end (delta: -155.6MB). Peak memory consumption was 37.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1631.63ms. Allocated memory is still 366.0MB. Free memory was 308.1MB in the beginning and 178.0MB in the end (delta: 130.0MB). Peak memory consumption was 130.0MB. 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: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L234] int pumpRunning = 0; [L235] int systemActive = 1; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L796] int waterLevel = 1; [L797] int methaneLevelCritical = 0; [L131] int retValue_acc ; [L132] int tmp ; VAL [\old(methaneLevelCritical)=0, \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(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \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(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L421] int retValue_acc ; [L424] retValue_acc = 1 [L425] return (retValue_acc); [L138] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \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(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(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(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L122] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] int splverifierCounter ; [L165] int tmp ; [L166] int tmp___0 ; [L167] int tmp___1 ; [L168] int tmp___2 ; [L171] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L173] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L175] COND TRUE splverifierCounter < 4 [L181] tmp = __VERIFIER_nondet_int() [L183] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L185] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L814] COND TRUE waterLevel < 2 [L815] waterLevel = waterLevel + 1 [L185] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L191] tmp___0 = __VERIFIER_nondet_int() [L193] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L201] tmp___2 = __VERIFIER_nondet_int() [L203] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=57, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=-2, waterLevel=2] [L216] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L251] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L257] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L362] int tmp ; [L363] int tmp___0 ; [L364] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L368] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L835] int retValue_acc ; [L838] retValue_acc = methaneLevelCritical [L839] return (retValue_acc); [L368] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L368] tmp = isMethaneLevelCritical() [L370] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L374] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] int retValue_acc ; [L870] retValue_acc = waterLevel [L871] return (retValue_acc); [L374] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L374] tmp___0 = getWaterLevel() [L376] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L378] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L315] int retValue_acc ; [L318] retValue_acc = pumpRunning [L319] return (retValue_acc); [L378] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L378] tmp___1 = isPumpRunning() [L380] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L384] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L158] reach_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 162 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 579 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 327 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2023-04-01 05:57:17,830 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...