/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 EqDomain -i ../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:03:13,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:03:13,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:03:13,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:03:13,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:03:13,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:03:13,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:03:13,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:03:13,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:03:13,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:03:13,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:03:13,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:03:13,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:03:13,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:03:13,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:03:13,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:03:13,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:03:13,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:03:13,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:03:13,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:03:13,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:03:13,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:03:13,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:03:13,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:03:13,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:03:13,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:03:13,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:03:13,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:03:13,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:03:13,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:03:13,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:03:13,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:03:13,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:03:13,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:03:13,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:03:13,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:03:13,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:03:13,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:03:13,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:03:13,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:03:13,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:03:13,182 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 12:03:13,204 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:03:13,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:03:13,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:03:13,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:03:13,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:03:13,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:03:13,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:03:13,206 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:03:13,207 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:03:13,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:03:13,207 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:03:13,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:03:13,207 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:03:13,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:03:13,211 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:03:13,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:03:13,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:03:13,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:03:13,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:03:13,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:03:13,211 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:03:13,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:03:13,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:03:13,212 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:03:13,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:03:13,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:03:13,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:03:13,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:03:13,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:03:13,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:03:13,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:03:13,503 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:03:13,504 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:03:13,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2023-04-01 12:03:14,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:03:14,952 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:03:14,953 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2023-04-01 12:03:14,966 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc641d2ae/34e0b81b1d7e48d8982f7d46f9ab0c9a/FLAGee5acd8f4 [2023-04-01 12:03:14,981 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc641d2ae/34e0b81b1d7e48d8982f7d46f9ab0c9a [2023-04-01 12:03:14,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:03:14,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:03:14,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:03:14,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:03:14,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:03:14,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:03:14" (1/1) ... [2023-04-01 12:03:14,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8323f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:14, skipping insertion in model container [2023-04-01 12:03:14,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:03:14" (1/1) ... [2023-04-01 12:03:15,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:03:15,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:03:15,298 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_product12.cil.c[17359,17372] [2023-04-01 12:03:15,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:03:15,316 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:03:15,391 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_product12.cil.c[17359,17372] [2023-04-01 12:03:15,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:03:15,406 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:03:15,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15 WrapperNode [2023-04-01 12:03:15,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:03:15,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:03:15,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:03:15,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:03:15,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:03:15,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:03:15,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:03:15,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:03:15,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (1/1) ... [2023-04-01 12:03:15,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:03:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:03:15,527 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 12:03:15,534 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 12:03:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:03:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:03:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:03:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:03:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:03:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:03:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:03:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:03:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:03:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:03:15,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:03:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:03:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:03:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:03:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:03:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:03:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:03:15,699 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:03:15,701 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:03:16,239 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:03:16,340 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:03:16,340 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:03:16,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:03:16 BoogieIcfgContainer [2023-04-01 12:03:16,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:03:16,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:03:16,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:03:16,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:03:16,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:03:14" (1/3) ... [2023-04-01 12:03:16,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f47cec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:03:16, skipping insertion in model container [2023-04-01 12:03:16,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:15" (2/3) ... [2023-04-01 12:03:16,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f47cec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:03:16, skipping insertion in model container [2023-04-01 12:03:16,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:03:16" (3/3) ... [2023-04-01 12:03:16,354 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2023-04-01 12:03:16,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:03:16,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:03:16,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:03:16,435 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;@3e1284d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:03:16,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:03:16,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 71 states have internal predecessors, (76), 40 states have call successors, (40), 25 states have call predecessors, (40), 25 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-04-01 12:03:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 12:03:16,446 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:16,447 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 12:03:16,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:16,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:16,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1120084682, now seen corresponding path program 1 times [2023-04-01 12:03:16,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:16,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086692302] [2023-04-01 12:03:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:16,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:16,641 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 12:03:16,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:16,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086692302] [2023-04-01 12:03:16,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086692302] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:16,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:03:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194028006] [2023-04-01 12:03:16,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:16,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:03:16,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:16,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:03:16,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:03:16,689 INFO L87 Difference]: Start difference. First operand has 129 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 71 states have internal predecessors, (76), 40 states have call successors, (40), 25 states have call predecessors, (40), 25 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) 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 12:03:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:16,750 INFO L93 Difference]: Finished difference Result 173 states and 210 transitions. [2023-04-01 12:03:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:03:16,752 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 12:03:16,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:16,757 INFO L225 Difference]: With dead ends: 173 [2023-04-01 12:03:16,758 INFO L226 Difference]: Without dead ends: 87 [2023-04-01 12:03:16,760 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 12:03:16,762 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:16,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:03:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-04-01 12:03:16,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-04-01 12:03:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 53 states have internal predecessors, (56), 24 states have call successors, (24), 22 states have call predecessors, (24), 17 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-04-01 12:03:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2023-04-01 12:03:16,806 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 47 [2023-04-01 12:03:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:16,806 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2023-04-01 12:03:16,806 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 12:03:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2023-04-01 12:03:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-01 12:03:16,808 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:16,809 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 12:03:16,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:03:16,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:16,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:16,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1766990653, now seen corresponding path program 1 times [2023-04-01 12:03:16,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:16,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900828595] [2023-04-01 12:03:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:16,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:16,956 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 12:03:16,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:16,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900828595] [2023-04-01 12:03:16,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900828595] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:16,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:16,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:03:16,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651192308] [2023-04-01 12:03:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:16,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:03:16,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:16,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:03:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:03:16,960 INFO L87 Difference]: Start difference. First operand 87 states and 99 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 12:03:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:17,008 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2023-04-01 12:03:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:03:17,008 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 12:03:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:17,012 INFO L225 Difference]: With dead ends: 119 [2023-04-01 12:03:17,012 INFO L226 Difference]: Without dead ends: 79 [2023-04-01 12:03:17,016 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 12:03:17,019 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 11 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:17,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 135 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:03:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-04-01 12:03:17,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-04-01 12:03:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 40 states have (on average 1.25) internal successors, (50), 48 states have internal predecessors, (50), 21 states have call successors, (21), 21 states have call predecessors, (21), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-04-01 12:03:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2023-04-01 12:03:17,036 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 48 [2023-04-01 12:03:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:17,036 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2023-04-01 12:03:17,037 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 12:03:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2023-04-01 12:03:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-01 12:03:17,041 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:17,041 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] [2023-04-01 12:03:17,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:03:17,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:17,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:17,043 INFO L85 PathProgramCache]: Analyzing trace with hash 325277345, now seen corresponding path program 1 times [2023-04-01 12:03:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:17,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884289478] [2023-04-01 12:03:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:17,304 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 12:03:17,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:17,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884289478] [2023-04-01 12:03:17,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884289478] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:17,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:17,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:03:17,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124394560] [2023-04-01 12:03:17,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:17,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:03:17,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:17,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:03:17,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:03:17,307 INFO L87 Difference]: Start difference. First operand 79 states and 88 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) [2023-04-01 12:03:17,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:17,540 INFO L93 Difference]: Finished difference Result 243 states and 286 transitions. [2023-04-01 12:03:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:03:17,541 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 [2023-04-01 12:03:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:17,546 INFO L225 Difference]: With dead ends: 243 [2023-04-01 12:03:17,546 INFO L226 Difference]: Without dead ends: 186 [2023-04-01 12:03:17,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 12:03:17,553 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 127 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:17,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 345 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:03:17,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-04-01 12:03:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 164. [2023-04-01 12:03:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 91 states have (on average 1.2857142857142858) internal successors, (117), 104 states have internal predecessors, (117), 38 states have call successors, (38), 38 states have call predecessors, (38), 34 states have return successors, (35), 34 states have call predecessors, (35), 34 states have call successors, (35) [2023-04-01 12:03:17,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 190 transitions. [2023-04-01 12:03:17,575 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 190 transitions. Word has length 52 [2023-04-01 12:03:17,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:17,576 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 190 transitions. [2023-04-01 12:03:17,576 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) [2023-04-01 12:03:17,576 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 190 transitions. [2023-04-01 12:03:17,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-04-01 12:03:17,578 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:17,578 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] [2023-04-01 12:03:17,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:03:17,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:17,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:17,579 INFO L85 PathProgramCache]: Analyzing trace with hash 974282087, now seen corresponding path program 1 times [2023-04-01 12:03:17,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:17,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527459143] [2023-04-01 12:03:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:17,764 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 12:03:17,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:17,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527459143] [2023-04-01 12:03:17,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527459143] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:17,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:17,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:03:17,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114427286] [2023-04-01 12:03:17,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:17,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:03:17,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:17,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:03:17,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:03:17,768 INFO L87 Difference]: Start difference. First operand 164 states and 190 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 12:03:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:17,890 INFO L93 Difference]: Finished difference Result 430 states and 523 transitions. [2023-04-01 12:03:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:03:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 55 [2023-04-01 12:03:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:17,894 INFO L225 Difference]: With dead ends: 430 [2023-04-01 12:03:17,894 INFO L226 Difference]: Without dead ends: 288 [2023-04-01 12:03:17,895 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 12:03:17,896 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 45 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:17,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 324 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:03:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-04-01 12:03:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 270. [2023-04-01 12:03:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 157 states have (on average 1.2929936305732483) internal successors, (203), 176 states have internal predecessors, (203), 58 states have call successors, (58), 58 states have call predecessors, (58), 54 states have return successors, (60), 54 states have call predecessors, (60), 54 states have call successors, (60) [2023-04-01 12:03:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 321 transitions. [2023-04-01 12:03:17,925 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 321 transitions. Word has length 55 [2023-04-01 12:03:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:17,925 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 321 transitions. [2023-04-01 12:03:17,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 12:03:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 321 transitions. [2023-04-01 12:03:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-01 12:03:17,927 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:17,927 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] [2023-04-01 12:03:17,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:03:17,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:17,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -724290156, now seen corresponding path program 1 times [2023-04-01 12:03:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688175619] [2023-04-01 12:03:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:17,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:03:17,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 12:03:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:03:18,006 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 12:03:18,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 12:03:18,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:03:18,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:03:18,011 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 12:03:18,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:03:18,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:03:18 BoogieIcfgContainer [2023-04-01 12:03:18,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:03:18,067 INFO L158 Benchmark]: Toolchain (without parser) took 3082.35ms. Allocated memory is still 285.2MB. Free memory was 236.4MB in the beginning and 153.1MB in the end (delta: 83.4MB). Peak memory consumption was 84.3MB. Max. memory is 8.0GB. [2023-04-01 12:03:18,067 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 204.5MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:03:18,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.40ms. Allocated memory is still 285.2MB. Free memory was 236.0MB in the beginning and 218.2MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-01 12:03:18,068 INFO L158 Benchmark]: Boogie Preprocessor took 75.12ms. Allocated memory is still 285.2MB. Free memory was 218.2MB in the beginning and 214.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 12:03:18,069 INFO L158 Benchmark]: RCFGBuilder took 858.99ms. Allocated memory is still 285.2MB. Free memory was 214.8MB in the beginning and 219.2MB in the end (delta: -4.4MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. [2023-04-01 12:03:18,071 INFO L158 Benchmark]: TraceAbstraction took 1720.25ms. Allocated memory is still 285.2MB. Free memory was 218.7MB in the beginning and 153.1MB in the end (delta: 65.6MB). Peak memory consumption was 65.6MB. Max. memory is 8.0GB. [2023-04-01 12:03:18,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 204.5MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 419.40ms. Allocated memory is still 285.2MB. Free memory was 236.0MB in the beginning and 218.2MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 75.12ms. Allocated memory is still 285.2MB. Free memory was 218.2MB in the beginning and 214.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 858.99ms. Allocated memory is still 285.2MB. Free memory was 214.8MB in the beginning and 219.2MB in the end (delta: -4.4MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1720.25ms. Allocated memory is still 285.2MB. Free memory was 218.7MB in the beginning and 153.1MB in the end (delta: 65.6MB). Peak memory consumption was 65.6MB. 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: 900]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L316] int waterLevel = 1; [L317] int methaneLevelCritical = 0; [L603] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L800] int cleanupTimeShifts = 4; [L873] int retValue_acc ; [L874] 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] [L878] 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] [L879] 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] [L880] 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] [L425] int retValue_acc ; [L428] retValue_acc = 1 [L429] return (retValue_acc); [L880] 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] [L880] tmp = valid_product() [L882] 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] [L884] 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] [L885] 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] [L867] 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] [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] 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] [L104] 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] [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] 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] [L116] 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] [L334] COND TRUE waterLevel < 2 [L335] waterLevel = waterLevel + 1 [L116] 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] [L122] tmp___0 = __VERIFIER_nondet_int() [L124] 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] [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND FALSE !(\read(tmp___2)) [L140] tmp___1 = __VERIFIER_nondet_int() [L142] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L151] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L190] 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=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L57] 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=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L355] int retValue_acc ; [L358] retValue_acc = methaneLevelCritical [L359] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L67] 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=1, waterLevel=2] [L387] int retValue_acc ; [L390] retValue_acc = waterLevel [L391] return (retValue_acc); [L67] 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=1, tmp=0, waterLevel=2] [L67] tmp___0 = getWaterLevel() [L69] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L71] 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=1, waterLevel=2] [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L71] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L71] tmp___1 = isPumpRunning() [L73] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L77] 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=1, waterLevel=2] [L900] 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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 172 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 900 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 580 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 326 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 320 mSDtfsCounter, 326 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=270occurred 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, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 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! [2023-04-01 12:03:18,090 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...