/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:57:38,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:57:38,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:57:38,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:57:38,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:57:38,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:57:38,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:57:38,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:57:38,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:57:38,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:57:38,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:57:38,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:57:38,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:57:38,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:57:38,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:57:38,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:57:38,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:57:38,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:57:38,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:57:38,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:57:38,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:57:38,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:57:38,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:57:38,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:57:38,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:57:38,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:57:38,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:57:38,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:57:38,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:57:38,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:57:38,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:57:38,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:57:38,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:57:38,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:57:38,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:57:38,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:57:38,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:57:38,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:57:38,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:57:38,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:57:38,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:57:38,527 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 05:57:38,541 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:57:38,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:57:38,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:57:38,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:57:38,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:57:38,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:57:38,542 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:57:38,543 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:57:38,543 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:57:38,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:57:38,543 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:57:38,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:57:38,543 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:57:38,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:57:38,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:57:38,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:57:38,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:57:38,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:57:38,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:57:38,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:57:38,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:57:38,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:57:38,707 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:57:38,707 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:57:38,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2023-04-01 05:57:39,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:57:40,076 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:57:40,076 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2023-04-01 05:57:40,102 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4804b5149/88a2fc28940e4ab1a12ffbbe9c0ff3bd/FLAGd106816c3 [2023-04-01 05:57:40,121 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4804b5149/88a2fc28940e4ab1a12ffbbe9c0ff3bd [2023-04-01 05:57:40,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:57:40,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:57:40,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:57:40,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:57:40,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:57:40,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b89a898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40, skipping insertion in model container [2023-04-01 05:57:40,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:57:40,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:57:40,387 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_product47.cil.c[1605,1618] [2023-04-01 05:57:40,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:57:40,468 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:57:40,487 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_product47.cil.c[1605,1618] [2023-04-01 05:57:40,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:57:40,586 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:57:40,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40 WrapperNode [2023-04-01 05:57:40,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:57:40,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:57:40,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:57:40,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:57:40,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,700 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:57:40,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:57:40,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:57:40,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:57:40,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (1/1) ... [2023-04-01 05:57:40,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:57:40,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:57:40,770 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 05:57:40,785 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 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:57:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:57:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:57:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 05:57:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-01 05:57:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:57:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:57:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:57:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:57:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:57:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:57:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:57:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:57:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:57:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:57:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:57:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:57:40,900 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:57:40,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:57:41,388 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:57:41,513 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:57:41,513 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:57:41,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:57:41 BoogieIcfgContainer [2023-04-01 05:57:41,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:57:41,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:57:41,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:57:41,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:57:41,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:57:40" (1/3) ... [2023-04-01 05:57:41,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea9d6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:57:41, skipping insertion in model container [2023-04-01 05:57:41,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:40" (2/3) ... [2023-04-01 05:57:41,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea9d6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:57:41, skipping insertion in model container [2023-04-01 05:57:41,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:57:41" (3/3) ... [2023-04-01 05:57:41,525 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2023-04-01 05:57:41,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:57:41,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:57:41,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:57:41,587 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;@3eb67212, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:57:41,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:57:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 88 states have internal predecessors, (94), 50 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2023-04-01 05:57:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 05:57:41,598 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:41,599 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 05:57:41,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:41,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash 489887275, now seen corresponding path program 1 times [2023-04-01 05:57:41,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:41,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52115449] [2023-04-01 05:57:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:41,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:41,801 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 05:57:41,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:41,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52115449] [2023-04-01 05:57:41,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52115449] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:41,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:41,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:57:41,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617220211] [2023-04-01 05:57:41,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:41,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:57:41,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:57:41,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:57:41,847 INFO L87 Difference]: Start difference. First operand has 156 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 88 states have internal predecessors, (94), 50 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) 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 05:57:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:41,926 INFO L93 Difference]: Finished difference Result 245 states and 302 transitions. [2023-04-01 05:57:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:57:41,928 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 05:57:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:41,939 INFO L225 Difference]: With dead ends: 245 [2023-04-01 05:57:41,939 INFO L226 Difference]: Without dead ends: 123 [2023-04-01 05:57:41,945 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 05:57:41,949 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:41,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-04-01 05:57:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-04-01 05:57:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 64 states have (on average 1.25) internal successors, (80), 76 states have internal predecessors, (80), 35 states have call successors, (35), 28 states have call predecessors, (35), 23 states have return successors, (30), 26 states have call predecessors, (30), 30 states have call successors, (30) [2023-04-01 05:57:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2023-04-01 05:57:42,006 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 47 [2023-04-01 05:57:42,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:42,007 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2023-04-01 05:57:42,007 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 05:57:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2023-04-01 05:57:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-01 05:57:42,014 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:42,014 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 05:57:42,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:57:42,014 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:42,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:42,015 INFO L85 PathProgramCache]: Analyzing trace with hash -647120435, now seen corresponding path program 1 times [2023-04-01 05:57:42,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:42,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295750812] [2023-04-01 05:57:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:42,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:57:42,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:42,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295750812] [2023-04-01 05:57:42,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295750812] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:42,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:42,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:57:42,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807226540] [2023-04-01 05:57:42,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:42,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:57:42,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:42,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:57:42,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:42,136 INFO L87 Difference]: Start difference. First operand 123 states and 145 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 05:57:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:42,201 INFO L93 Difference]: Finished difference Result 196 states and 230 transitions. [2023-04-01 05:57:42,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:57:42,202 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 05:57:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:42,203 INFO L225 Difference]: With dead ends: 196 [2023-04-01 05:57:42,203 INFO L226 Difference]: Without dead ends: 115 [2023-04-01 05:57:42,204 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 05:57:42,205 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 11 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:42,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 222 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-04-01 05:57:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-04-01 05:57:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 71 states have internal predecessors, (74), 32 states have call successors, (32), 27 states have call predecessors, (32), 23 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2023-04-01 05:57:42,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2023-04-01 05:57:42,213 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 48 [2023-04-01 05:57:42,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:42,213 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2023-04-01 05:57:42,213 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 05:57:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2023-04-01 05:57:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 05:57:42,214 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:42,214 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] [2023-04-01 05:57:42,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:57:42,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:42,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:42,215 INFO L85 PathProgramCache]: Analyzing trace with hash 38920099, now seen corresponding path program 1 times [2023-04-01 05:57:42,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:42,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752991159] [2023-04-01 05:57:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:42,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:42,414 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 05:57:42,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:42,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752991159] [2023-04-01 05:57:42,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752991159] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:42,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:42,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:57:42,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785062728] [2023-04-01 05:57:42,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:42,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:57:42,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:57:42,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:57:42,416 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 05:57:42,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:42,646 INFO L93 Difference]: Finished difference Result 350 states and 421 transitions. [2023-04-01 05:57:42,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:57:42,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 51 [2023-04-01 05:57:42,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:42,649 INFO L225 Difference]: With dead ends: 350 [2023-04-01 05:57:42,649 INFO L226 Difference]: Without dead ends: 257 [2023-04-01 05:57:42,650 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 05:57:42,650 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 281 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:42,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 536 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:57:42,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-04-01 05:57:42,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 249. [2023-04-01 05:57:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 134 states have (on average 1.2835820895522387) internal successors, (172), 158 states have internal predecessors, (172), 65 states have call successors, (65), 55 states have call predecessors, (65), 49 states have return successors, (62), 49 states have call predecessors, (62), 61 states have call successors, (62) [2023-04-01 05:57:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 299 transitions. [2023-04-01 05:57:42,672 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 299 transitions. Word has length 51 [2023-04-01 05:57:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:42,672 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 299 transitions. [2023-04-01 05:57:42,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 05:57:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 299 transitions. [2023-04-01 05:57:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-01 05:57:42,673 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:42,673 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 05:57:42,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:57:42,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:42,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 416418662, now seen corresponding path program 1 times [2023-04-01 05:57:42,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089514265] [2023-04-01 05:57:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:42,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:42,766 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 05:57:42,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:42,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089514265] [2023-04-01 05:57:42,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089514265] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:42,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:42,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:57:42,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921036515] [2023-04-01 05:57:42,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:42,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:57:42,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:42,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:57:42,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:57:42,768 INFO L87 Difference]: Start difference. First operand 249 states and 299 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 05:57:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:42,921 INFO L93 Difference]: Finished difference Result 685 states and 850 transitions. [2023-04-01 05:57:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:57:42,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56 [2023-04-01 05:57:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:42,924 INFO L225 Difference]: With dead ends: 685 [2023-04-01 05:57:42,924 INFO L226 Difference]: Without dead ends: 458 [2023-04-01 05:57:42,925 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 05:57:42,926 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 91 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:42,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 517 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:57:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-04-01 05:57:42,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 440. [2023-04-01 05:57:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 243 states have (on average 1.2880658436213992) internal successors, (313), 284 states have internal predecessors, (313), 112 states have call successors, (112), 92 states have call predecessors, (112), 84 states have return successors, (114), 84 states have call predecessors, (114), 108 states have call successors, (114) [2023-04-01 05:57:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 539 transitions. [2023-04-01 05:57:42,969 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 539 transitions. Word has length 56 [2023-04-01 05:57:42,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:42,969 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 539 transitions. [2023-04-01 05:57:42,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 05:57:42,969 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 539 transitions. [2023-04-01 05:57:42,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-01 05:57:42,974 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:42,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:57:42,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:57:42,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:42,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:42,975 INFO L85 PathProgramCache]: Analyzing trace with hash -81581891, now seen corresponding path program 1 times [2023-04-01 05:57:42,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:42,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249385023] [2023-04-01 05:57:42,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:42,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:57:42,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 05:57:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:57:43,049 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 05:57:43,049 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 05:57:43,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:57:43,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:57:43,054 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 05:57:43,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:57:43,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:57:43 BoogieIcfgContainer [2023-04-01 05:57:43,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:57:43,116 INFO L158 Benchmark]: Toolchain (without parser) took 2989.70ms. Allocated memory was 173.0MB in the beginning and 248.5MB in the end (delta: 75.5MB). Free memory was 129.7MB in the beginning and 184.4MB in the end (delta: -54.7MB). Peak memory consumption was 21.8MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,116 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:57:43,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.04ms. Allocated memory is still 173.0MB. Free memory was 129.7MB in the beginning and 111.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,117 INFO L158 Benchmark]: Boogie Preprocessor took 130.59ms. Allocated memory is still 173.0MB. Free memory was 111.0MB in the beginning and 107.6MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,117 INFO L158 Benchmark]: RCFGBuilder took 799.26ms. Allocated memory is still 173.0MB. Free memory was 107.3MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,117 INFO L158 Benchmark]: TraceAbstraction took 1595.78ms. Allocated memory was 173.0MB in the beginning and 248.5MB in the end (delta: 75.5MB). Free memory was 104.1MB in the beginning and 184.4MB in the end (delta: -80.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:57:43,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 451.04ms. Allocated memory is still 173.0MB. Free memory was 129.7MB in the beginning and 111.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 130.59ms. Allocated memory is still 173.0MB. Free memory was 111.0MB in the beginning and 107.6MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 799.26ms. Allocated memory is still 173.0MB. Free memory was 107.3MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1595.78ms. Allocated memory was 173.0MB in the beginning and 248.5MB in the end (delta: 75.5MB). Free memory was 104.1MB in the beginning and 184.4MB in the end (delta: -80.3MB). There was no memory consumed. 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int pumpRunning = 0; [L640] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; [L140] int retValue_acc ; [L141] 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] [L145] 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] [L146] 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] [L147] 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] [L189] int retValue_acc ; [L192] retValue_acc = 1 [L193] return (retValue_acc); [L147] 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] [L147] tmp = valid_product() [L149] 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] [L151] 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] [L152] 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] [L131] 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] [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] 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] [L575] 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] [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] 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] [L587] 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] [L869] COND TRUE waterLevel < 2 [L870] waterLevel = waterLevel + 1 [L587] 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] [L593] tmp___0 = __VERIFIER_nondet_int() [L595] 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] [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND FALSE !(\read(tmp___2)) [L609] tmp___1 = __VERIFIER_nondet_int() [L611] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L613] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L845] systemActive = 0 [L613] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L620] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L654] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L662] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L946] int tmp ; [L947] int tmp___0 ; [L948] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); [L952] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] tmp = isMethaneLevelCritical() [L954] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L958] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); [L958] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L958] tmp___0 = getWaterLevel() [L960] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L962] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L771] int retValue_acc ; [L774] retValue_acc = pumpRunning [L775] return (retValue_acc); [L962] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L962] tmp___1 = isPumpRunning() [L964] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L968] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 195 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 389 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 1414 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 898 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 455 IncrementalHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 516 mSDtfsCounter, 455 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=440occurred 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 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 05:57:43,147 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...