/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_spec4_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:05:10,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:05:10,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:05:10,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:05:10,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:05:10,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:05:10,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:05:10,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:05:10,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:05:10,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:05:10,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:05:10,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:05:10,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:05:10,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:05:10,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:05:10,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:05:10,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:05:10,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:05:10,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:05:10,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:05:10,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:05:10,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:05:10,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:05:10,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:05:10,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:05:10,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:05:10,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:05:10,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:05:10,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:05:10,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:05:10,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:05:10,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:05:10,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:05:10,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:05:10,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:05:10,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:05:10,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:05:10,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:05:10,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:05:10,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:05:10,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:05:10,642 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 [2023-04-03 01:05:10,670 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:05:10,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:05:10,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:05:10,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:05:10,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:05:10,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:05:10,672 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:05:10,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:05:10,672 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:05:10,672 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:05:10,672 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:05:10,673 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:05:10,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:05:10,673 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:05:10,674 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:05:10,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:05:10,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:05:10,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:05:10,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:05:10,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:05:10,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:05:11,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:05:11,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:05:11,031 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:05:11,031 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:05:11,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2023-04-03 01:05:12,102 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:05:12,299 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:05:12,306 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2023-04-03 01:05:12,313 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7ae6293/303523c3bd82465d9e33973ba83931d4/FLAGac2ddaee7 [2023-04-03 01:05:12,323 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7ae6293/303523c3bd82465d9e33973ba83931d4 [2023-04-03 01:05:12,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:05:12,325 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:05:12,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:05:12,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:05:12,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:05:12,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4235b333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12, skipping insertion in model container [2023-04-03 01:05:12,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:05:12,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:05:12,478 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6627,6640] [2023-04-03 01:05:12,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:05:12,517 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:05:12,533 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6627,6640] [2023-04-03 01:05:12,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:05:12,564 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:05:12,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12 WrapperNode [2023-04-03 01:05:12,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:05:12,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:05:12,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:05:12,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:05:12,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:05:12,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:05:12,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:05:12,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:05:12,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (1/1) ... [2023-04-03 01:05:12,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:05:12,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:05:12,650 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) [2023-04-03 01:05:12,654 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 [2023-04-03 01:05:12,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:05:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:05:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-03 01:05:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 01:05:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-03 01:05:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:05:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:05:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:05:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:05:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:05:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:05:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:05:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:05:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-03 01:05:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:05:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:05:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:05:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:05:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:05:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:05:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:05:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:05:12,679 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:05:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:05:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:05:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-03 01:05:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:05:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:05:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:05:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:05:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:05:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:05:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:05:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:05:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:05:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:05:12,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:05:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:05:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:05:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:05:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:05:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:05:12,807 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:05:12,808 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:05:13,148 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:05:13,235 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:05:13,236 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:05:13,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:05:13 BoogieIcfgContainer [2023-04-03 01:05:13,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:05:13,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:05:13,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:05:13,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:05:13,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:05:12" (1/3) ... [2023-04-03 01:05:13,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cf06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:05:13, skipping insertion in model container [2023-04-03 01:05:13,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:05:12" (2/3) ... [2023-04-03 01:05:13,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cf06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:05:13, skipping insertion in model container [2023-04-03 01:05:13,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:05:13" (3/3) ... [2023-04-03 01:05:13,243 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2023-04-03 01:05:13,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:05:13,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:05:13,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:05:13,291 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;@15021fe3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:05:13,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:05:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 73 states have internal predecessors, (77), 43 states have call successors, (43), 27 states have call predecessors, (43), 27 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2023-04-03 01:05:13,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 01:05:13,300 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:13,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:05:13,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:13,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:13,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1632771971, now seen corresponding path program 1 times [2023-04-03 01:05:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:13,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746098891] [2023-04-03 01:05:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:13,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:05:13,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:13,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746098891] [2023-04-03 01:05:13,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746098891] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:13,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:05:13,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:05:13,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041522820] [2023-04-03 01:05:13,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:13,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:05:13,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:13,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:05:13,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:05:13,469 INFO L87 Difference]: Start difference. First operand has 133 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 73 states have internal predecessors, (77), 43 states have call successors, (43), 27 states have call predecessors, (43), 27 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:05:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:05:13,518 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2023-04-03 01:05:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:05:13,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 01:05:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:05:13,525 INFO L225 Difference]: With dead ends: 199 [2023-04-03 01:05:13,526 INFO L226 Difference]: Without dead ends: 100 [2023-04-03 01:05:13,528 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 [2023-04-03 01:05:13,530 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:05:13,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:05:13,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-03 01:05:13,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-04-03 01:05:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 61 states have internal predecessors, (63), 28 states have call successors, (28), 25 states have call predecessors, (28), 20 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-03 01:05:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2023-04-03 01:05:13,558 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 42 [2023-04-03 01:05:13,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:05:13,558 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2023-04-03 01:05:13,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:05:13,558 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2023-04-03 01:05:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 01:05:13,560 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:13,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:05:13,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:05:13,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:13,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:13,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1023924806, now seen corresponding path program 1 times [2023-04-03 01:05:13,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:13,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357051021] [2023-04-03 01:05:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:13,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:05:13,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:13,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357051021] [2023-04-03 01:05:13,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357051021] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:13,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:05:13,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:05:13,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193130775] [2023-04-03 01:05:13,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:13,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:05:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:13,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:05:13,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:05:13,634 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:05:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:05:13,661 INFO L93 Difference]: Finished difference Result 145 states and 164 transitions. [2023-04-03 01:05:13,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:05:13,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 01:05:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:05:13,663 INFO L225 Difference]: With dead ends: 145 [2023-04-03 01:05:13,663 INFO L226 Difference]: Without dead ends: 92 [2023-04-03 01:05:13,663 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 [2023-04-03 01:05:13,664 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:05:13,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 161 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:05:13,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-04-03 01:05:13,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-04-03 01:05:13,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 56 states have internal predecessors, (57), 25 states have call successors, (25), 24 states have call predecessors, (25), 20 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-03 01:05:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2023-04-03 01:05:13,672 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 43 [2023-04-03 01:05:13,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:05:13,672 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2023-04-03 01:05:13,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 01:05:13,673 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2023-04-03 01:05:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:05:13,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:13,674 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] [2023-04-03 01:05:13,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:05:13,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:13,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:13,675 INFO L85 PathProgramCache]: Analyzing trace with hash 862595848, now seen corresponding path program 1 times [2023-04-03 01:05:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:13,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180778566] [2023-04-03 01:05:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:05:13,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:13,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180778566] [2023-04-03 01:05:13,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180778566] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:13,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:05:13,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 01:05:13,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622369925] [2023-04-03 01:05:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:13,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 01:05:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 01:05:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 01:05:13,837 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:05:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:05:14,113 INFO L93 Difference]: Finished difference Result 277 states and 325 transitions. [2023-04-03 01:05:14,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:05:14,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2023-04-03 01:05:14,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:05:14,118 INFO L225 Difference]: With dead ends: 277 [2023-04-03 01:05:14,118 INFO L226 Difference]: Without dead ends: 207 [2023-04-03 01:05:14,124 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 [2023-04-03 01:05:14,126 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 197 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:05:14,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 402 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:05:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-04-03 01:05:14,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 185. [2023-04-03 01:05:14,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 100 states have (on average 1.27) internal successors, (127), 117 states have internal predecessors, (127), 45 states have call successors, (45), 43 states have call predecessors, (45), 39 states have return successors, (42), 37 states have call predecessors, (42), 41 states have call successors, (42) [2023-04-03 01:05:14,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 214 transitions. [2023-04-03 01:05:14,150 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 214 transitions. Word has length 47 [2023-04-03 01:05:14,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:05:14,150 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 214 transitions. [2023-04-03 01:05:14,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 01:05:14,151 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 214 transitions. [2023-04-03 01:05:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 01:05:14,152 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:14,152 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] [2023-04-03 01:05:14,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:05:14,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:14,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash 215533973, now seen corresponding path program 1 times [2023-04-03 01:05:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:14,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611354982] [2023-04-03 01:05:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:14,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:05:14,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:14,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611354982] [2023-04-03 01:05:14,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611354982] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:14,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:05:14,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-03 01:05:14,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345727090] [2023-04-03 01:05:14,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:14,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-03 01:05:14,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:14,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-03 01:05:14,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-04-03 01:05:14,330 INFO L87 Difference]: Start difference. First operand 185 states and 214 transitions. Second operand has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:05:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:05:14,611 INFO L93 Difference]: Finished difference Result 635 states and 778 transitions. [2023-04-03 01:05:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-03 01:05:14,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-04-03 01:05:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:05:14,614 INFO L225 Difference]: With dead ends: 635 [2023-04-03 01:05:14,615 INFO L226 Difference]: Without dead ends: 472 [2023-04-03 01:05:14,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-04-03 01:05:14,616 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 169 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:05:14,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 562 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:05:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-04-03 01:05:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 448. [2023-04-03 01:05:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 253 states have (on average 1.2727272727272727) internal successors, (322), 293 states have internal predecessors, (322), 102 states have call successors, (102), 96 states have call predecessors, (102), 92 states have return successors, (109), 86 states have call predecessors, (109), 98 states have call successors, (109) [2023-04-03 01:05:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 533 transitions. [2023-04-03 01:05:14,653 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 533 transitions. Word has length 51 [2023-04-03 01:05:14,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:05:14,653 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 533 transitions. [2023-04-03 01:05:14,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-03 01:05:14,653 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 533 transitions. [2023-04-03 01:05:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-03 01:05:14,656 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:14,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:05:14,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:05:14,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:14,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:14,657 INFO L85 PathProgramCache]: Analyzing trace with hash 189838381, now seen corresponding path program 1 times [2023-04-03 01:05:14,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:14,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409241879] [2023-04-03 01:05:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:14,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:05:14,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:14,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409241879] [2023-04-03 01:05:14,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409241879] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:14,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:05:14,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 01:05:14,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048397514] [2023-04-03 01:05:14,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:14,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 01:05:14,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:14,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 01:05:14,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 01:05:14,777 INFO L87 Difference]: Start difference. First operand 448 states and 533 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:05:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:05:14,935 INFO L93 Difference]: Finished difference Result 1193 states and 1555 transitions. [2023-04-03 01:05:14,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 01:05:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 54 [2023-04-03 01:05:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:05:14,939 INFO L225 Difference]: With dead ends: 1193 [2023-04-03 01:05:14,939 INFO L226 Difference]: Without dead ends: 767 [2023-04-03 01:05:14,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 01:05:14,941 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 125 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:05:14,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 98 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:05:14,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-04-03 01:05:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 662. [2023-04-03 01:05:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 385 states have (on average 1.2337662337662338) internal successors, (475), 425 states have internal predecessors, (475), 137 states have call successors, (137), 135 states have call predecessors, (137), 139 states have return successors, (178), 136 states have call predecessors, (178), 133 states have call successors, (178) [2023-04-03 01:05:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 790 transitions. [2023-04-03 01:05:14,984 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 790 transitions. Word has length 54 [2023-04-03 01:05:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:05:14,984 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 790 transitions. [2023-04-03 01:05:14,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-03 01:05:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 790 transitions. [2023-04-03 01:05:14,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-04-03 01:05:14,988 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:14,988 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:05:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:05:14,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:14,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1441182508, now seen corresponding path program 1 times [2023-04-03 01:05:14,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:14,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900826898] [2023-04-03 01:05:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:14,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:05:15,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:15,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900826898] [2023-04-03 01:05:15,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900826898] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:05:15,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559260152] [2023-04-03 01:05:15,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:15,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:05:15,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:05:15,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:05:15,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 01:05:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:15,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:05:15,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:05:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-03 01:05:15,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:05:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-03 01:05:15,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559260152] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:05:15,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [919975071] [2023-04-03 01:05:16,011 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-04-03 01:05:16,011 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:05:16,015 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:05:16,018 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:05:16,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:05:16,195 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:05:16,225 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:05:16,343 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:05:16,353 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:05:16,355 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:05:16,356 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:05:19,797 INFO L197 IcfgInterpreter]: Interpreting procedure stopSystem with input of size 37 for LOIs [2023-04-03 01:05:19,806 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 36 for LOIs [2023-04-03 01:05:19,812 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2023-04-03 01:05:19,937 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 22 for LOIs [2023-04-03 01:05:19,973 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2023-04-03 01:05:19,975 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 22 for LOIs [2023-04-03 01:05:19,976 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:05:19,978 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:05:19,979 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:05:22,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [919975071] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:22,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:05:22,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [7, 14, 12] total 62 [2023-04-03 01:05:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101777290] [2023-04-03 01:05:22,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:22,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-03 01:05:22,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:22,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-03 01:05:22,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=3379, Unknown=0, NotChecked=0, Total=3782 [2023-04-03 01:05:22,406 INFO L87 Difference]: Start difference. First operand 662 states and 790 transitions. Second operand has 36 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 11 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2023-04-03 01:05:32,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:05:32,838 INFO L93 Difference]: Finished difference Result 1774 states and 2213 transitions. [2023-04-03 01:05:32,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2023-04-03 01:05:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 11 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) Word has length 79 [2023-04-03 01:05:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:05:32,849 INFO L225 Difference]: With dead ends: 1774 [2023-04-03 01:05:32,849 INFO L226 Difference]: Without dead ends: 1134 [2023-04-03 01:05:32,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 186 SyntacticMatches, 4 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6524 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=2724, Invalid=17868, Unknown=0, NotChecked=0, Total=20592 [2023-04-03 01:05:32,858 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 784 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 3999 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 4618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 3999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 01:05:32,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 265 Invalid, 4618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 3999 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 01:05:32,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2023-04-03 01:05:32,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 889. [2023-04-03 01:05:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 526 states have (on average 1.226235741444867) internal successors, (645), 576 states have internal predecessors, (645), 180 states have call successors, (180), 176 states have call predecessors, (180), 182 states have return successors, (229), 181 states have call predecessors, (229), 176 states have call successors, (229) [2023-04-03 01:05:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1054 transitions. [2023-04-03 01:05:32,947 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1054 transitions. Word has length 79 [2023-04-03 01:05:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:05:32,948 INFO L495 AbstractCegarLoop]: Abstraction has 889 states and 1054 transitions. [2023-04-03 01:05:32,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 11 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2023-04-03 01:05:32,949 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1054 transitions. [2023-04-03 01:05:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-04-03 01:05:32,952 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:05:32,952 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:05:32,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 01:05:33,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-04-03 01:05:33,158 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:05:33,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:05:33,158 INFO L85 PathProgramCache]: Analyzing trace with hash -843370170, now seen corresponding path program 1 times [2023-04-03 01:05:33,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:05:33,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67643786] [2023-04-03 01:05:33,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:33,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:05:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:05:33,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:05:33,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67643786] [2023-04-03 01:05:33,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67643786] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:05:33,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114136763] [2023-04-03 01:05:33,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:05:33,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:05:33,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:05:33,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:05:33,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 01:05:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:05:33,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:05:33,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:05:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-03 01:05:33,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:05:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-03 01:05:33,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114136763] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:05:33,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2114479078] [2023-04-03 01:05:33,957 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2023-04-03 01:05:33,957 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:05:33,957 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:05:33,957 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:05:33,957 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:05:34,016 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:05:34,033 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:05:34,117 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:05:34,122 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:05:34,125 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:05:34,127 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:05:39,673 INFO L197 IcfgInterpreter]: Interpreting procedure stopSystem with input of size 49 for LOIs [2023-04-03 01:05:39,686 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 40 for LOIs [2023-04-03 01:05:39,691 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2023-04-03 01:05:39,760 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 24 for LOIs [2023-04-03 01:05:39,786 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 26 for LOIs [2023-04-03 01:05:39,788 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 24 for LOIs [2023-04-03 01:05:39,789 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 39 for LOIs [2023-04-03 01:05:39,793 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:05:39,795 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:05:39,796 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:05:42,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2114479078] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:05:42,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:05:42,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [7, 14, 12] total 65 [2023-04-03 01:05:42,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303082858] [2023-04-03 01:05:42,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:05:42,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-04-03 01:05:42,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:05:42,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-04-03 01:05:42,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=3744, Unknown=0, NotChecked=0, Total=4160 [2023-04-03 01:05:42,981 INFO L87 Difference]: Start difference. First operand 889 states and 1054 transitions. Second operand has 39 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 12 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2023-04-03 01:06:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:12,659 INFO L93 Difference]: Finished difference Result 2975 states and 4086 transitions. [2023-04-03 01:06:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2023-04-03 01:06:12,659 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 12 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) Word has length 82 [2023-04-03 01:06:12,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:12,682 INFO L225 Difference]: With dead ends: 2975 [2023-04-03 01:06:12,682 INFO L226 Difference]: Without dead ends: 2329 [2023-04-03 01:06:12,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25412 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=6748, Invalid=62684, Unknown=0, NotChecked=0, Total=69432 [2023-04-03 01:06:12,702 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 2274 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 6014 mSolverCounterSat, 1925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2281 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 7939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1925 IncrementalHoareTripleChecker+Valid, 6014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:12,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2281 Valid, 717 Invalid, 7939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1925 Valid, 6014 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-03 01:06:12,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-04-03 01:06:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 907. [2023-04-03 01:06:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 532 states have (on average 1.2236842105263157) internal successors, (651), 588 states have internal predecessors, (651), 186 states have call successors, (186), 182 states have call predecessors, (186), 188 states have return successors, (235), 187 states have call predecessors, (235), 182 states have call successors, (235) [2023-04-03 01:06:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1072 transitions. [2023-04-03 01:06:12,926 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1072 transitions. Word has length 82 [2023-04-03 01:06:12,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:12,926 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1072 transitions. [2023-04-03 01:06:12,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 12 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2023-04-03 01:06:12,927 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1072 transitions. [2023-04-03 01:06:12,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-03 01:06:12,928 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:12,928 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:12,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-03 01:06:13,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-04-03 01:06:13,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:13,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:13,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1831942901, now seen corresponding path program 1 times [2023-04-03 01:06:13,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:13,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406939970] [2023-04-03 01:06:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:13,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 01:06:13,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:13,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406939970] [2023-04-03 01:06:13,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406939970] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:13,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:13,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-03 01:06:13,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424895787] [2023-04-03 01:06:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:13,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 01:06:13,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:13,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 01:06:13,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:06:13,213 INFO L87 Difference]: Start difference. First operand 907 states and 1072 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-04-03 01:06:13,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:13,568 INFO L93 Difference]: Finished difference Result 1592 states and 1908 transitions. [2023-04-03 01:06:13,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 01:06:13,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 96 [2023-04-03 01:06:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:13,571 INFO L225 Difference]: With dead ends: 1592 [2023-04-03 01:06:13,571 INFO L226 Difference]: Without dead ends: 946 [2023-04-03 01:06:13,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-03 01:06:13,573 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 158 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:13,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 453 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 01:06:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2023-04-03 01:06:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 887. [2023-04-03 01:06:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 524 states have (on average 1.2061068702290076) internal successors, (632), 578 states have internal predecessors, (632), 178 states have call successors, (178), 176 states have call predecessors, (178), 184 states have return successors, (198), 181 states have call predecessors, (198), 174 states have call successors, (198) [2023-04-03 01:06:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1008 transitions. [2023-04-03 01:06:13,670 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1008 transitions. Word has length 96 [2023-04-03 01:06:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:13,670 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1008 transitions. [2023-04-03 01:06:13,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-04-03 01:06:13,670 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1008 transitions. [2023-04-03 01:06:13,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-03 01:06:13,671 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:13,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:13,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 01:06:13,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:13,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1535915487, now seen corresponding path program 1 times [2023-04-03 01:06:13,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:13,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920544756] [2023-04-03 01:06:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 01:06:13,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:13,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920544756] [2023-04-03 01:06:13,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920544756] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:06:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304627672] [2023-04-03 01:06:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:13,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:13,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:13,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:06:13,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 01:06:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:13,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-03 01:06:13,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:06:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:06:14,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 01:06:14,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304627672] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:14,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 01:06:14,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26 [2023-04-03 01:06:14,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51618123] [2023-04-03 01:06:14,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:14,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:06:14,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:14,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:06:14,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-04-03 01:06:14,239 INFO L87 Difference]: Start difference. First operand 887 states and 1008 transitions. Second operand has 14 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (23), 5 states have call predecessors, (23), 7 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-04-03 01:06:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:15,072 INFO L93 Difference]: Finished difference Result 1606 states and 1862 transitions. [2023-04-03 01:06:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-03 01:06:15,073 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (23), 5 states have call predecessors, (23), 7 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 97 [2023-04-03 01:06:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:15,076 INFO L225 Difference]: With dead ends: 1606 [2023-04-03 01:06:15,076 INFO L226 Difference]: Without dead ends: 980 [2023-04-03 01:06:15,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=1732, Unknown=0, NotChecked=0, Total=1980 [2023-04-03 01:06:15,079 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 216 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:15,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 375 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 01:06:15,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2023-04-03 01:06:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 890. [2023-04-03 01:06:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 531 states have (on average 1.1996233521657251) internal successors, (637), 581 states have internal predecessors, (637), 184 states have call successors, (184), 184 states have call predecessors, (184), 174 states have return successors, (193), 169 states have call predecessors, (193), 180 states have call successors, (193) [2023-04-03 01:06:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1014 transitions. [2023-04-03 01:06:15,196 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1014 transitions. Word has length 97 [2023-04-03 01:06:15,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:15,196 INFO L495 AbstractCegarLoop]: Abstraction has 890 states and 1014 transitions. [2023-04-03 01:06:15,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (23), 5 states have call predecessors, (23), 7 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-04-03 01:06:15,196 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1014 transitions. [2023-04-03 01:06:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-03 01:06:15,198 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:15,198 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:15,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 01:06:15,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:15,406 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:15,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:15,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2079902814, now seen corresponding path program 1 times [2023-04-03 01:06:15,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:15,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482764492] [2023-04-03 01:06:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:06:15,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:15,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482764492] [2023-04-03 01:06:15,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482764492] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:06:15,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156470161] [2023-04-03 01:06:15,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:15,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:15,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:15,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:06:15,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 01:06:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:15,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:06:15,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:06:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-03 01:06:15,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:06:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-03 01:06:16,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156470161] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:06:16,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [115763707] [2023-04-03 01:06:16,205 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2023-04-03 01:06:16,205 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:06:16,205 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:06:16,206 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:06:16,206 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:06:16,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:06:16,279 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:06:16,338 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:06:16,344 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:06:16,345 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:06:16,346 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:06:20,416 INFO L197 IcfgInterpreter]: Interpreting procedure stopSystem with input of size 37 for LOIs [2023-04-03 01:06:20,422 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 36 for LOIs [2023-04-03 01:06:20,425 INFO L197 IcfgInterpreter]: Interpreting procedure startSystem with input of size 35 for LOIs [2023-04-03 01:06:20,427 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-04-03 01:06:20,554 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 25 for LOIs [2023-04-03 01:06:20,610 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 28 for LOIs [2023-04-03 01:06:20,612 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 25 for LOIs [2023-04-03 01:06:20,615 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:06:20,617 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:06:20,618 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 30 for LOIs [2023-04-03 01:06:20,650 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 28 for LOIs [2023-04-03 01:06:20,695 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 28 for LOIs [2023-04-03 01:06:20,698 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 26 for LOIs [2023-04-03 01:06:20,699 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:06:23,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [115763707] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:23,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:06:23,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [7, 14, 12] total 72 [2023-04-03 01:06:23,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441640729] [2023-04-03 01:06:23,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:23,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-04-03 01:06:23,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-04-03 01:06:23,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=4621, Unknown=0, NotChecked=0, Total=5112 [2023-04-03 01:06:23,890 INFO L87 Difference]: Start difference. First operand 890 states and 1014 transitions. Second operand has 46 states, 30 states have (on average 1.5) internal successors, (45), 36 states have internal predecessors, (45), 16 states have call successors, (20), 12 states have call predecessors, (20), 14 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2023-04-03 01:06:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:35,846 INFO L93 Difference]: Finished difference Result 1962 states and 2296 transitions. [2023-04-03 01:06:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-04-03 01:06:35,846 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 30 states have (on average 1.5) internal successors, (45), 36 states have internal predecessors, (45), 16 states have call successors, (20), 12 states have call predecessors, (20), 14 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 98 [2023-04-03 01:06:35,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:35,878 INFO L225 Difference]: With dead ends: 1962 [2023-04-03 01:06:35,879 INFO L226 Difference]: Without dead ends: 1412 [2023-04-03 01:06:35,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 230 SyntacticMatches, 9 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8971 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=3549, Invalid=24843, Unknown=0, NotChecked=0, Total=28392 [2023-04-03 01:06:35,882 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1140 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 4919 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 4919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:35,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 350 Invalid, 5764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 4919 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-03 01:06:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2023-04-03 01:06:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1204. [2023-04-03 01:06:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 733 states have (on average 1.199181446111869) internal successors, (879), 795 states have internal predecessors, (879), 242 states have call successors, (242), 242 states have call predecessors, (242), 228 states have return successors, (255), 223 states have call predecessors, (255), 238 states have call successors, (255) [2023-04-03 01:06:36,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1376 transitions. [2023-04-03 01:06:36,096 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1376 transitions. Word has length 98 [2023-04-03 01:06:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:36,097 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 1376 transitions. [2023-04-03 01:06:36,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 30 states have (on average 1.5) internal successors, (45), 36 states have internal predecessors, (45), 16 states have call successors, (20), 12 states have call predecessors, (20), 14 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2023-04-03 01:06:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1376 transitions. [2023-04-03 01:06:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-03 01:06:36,098 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:36,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:36,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 01:06:36,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:36,304 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:36,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:36,306 INFO L85 PathProgramCache]: Analyzing trace with hash 452844466, now seen corresponding path program 1 times [2023-04-03 01:06:36,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:36,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894866627] [2023-04-03 01:06:36,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:36,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 01:06:36,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:36,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894866627] [2023-04-03 01:06:36,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894866627] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:36,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:36,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-03 01:06:36,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264931393] [2023-04-03 01:06:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:36,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-03 01:06:36,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-03 01:06:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-03 01:06:36,492 INFO L87 Difference]: Start difference. First operand 1204 states and 1376 transitions. Second operand has 14 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (18), 7 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 01:06:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:36,817 INFO L93 Difference]: Finished difference Result 1701 states and 1965 transitions. [2023-04-03 01:06:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 01:06:36,818 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (18), 7 states have call predecessors, (18), 3 states have call successors, (18) Word has length 101 [2023-04-03 01:06:36,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:36,821 INFO L225 Difference]: With dead ends: 1701 [2023-04-03 01:06:36,821 INFO L226 Difference]: Without dead ends: 1291 [2023-04-03 01:06:36,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-04-03 01:06:36,823 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 167 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:36,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 844 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:06:36,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-04-03 01:06:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1238. [2023-04-03 01:06:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 755 states have (on average 1.1986754966887416) internal successors, (905), 820 states have internal predecessors, (905), 248 states have call successors, (248), 248 states have call predecessors, (248), 234 states have return successors, (262), 228 states have call predecessors, (262), 244 states have call successors, (262) [2023-04-03 01:06:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1415 transitions. [2023-04-03 01:06:37,010 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1415 transitions. Word has length 101 [2023-04-03 01:06:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:37,010 INFO L495 AbstractCegarLoop]: Abstraction has 1238 states and 1415 transitions. [2023-04-03 01:06:37,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 6 states have return successors, (18), 7 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-03 01:06:37,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1415 transitions. [2023-04-03 01:06:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-04-03 01:06:37,014 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:37,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:37,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 01:06:37,014 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:37,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:37,015 INFO L85 PathProgramCache]: Analyzing trace with hash 942650462, now seen corresponding path program 1 times [2023-04-03 01:06:37,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:37,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807305999] [2023-04-03 01:06:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:37,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-03 01:06:37,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807305999] [2023-04-03 01:06:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807305999] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:06:37,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:06:37,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:06:37,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988396627] [2023-04-03 01:06:37,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:06:37,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:06:37,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:06:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:06:37,074 INFO L87 Difference]: Start difference. First operand 1238 states and 1415 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-03 01:06:37,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:37,336 INFO L93 Difference]: Finished difference Result 1255 states and 1431 transitions. [2023-04-03 01:06:37,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 01:06:37,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 102 [2023-04-03 01:06:37,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:37,339 INFO L225 Difference]: With dead ends: 1255 [2023-04-03 01:06:37,339 INFO L226 Difference]: Without dead ends: 1252 [2023-04-03 01:06:37,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-03 01:06:37,340 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 77 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:37,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 349 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:06:37,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2023-04-03 01:06:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1238. [2023-04-03 01:06:37,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 755 states have (on average 1.190728476821192) internal successors, (899), 820 states have internal predecessors, (899), 248 states have call successors, (248), 248 states have call predecessors, (248), 234 states have return successors, (262), 228 states have call predecessors, (262), 244 states have call successors, (262) [2023-04-03 01:06:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1409 transitions. [2023-04-03 01:06:37,526 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1409 transitions. Word has length 102 [2023-04-03 01:06:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:37,526 INFO L495 AbstractCegarLoop]: Abstraction has 1238 states and 1409 transitions. [2023-04-03 01:06:37,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-03 01:06:37,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1409 transitions. [2023-04-03 01:06:37,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-03 01:06:37,528 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:37,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:37,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 01:06:37,528 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:37,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2047086854, now seen corresponding path program 1 times [2023-04-03 01:06:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:37,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645387569] [2023-04-03 01:06:37,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:37,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-03 01:06:37,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:06:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645387569] [2023-04-03 01:06:37,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645387569] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 01:06:37,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797519687] [2023-04-03 01:06:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:37,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 01:06:37,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:06:37,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 01:06:37,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 01:06:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:06:37,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-03 01:06:37,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 01:06:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-03 01:06:37,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 01:06:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-03 01:06:38,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797519687] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 01:06:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1110592840] [2023-04-03 01:06:38,289 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2023-04-03 01:06:38,289 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 01:06:38,289 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 01:06:38,289 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 01:06:38,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 01:06:38,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-03 01:06:38,415 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-04-03 01:06:38,531 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-04-03 01:06:38,537 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-03 01:06:38,538 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-03 01:06:38,539 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-04-03 01:06:39,668 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-04-03 01:06:39,671 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-04-03 01:06:39,739 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-04-03 01:06:39,762 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2023-04-03 01:06:39,763 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-03 01:06:39,764 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-04-03 01:06:39,766 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-04-03 01:06:39,768 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-03 01:06:39,769 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-03 01:06:39,770 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 23 for LOIs [2023-04-03 01:06:39,842 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-03 01:06:39,884 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-03 01:06:39,886 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-03 01:06:39,889 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-04-03 01:06:39,889 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 01:06:42,226 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38202#(and (<= 1 |#StackHeapBarrier|) (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 2147483647) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-03 01:06:42,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 01:06:42,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 01:06:42,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 17] total 34 [2023-04-03 01:06:42,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851243772] [2023-04-03 01:06:42,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 01:06:42,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-04-03 01:06:42,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:06:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-04-03 01:06:42,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=5828, Unknown=0, NotChecked=0, Total=6480 [2023-04-03 01:06:42,229 INFO L87 Difference]: Start difference. First operand 1238 states and 1409 transitions. Second operand has 34 states, 23 states have (on average 4.869565217391305) internal successors, (112), 27 states have internal predecessors, (112), 10 states have call successors, (50), 12 states have call predecessors, (50), 18 states have return successors, (43), 16 states have call predecessors, (43), 10 states have call successors, (43) [2023-04-03 01:06:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:06:43,996 INFO L93 Difference]: Finished difference Result 3868 states and 4847 transitions. [2023-04-03 01:06:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-04-03 01:06:43,997 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 23 states have (on average 4.869565217391305) internal successors, (112), 27 states have internal predecessors, (112), 10 states have call successors, (50), 12 states have call predecessors, (50), 18 states have return successors, (43), 16 states have call predecessors, (43), 10 states have call successors, (43) Word has length 100 [2023-04-03 01:06:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:06:44,008 INFO L225 Difference]: With dead ends: 3868 [2023-04-03 01:06:44,008 INFO L226 Difference]: Without dead ends: 3280 [2023-04-03 01:06:44,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5485 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1364, Invalid=12442, Unknown=0, NotChecked=0, Total=13806 [2023-04-03 01:06:44,012 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 1101 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 961 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 961 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 01:06:44,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 954 Invalid, 3116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [961 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 01:06:44,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2023-04-03 01:06:44,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 2401. [2023-04-03 01:06:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 1433 states have (on average 1.1814375436147941) internal successors, (1693), 1561 states have internal predecessors, (1693), 499 states have call successors, (499), 499 states have call predecessors, (499), 468 states have return successors, (571), 448 states have call predecessors, (571), 495 states have call successors, (571) [2023-04-03 01:06:44,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 2763 transitions. [2023-04-03 01:06:44,278 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 2763 transitions. Word has length 100 [2023-04-03 01:06:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:06:44,278 INFO L495 AbstractCegarLoop]: Abstraction has 2401 states and 2763 transitions. [2023-04-03 01:06:44,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 23 states have (on average 4.869565217391305) internal successors, (112), 27 states have internal predecessors, (112), 10 states have call successors, (50), 12 states have call predecessors, (50), 18 states have return successors, (43), 16 states have call predecessors, (43), 10 states have call successors, (43) [2023-04-03 01:06:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 2763 transitions. [2023-04-03 01:06:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-03 01:06:44,281 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:06:44,281 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:44,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-03 01:06:44,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-03 01:06:44,489 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:06:44,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:06:44,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1547507728, now seen corresponding path program 2 times [2023-04-03 01:06:44,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:06:44,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489086835] [2023-04-03 01:06:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:06:44,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:06:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:06:44,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-03 01:06:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:06:44,548 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-03 01:06:44,548 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-03 01:06:44,549 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:06:44,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-03 01:06:44,552 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 01:06:44,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:06:44,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:06:44 BoogieIcfgContainer [2023-04-03 01:06:44,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:06:44,619 INFO L158 Benchmark]: Toolchain (without parser) took 92293.17ms. Allocated memory was 213.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 164.1MB in the beginning and 990.9MB in the end (delta: -826.8MB). Peak memory consumption was 266.3MB. Max. memory is 8.0GB. [2023-04-03 01:06:44,619 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 178.3MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:06:44,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.00ms. Allocated memory is still 213.9MB. Free memory was 163.6MB in the beginning and 145.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-03 01:06:44,619 INFO L158 Benchmark]: Boogie Preprocessor took 48.58ms. Allocated memory is still 213.9MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 01:06:44,620 INFO L158 Benchmark]: RCFGBuilder took 623.19ms. Allocated memory is still 213.9MB. Free memory was 142.1MB in the beginning and 150.6MB in the end (delta: -8.6MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2023-04-03 01:06:44,620 INFO L158 Benchmark]: TraceAbstraction took 91379.17ms. Allocated memory was 213.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 150.1MB in the beginning and 990.9MB in the end (delta: -840.8MB). Peak memory consumption was 251.8MB. Max. memory is 8.0GB. [2023-04-03 01:06:44,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 178.3MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.00ms. Allocated memory is still 213.9MB. Free memory was 163.6MB in the beginning and 145.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.58ms. Allocated memory is still 213.9MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 623.19ms. Allocated memory is still 213.9MB. Free memory was 142.1MB in the beginning and 150.6MB in the end (delta: -8.6MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. * TraceAbstraction took 91379.17ms. Allocated memory was 213.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 150.1MB in the beginning and 990.9MB in the end (delta: -840.8MB). Peak memory consumption was 251.8MB. 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: 447]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L621] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int waterLevel = 1; [L820] int methaneLevelCritical = 0; [L385] int retValue_acc ; [L386] 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] [L390] 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] [L391] 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] [L392] 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] [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); [L392] 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] [L392] tmp = valid_product() [L394] 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] [L396] 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] [L397] 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] [L376] 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] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] 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] [L66] 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] [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] 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] [L78] 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] [L837] COND TRUE waterLevel < 2 [L838] waterLevel = waterLevel + 1 [L78] 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] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] 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] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] 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] [L113] 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] [L141] 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] [L148] 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] [L150] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L173] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L267] int retValue_acc ; [L268] int tmp ; [L269] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int retValue_acc ; [L902] COND FALSE !(waterLevel < 2) [L906] retValue_acc = 0 [L907] return (retValue_acc); [L273] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] tmp = isHighWaterSensorDry() [L275] COND FALSE !(\read(tmp)) [L278] tmp___0 = 1 [L280] retValue_acc = tmp___0 [L281] return (retValue_acc); [L175] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] tmp = isHighWaterLevel() [L177] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L179] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L198] pumpRunning = 1 [L179] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L150] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L156] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L914] int tmp ; [L915] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L919] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); [L919] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L919] tmp = getWaterLevel() [L921] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L156] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L113] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L66] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L113] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L141] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L143] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L825] COND TRUE waterLevel > 0 [L826] waterLevel = waterLevel - 1 [L143] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L148] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L150] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L170] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L173] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L188] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L150] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L156] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L914] int tmp ; [L915] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L919] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); [L919] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L919] tmp = getWaterLevel() [L921] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L156] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L113] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L66] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L113] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L141] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L143] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L825] COND TRUE waterLevel > 0 [L826] waterLevel = waterLevel - 1 [L143] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L148] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L150] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L170] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L173] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L188] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L150] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L156] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L914] int tmp ; [L915] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L919] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); [L919] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L919] tmp = getWaterLevel() [L921] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L923] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L222] int retValue_acc ; [L225] retValue_acc = pumpRunning [L226] return (retValue_acc); [L923] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L923] tmp___0 = isPumpRunning() [L925] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L927] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L447] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 178 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91.3s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 56.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6525 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6419 mSDsluCounter, 5639 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4596 mSDsCounter, 4829 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19974 IncrementalHoareTripleChecker+Invalid, 24803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4829 mSolverCounterUnsat, 1043 mSDtfsCounter, 19974 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1799 GetRequests, 983 SyntacticMatches, 19 SemanticMatches, 797 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46982 ImplicationChecksByTransitivity, 56.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2401occurred in iteration=13, InterpolantAutomatonStates: 530, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 3121 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1581 NumberOfCodeBlocks, 1581 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1785 ConstructedInterpolants, 0 QuantifiedInterpolants, 4954 SizeOfPredicates, 42 NumberOfNonLiveVariables, 1940 ConjunctsInSsa, 237 ConjunctsInUnsatCore, 22 InterpolantComputations, 9 PerfectInterpolantSequences, 259/363 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 14.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 51, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 261, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 241, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 198, TOOLS_POST_CALL_TIME: 1.3s, TOOLS_POST_RETURN_APPLICATIONS: 150, TOOLS_POST_RETURN_TIME: 1.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 589, TOOLS_QUANTIFIERELIM_TIME: 3.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 776, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 183, DOMAIN_JOIN_TIME: 10.7s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 261, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 7.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 7.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 150, CALL_SUMMARIZER_CACHE_MISSES: 39, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 2040, DAG_COMPRESSION_RETAINED_NODES: 707, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-03 01:06:44,641 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...