/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:56:31,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:56:31,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:56:31,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:56:31,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:56:31,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:56:31,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:56:31,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:56:31,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:56:31,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:56:31,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:56:31,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:56:31,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:56:31,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:56:31,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:56:31,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:56:31,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:56:31,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:56:31,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:56:31,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:56:31,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:56:31,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:56:31,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:56:31,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:56:31,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:56:31,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:56:31,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:56:31,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:56:31,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:56:31,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:56:31,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:56:31,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:56:31,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:56:31,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:56:31,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:56:31,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:56:31,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:56:31,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:56:31,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:56:31,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:56:31,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:56:31,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 23:56:31,511 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:56:31,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:56:31,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:56:31,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:56:31,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:56:31,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:56:31,512 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:56:31,512 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:56:31,512 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:56:31,512 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:56:31,513 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:56:31,513 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:56:31,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:56:31,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:56:31,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:56:31,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:56:31,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:56:31,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:56:31,516 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:56:31,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:56:31,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:56:31,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:56:31,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:56:31,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:56:31,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:56:31,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:56:31,734 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:56:31,735 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:56:31,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2023-03-31 23:56:32,703 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:56:32,939 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:56:32,939 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product34.cil.c [2023-03-31 23:56:32,946 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0b0c798/1578808edc374c52bca290ed5f66a726/FLAG9fbffa594 [2023-03-31 23:56:32,958 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0b0c798/1578808edc374c52bca290ed5f66a726 [2023-03-31 23:56:32,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:56:32,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:56:32,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:56:32,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:56:32,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:56:32,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:56:32" (1/1) ... [2023-03-31 23:56:32,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dab9141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:32, skipping insertion in model container [2023-03-31 23:56:32,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:56:32" (1/1) ... [2023-03-31 23:56:32,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:56:32,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:56:33,113 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_product34.cil.c[8026,8039] [2023-03-31 23:56:33,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:56:33,170 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:56:33,188 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_product34.cil.c[8026,8039] [2023-03-31 23:56:33,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:56:33,218 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:56:33,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33 WrapperNode [2023-03-31 23:56:33,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:56:33,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:56:33,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:56:33,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:56:33,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:56:33,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:56:33,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:56:33,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:56:33,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (1/1) ... [2023-03-31 23:56:33,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:56:33,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:56:33,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 23:56:33,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 23:56:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:56:33,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:56:33,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:56:33,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:56:33,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:56:33,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:56:33,373 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:56:33,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:56:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:56:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:56:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:56:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:56:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:56:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:56:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:56:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:56:33,378 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:56:33,379 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:56:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:56:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:56:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:56:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:56:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:56:33,380 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:56:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:56:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:56:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:56:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:56:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:56:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:56:33,383 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:56:33,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:56:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:56:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:56:33,539 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:56:33,541 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:56:33,926 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:56:34,039 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:56:34,040 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:56:34,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:56:34 BoogieIcfgContainer [2023-03-31 23:56:34,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:56:34,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:56:34,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:56:34,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:56:34,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:56:32" (1/3) ... [2023-03-31 23:56:34,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e268d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:56:34, skipping insertion in model container [2023-03-31 23:56:34,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:56:33" (2/3) ... [2023-03-31 23:56:34,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e268d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:56:34, skipping insertion in model container [2023-03-31 23:56:34,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:56:34" (3/3) ... [2023-03-31 23:56:34,055 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2023-03-31 23:56:34,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:56:34,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:56:34,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:56:34,115 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;@33eda3a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:56:34,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:56:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 67 states have internal predecessors, (71), 41 states have call successors, (41), 25 states have call predecessors, (41), 25 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2023-03-31 23:56:34,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:56:34,127 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:34,128 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] [2023-03-31 23:56:34,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:34,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1593482264, now seen corresponding path program 1 times [2023-03-31 23:56:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942788465] [2023-03-31 23:56:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:56:34,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:34,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942788465] [2023-03-31 23:56:34,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942788465] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:56:34,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:56:34,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:56:34,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220365895] [2023-03-31 23:56:34,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:56:34,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:56:34,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:56:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:56:34,284 INFO L87 Difference]: Start difference. First operand has 125 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 67 states have internal predecessors, (71), 41 states have call successors, (41), 25 states have call predecessors, (41), 25 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) 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) [2023-03-31 23:56:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:34,320 INFO L93 Difference]: Finished difference Result 183 states and 220 transitions. [2023-03-31 23:56:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:56:34,333 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 [2023-03-31 23:56:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:34,340 INFO L225 Difference]: With dead ends: 183 [2023-03-31 23:56:34,341 INFO L226 Difference]: Without dead ends: 92 [2023-03-31 23:56:34,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:56:34,349 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:34,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:56:34,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-03-31 23:56:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-03-31 23:56:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 55 states have internal predecessors, (57), 26 states have call successors, (26), 23 states have call predecessors, (26), 18 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-03-31 23:56:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2023-03-31 23:56:34,391 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 42 [2023-03-31 23:56:34,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:34,392 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2023-03-31 23:56:34,392 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) [2023-03-31 23:56:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2023-03-31 23:56:34,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:56:34,395 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:34,395 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] [2023-03-31 23:56:34,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:56:34,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:34,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1787218727, now seen corresponding path program 1 times [2023-03-31 23:56:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872400419] [2023-03-31 23:56:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:34,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:56:34,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:34,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872400419] [2023-03-31 23:56:34,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872400419] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:56:34,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:56:34,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:56:34,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414054124] [2023-03-31 23:56:34,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:56:34,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:56:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:56:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:56:34,529 INFO L87 Difference]: Start difference. First operand 92 states and 104 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) [2023-03-31 23:56:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:34,570 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2023-03-31 23:56:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:56:34,571 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 [2023-03-31 23:56:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:34,572 INFO L225 Difference]: With dead ends: 137 [2023-03-31 23:56:34,572 INFO L226 Difference]: Without dead ends: 84 [2023-03-31 23:56:34,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:56:34,573 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 9 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:34,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 147 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:56:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-03-31 23:56:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-03-31 23:56:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 50 states have internal predecessors, (51), 23 states have call successors, (23), 22 states have call predecessors, (23), 18 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-03-31 23:56:34,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2023-03-31 23:56:34,583 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 43 [2023-03-31 23:56:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:34,584 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2023-03-31 23:56:34,584 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) [2023-03-31 23:56:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2023-03-31 23:56:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:56:34,585 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:34,585 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] [2023-03-31 23:56:34,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:56:34,585 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:34,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:34,586 INFO L85 PathProgramCache]: Analyzing trace with hash 769411183, now seen corresponding path program 1 times [2023-03-31 23:56:34,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:34,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345289824] [2023-03-31 23:56:34,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:34,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:56:34,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:34,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345289824] [2023-03-31 23:56:34,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345289824] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:56:34,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:56:34,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:56:34,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368704332] [2023-03-31 23:56:34,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:56:34,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:56:34,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:34,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:56:34,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:56:34,751 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2023-03-31 23:56:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:34,895 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2023-03-31 23:56:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:56:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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 46 [2023-03-31 23:56:34,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:34,897 INFO L225 Difference]: With dead ends: 146 [2023-03-31 23:56:34,897 INFO L226 Difference]: Without dead ends: 84 [2023-03-31 23:56:34,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:56:34,898 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 119 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:34,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 219 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:56:34,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-03-31 23:56:34,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-03-31 23:56:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 49 states have internal predecessors, (50), 23 states have call successors, (23), 22 states have call predecessors, (23), 18 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-03-31 23:56:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-03-31 23:56:34,905 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 46 [2023-03-31 23:56:34,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:34,905 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-03-31 23:56:34,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2023-03-31 23:56:34,905 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-03-31 23:56:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-03-31 23:56:34,906 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:34,906 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] [2023-03-31 23:56:34,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:56:34,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:34,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:34,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1785253084, now seen corresponding path program 1 times [2023-03-31 23:56:34,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:34,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521666804] [2023-03-31 23:56:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:34,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:56:35,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:35,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521666804] [2023-03-31 23:56:35,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521666804] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:56:35,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:56:35,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:56:35,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445492059] [2023-03-31 23:56:35,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:56:35,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:56:35,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:56:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:56:35,054 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-03-31 23:56:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:35,244 INFO L93 Difference]: Finished difference Result 223 states and 260 transitions. [2023-03-31 23:56:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:56:35,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 54 [2023-03-31 23:56:35,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:35,248 INFO L225 Difference]: With dead ends: 223 [2023-03-31 23:56:35,248 INFO L226 Difference]: Without dead ends: 161 [2023-03-31 23:56:35,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:56:35,257 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:35,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 117 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:56:35,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-03-31 23:56:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 144. [2023-03-31 23:56:35,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 85 states have internal predecessors, (91), 34 states have call successors, (34), 34 states have call predecessors, (34), 32 states have return successors, (34), 31 states have call predecessors, (34), 30 states have call successors, (34) [2023-03-31 23:56:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 159 transitions. [2023-03-31 23:56:35,281 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 159 transitions. Word has length 54 [2023-03-31 23:56:35,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:35,281 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 159 transitions. [2023-03-31 23:56:35,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-03-31 23:56:35,281 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 159 transitions. [2023-03-31 23:56:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-03-31 23:56:35,283 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:35,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:56:35,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:56:35,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:35,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash -736020215, now seen corresponding path program 1 times [2023-03-31 23:56:35,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:35,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300669092] [2023-03-31 23:56:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:35,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:56:35,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:35,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300669092] [2023-03-31 23:56:35,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300669092] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:56:35,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:56:35,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 23:56:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488996398] [2023-03-31 23:56:35,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:56:35,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 23:56:35,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:35,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 23:56:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:56:35,499 INFO L87 Difference]: Start difference. First operand 144 states and 159 transitions. Second operand has 10 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-03-31 23:56:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:35,745 INFO L93 Difference]: Finished difference Result 436 states and 508 transitions. [2023-03-31 23:56:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 23:56:35,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 63 [2023-03-31 23:56:35,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:35,753 INFO L225 Difference]: With dead ends: 436 [2023-03-31 23:56:35,753 INFO L226 Difference]: Without dead ends: 314 [2023-03-31 23:56:35,754 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 [2023-03-31 23:56:35,756 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 137 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:35,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 492 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:56:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-03-31 23:56:35,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 300. [2023-03-31 23:56:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 167 states have (on average 1.1796407185628743) internal successors, (197), 185 states have internal predecessors, (197), 66 states have call successors, (66), 66 states have call predecessors, (66), 66 states have return successors, (74), 65 states have call predecessors, (74), 62 states have call successors, (74) [2023-03-31 23:56:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 337 transitions. [2023-03-31 23:56:35,821 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 337 transitions. Word has length 63 [2023-03-31 23:56:35,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:35,822 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 337 transitions. [2023-03-31 23:56:35,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-03-31 23:56:35,822 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 337 transitions. [2023-03-31 23:56:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-03-31 23:56:35,827 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:35,828 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, 1, 1] [2023-03-31 23:56:35,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:56:35,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:35,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1929927165, now seen corresponding path program 1 times [2023-03-31 23:56:35,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:35,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692507910] [2023-03-31 23:56:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:35,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-03-31 23:56:36,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:36,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692507910] [2023-03-31 23:56:36,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692507910] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:56:36,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458656952] [2023-03-31 23:56:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:36,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:56:36,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:56:36,313 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) [2023-03-31 23:56:36,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:56:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:36,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 51 conjunts are in the unsatisfiable core [2023-03-31 23:56:36,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:56:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 23:56:36,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:56:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 23:56:37,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458656952] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:56:37,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [625206771] [2023-03-31 23:56:37,282 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2023-03-31 23:56:37,283 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:56:37,286 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:56:37,289 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:56:37,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:56:37,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-03-31 23:56:37,554 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 32 for LOIs [2023-03-31 23:56:37,697 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 32 for LOIs [2023-03-31 23:56:37,709 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-03-31 23:56:37,711 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-03-31 23:56:37,713 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 32 for LOIs [2023-03-31 23:56:38,378 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2023-03-31 23:56:38,402 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 26 for LOIs [2023-03-31 23:56:38,485 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 20 for LOIs [2023-03-31 23:56:38,532 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2023-03-31 23:56:38,538 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-03-31 23:56:38,543 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 20 for LOIs [2023-03-31 23:56:38,547 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 26 for LOIs [2023-03-31 23:56:38,552 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-03-31 23:56:38,555 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-03-31 23:56:38,558 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 29 for LOIs [2023-03-31 23:56:38,666 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-03-31 23:56:38,706 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-03-31 23:56:38,711 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-03-31 23:56:38,715 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 23 for LOIs [2023-03-31 23:56:38,717 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:56:40,918 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3519#(and (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-03-31 23:56:40,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:56:40,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:56:40,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 17] total 33 [2023-03-31 23:56:40,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512524324] [2023-03-31 23:56:40,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:56:40,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-03-31 23:56:40,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:40,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-03-31 23:56:40,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=525, Invalid=4731, Unknown=0, NotChecked=0, Total=5256 [2023-03-31 23:56:40,922 INFO L87 Difference]: Start difference. First operand 300 states and 337 transitions. Second operand has 33 states, 23 states have (on average 4.434782608695652) internal successors, (102), 26 states have internal predecessors, (102), 10 states have call successors, (50), 12 states have call predecessors, (50), 16 states have return successors, (41), 16 states have call predecessors, (41), 10 states have call successors, (41) [2023-03-31 23:56:43,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:43,004 INFO L93 Difference]: Finished difference Result 1280 states and 1857 transitions. [2023-03-31 23:56:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-03-31 23:56:43,005 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 23 states have (on average 4.434782608695652) internal successors, (102), 26 states have internal predecessors, (102), 10 states have call successors, (50), 12 states have call predecessors, (50), 16 states have return successors, (41), 16 states have call predecessors, (41), 10 states have call successors, (41) Word has length 98 [2023-03-31 23:56:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:43,014 INFO L225 Difference]: With dead ends: 1280 [2023-03-31 23:56:43,014 INFO L226 Difference]: Without dead ends: 1154 [2023-03-31 23:56:43,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 245 SyntacticMatches, 5 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5743 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1488, Invalid=12554, Unknown=0, NotChecked=0, Total=14042 [2023-03-31 23:56:43,031 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 1181 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:43,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 1004 Invalid, 3276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1114 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 23:56:43,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2023-03-31 23:56:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 592. [2023-03-31 23:56:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 329 states have (on average 1.1641337386018238) internal successors, (383), 362 states have internal predecessors, (383), 131 states have call successors, (131), 129 states have call predecessors, (131), 131 states have return successors, (168), 129 states have call predecessors, (168), 127 states have call successors, (168) [2023-03-31 23:56:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 682 transitions. [2023-03-31 23:56:43,123 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 682 transitions. Word has length 98 [2023-03-31 23:56:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:43,123 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 682 transitions. [2023-03-31 23:56:43,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 23 states have (on average 4.434782608695652) internal successors, (102), 26 states have internal predecessors, (102), 10 states have call successors, (50), 12 states have call predecessors, (50), 16 states have return successors, (41), 16 states have call predecessors, (41), 10 states have call successors, (41) [2023-03-31 23:56:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 682 transitions. [2023-03-31 23:56:43,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-03-31 23:56:43,125 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:43,125 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] [2023-03-31 23:56:43,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 23:56:43,330 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 [2023-03-31 23:56:43,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:43,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash 990690306, now seen corresponding path program 1 times [2023-03-31 23:56:43,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:43,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569429116] [2023-03-31 23:56:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-31 23:56:43,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:56:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569429116] [2023-03-31 23:56:43,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569429116] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:56:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13600397] [2023-03-31 23:56:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:43,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:56:43,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:56:43,621 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) [2023-03-31 23:56:43,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:56:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:56:43,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 33 conjunts are in the unsatisfiable core [2023-03-31 23:56:43,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:56:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:56:43,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:56:43,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13600397] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:56:43,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 23:56:43,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26 [2023-03-31 23:56:44,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575720573] [2023-03-31 23:56:44,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:56:44,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 23:56:44,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:56:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 23:56:44,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-03-31 23:56:44,001 INFO L87 Difference]: Start difference. First operand 592 states and 682 transitions. Second operand has 14 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 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) [2023-03-31 23:56:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:56:44,864 INFO L93 Difference]: Finished difference Result 1419 states and 1689 transitions. [2023-03-31 23:56:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 23:56:44,864 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 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 95 [2023-03-31 23:56:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:56:44,868 INFO L225 Difference]: With dead ends: 1419 [2023-03-31 23:56:44,868 INFO L226 Difference]: Without dead ends: 849 [2023-03-31 23:56:44,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1732, Unknown=0, NotChecked=0, Total=1980 [2023-03-31 23:56:44,870 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 176 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 23:56:44,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 297 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 23:56:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2023-03-31 23:56:44,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 824. [2023-03-31 23:56:44,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 470 states have (on average 1.1595744680851063) internal successors, (545), 513 states have internal predecessors, (545), 185 states have call successors, (185), 183 states have call predecessors, (185), 168 states have return successors, (228), 169 states have call predecessors, (228), 181 states have call successors, (228) [2023-03-31 23:56:44,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 958 transitions. [2023-03-31 23:56:44,926 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 958 transitions. Word has length 95 [2023-03-31 23:56:44,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:56:44,926 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 958 transitions. [2023-03-31 23:56:44,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 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) [2023-03-31 23:56:44,927 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 958 transitions. [2023-03-31 23:56:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-03-31 23:56:44,932 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:56:44,932 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-03-31 23:56:44,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:56:45,146 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 [2023-03-31 23:56:45,147 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:56:45,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:56:45,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1729301750, now seen corresponding path program 2 times [2023-03-31 23:56:45,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:56:45,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264952306] [2023-03-31 23:56:45,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:56:45,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:56:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:56:45,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 23:56:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:56:45,211 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 23:56:45,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 23:56:45,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:56:45,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 23:56:45,216 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-03-31 23:56:45,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:56:45,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:56:45 BoogieIcfgContainer [2023-03-31 23:56:45,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:56:45,290 INFO L158 Benchmark]: Toolchain (without parser) took 12329.75ms. Allocated memory was 213.9MB in the beginning and 396.4MB in the end (delta: 182.5MB). Free memory was 178.6MB in the beginning and 225.8MB in the end (delta: -47.2MB). Peak memory consumption was 137.8MB. Max. memory is 8.0GB. [2023-03-31 23:56:45,290 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 158.3MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:56:45,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.52ms. Allocated memory is still 213.9MB. Free memory was 178.6MB in the beginning and 160.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 23:56:45,291 INFO L158 Benchmark]: Boogie Preprocessor took 82.34ms. Allocated memory is still 213.9MB. Free memory was 160.3MB in the beginning and 157.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:56:45,291 INFO L158 Benchmark]: RCFGBuilder took 739.22ms. Allocated memory is still 213.9MB. Free memory was 157.2MB in the beginning and 171.9MB in the end (delta: -14.7MB). Peak memory consumption was 54.4MB. Max. memory is 8.0GB. [2023-03-31 23:56:45,291 INFO L158 Benchmark]: TraceAbstraction took 11247.29ms. Allocated memory was 213.9MB in the beginning and 396.4MB in the end (delta: 182.5MB). Free memory was 170.9MB in the beginning and 225.8MB in the end (delta: -55.0MB). Peak memory consumption was 127.5MB. Max. memory is 8.0GB. [2023-03-31 23:56:45,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 158.3MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 257.52ms. Allocated memory is still 213.9MB. Free memory was 178.6MB in the beginning and 160.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.34ms. Allocated memory is still 213.9MB. Free memory was 160.3MB in the beginning and 157.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 739.22ms. Allocated memory is still 213.9MB. Free memory was 157.2MB in the beginning and 171.9MB in the end (delta: -14.7MB). Peak memory consumption was 54.4MB. Max. memory is 8.0GB. * TraceAbstraction took 11247.29ms. Allocated memory was 213.9MB in the beginning and 396.4MB in the end (delta: 182.5MB). Free memory was 170.9MB in the beginning and 225.8MB in the end (delta: -55.0MB). Peak memory consumption was 127.5MB. 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: 550]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L79] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L452] int waterLevel = 1; [L453] int methaneLevelCritical = 0; [L724] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L160] int retValue_acc ; [L161] 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] [L165] 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] [L166] 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] [L167] 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] [L209] int retValue_acc ; [L212] retValue_acc = 1 [L213] return (retValue_acc); [L167] 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] [L167] tmp = valid_product() [L169] 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] [L171] 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] [L172] 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] [L151] 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] [L220] int splverifierCounter ; [L221] int tmp ; [L222] int tmp___0 ; [L223] int tmp___1 ; [L224] int tmp___2 ; [L227] 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] [L229] 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] [L231] COND TRUE splverifierCounter < 4 [L237] tmp = __VERIFIER_nondet_int() [L239] 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] [L241] 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] [L470] COND TRUE waterLevel < 2 [L471] waterLevel = waterLevel + 1 [L241] 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] [L247] tmp___0 = __VERIFIER_nondet_int() [L249] 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] [L257] tmp___2 = __VERIFIER_nondet_int() [L259] COND FALSE !(\read(tmp___2)) [L265] tmp___1 = __VERIFIER_nondet_int() [L267] 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] [L274] 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] [L299] 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] [L306] 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] [L308] 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] [L328] 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] [L331] 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] [L333] 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] [L425] int retValue_acc ; [L426] int tmp ; [L427] 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] [L431] 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] [L532] int retValue_acc ; [L535] COND FALSE !(waterLevel < 2) [L539] retValue_acc = 0 [L540] return (retValue_acc); [L431] 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] [L431] tmp = isHighWaterSensorDry() [L433] COND FALSE !(\read(tmp)) [L436] tmp___0 = 1 [L438] retValue_acc = tmp___0 [L439] return (retValue_acc); [L333] 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] [L333] tmp = isHighWaterLevel() [L335] 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] [L337] 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] [L356] pumpRunning = 1 [L337] 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] [L308] 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] [L314] 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] [L54] int tmp ; [L55] 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] [L59] 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] [L523] int retValue_acc ; [L526] retValue_acc = waterLevel [L527] return (retValue_acc); [L59] 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] [L59] tmp = getWaterLevel() [L61] 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] [L314] 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] [L274] 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] [L229] 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] [L231] COND TRUE splverifierCounter < 4 [L237] tmp = __VERIFIER_nondet_int() [L239] 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] [L247] tmp___0 = __VERIFIER_nondet_int() [L249] 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] [L257] tmp___2 = __VERIFIER_nondet_int() [L259] COND FALSE !(\read(tmp___2)) [L265] tmp___1 = __VERIFIER_nondet_int() [L267] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L274] 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] [L299] 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] [L301] 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] [L458] COND TRUE waterLevel > 0 [L459] waterLevel = waterLevel - 1 [L301] 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] [L306] 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] [L308] 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] [L328] 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] [L331] 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] [L346] 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] [L308] 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] [L314] 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] [L54] int tmp ; [L55] 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] [L59] 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] [L523] int retValue_acc ; [L526] retValue_acc = waterLevel [L527] return (retValue_acc); [L59] 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] [L59] tmp = getWaterLevel() [L61] 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] [L314] 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] [L274] 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=1, tmp___2=0, waterLevel=1] [L229] 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=1, tmp___2=0, waterLevel=1] [L231] COND TRUE splverifierCounter < 4 [L237] tmp = __VERIFIER_nondet_int() [L239] 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=1, tmp___2=0, waterLevel=1] [L247] tmp___0 = __VERIFIER_nondet_int() [L249] 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=1, tmp___2=0, waterLevel=1] [L257] tmp___2 = __VERIFIER_nondet_int() [L259] COND FALSE !(\read(tmp___2)) [L265] tmp___1 = __VERIFIER_nondet_int() [L267] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L274] 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] [L299] 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] [L301] 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] [L458] COND TRUE waterLevel > 0 [L459] waterLevel = waterLevel - 1 [L301] 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] [L306] 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] [L308] 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] [L328] 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] [L331] 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] [L346] 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] [L308] 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] [L314] 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] [L54] int tmp ; [L55] 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] [L59] 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] [L523] int retValue_acc ; [L526] retValue_acc = waterLevel [L527] return (retValue_acc); [L59] 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] [L59] tmp = getWaterLevel() [L61] 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] [L63] 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] [L380] int retValue_acc ; [L383] retValue_acc = pumpRunning [L384] return (retValue_acc); [L63] 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] [L63] tmp___0 = isPumpRunning() [L65] 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] [L67] 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] [L550] 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 39 procedures, 172 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1796 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1734 mSDsluCounter, 2376 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1841 mSDsCounter, 1371 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4072 IncrementalHoareTripleChecker+Invalid, 5443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1371 mSolverCounterUnsat, 535 mSDtfsCounter, 4072 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 555 GetRequests, 359 SyntacticMatches, 5 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6296 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=824occurred in iteration=7, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 618 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 764 NumberOfCodeBlocks, 764 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 722 ConstructedInterpolants, 0 QuantifiedInterpolants, 1972 SizeOfPredicates, 18 NumberOfNonLiveVariables, 796 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 84/110 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-03-31 23:56:45,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...