/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_spec1_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:52:10,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:52:10,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:52:10,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:52:10,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:52:10,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:52:10,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:52:10,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:52:10,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:52:10,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:52:10,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:52:10,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:52:10,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:52:10,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:52:10,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:52:10,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:52:10,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:52:10,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:52:10,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:52:10,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:52:10,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:52:10,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:52:10,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:52:10,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:52:10,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:52:10,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:52:10,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:52:10,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:52:10,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:52:10,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:52:10,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:52:10,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:52:10,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:52:10,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:52:10,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:52:10,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:52:10,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:52:10,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:52:10,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:52:10,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:52:10,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:52:10,378 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 23:52:10,396 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:52:10,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:52:10,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:52:10,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:52:10,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:52:10,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:52:10,397 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:52:10,397 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:52:10,397 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:52:10,398 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:52:10,398 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:52:10,399 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:52:10,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:52:10,399 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:52:10,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:52:10,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:52:10,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:52:10,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:52:10,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:52:10,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:52:10,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:52:10,401 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:52:10,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:52:10,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:52:10,401 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:52:10,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:52:10,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:52:10,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:52:10,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:52:10,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:52:10,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:52:10,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:52:10,678 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:52:10,679 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:52:10,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2023-03-31 23:52:11,793 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:52:12,047 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:52:12,047 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2023-03-31 23:52:12,064 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/976b11812/21e7f962046947faaac3378a29074eac/FLAGdcd3bddf4 [2023-03-31 23:52:12,078 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/976b11812/21e7f962046947faaac3378a29074eac [2023-03-31 23:52:12,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:52:12,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:52:12,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:52:12,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:52:12,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:52:12,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e2bfb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12, skipping insertion in model container [2023-03-31 23:52:12,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:52:12,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:52:12,316 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_spec1_product18.cil.c[16435,16448] [2023-03-31 23:52:12,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:52:12,332 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:52:12,429 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_spec1_product18.cil.c[16435,16448] [2023-03-31 23:52:12,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:52:12,450 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:52:12,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12 WrapperNode [2023-03-31 23:52:12,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:52:12,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:52:12,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:52:12,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:52:12,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:52:12,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:52:12,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:52:12,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:52:12,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (1/1) ... [2023-03-31 23:52:12,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:52:12,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:52:12,574 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 23:52:12,584 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 23:52:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:52:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:52:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:52:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:52:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:52:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:52:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:52:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:52:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:52:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:52:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:52:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:52:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:52:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:52:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:52:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:52:12,820 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:52:12,823 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:52:13,325 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:52:13,453 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:52:13,453 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:52:13,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:52:13 BoogieIcfgContainer [2023-03-31 23:52:13,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:52:13,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:52:13,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:52:13,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:52:13,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:52:12" (1/3) ... [2023-03-31 23:52:13,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b975aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:52:13, skipping insertion in model container [2023-03-31 23:52:13,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:52:12" (2/3) ... [2023-03-31 23:52:13,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b975aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:52:13, skipping insertion in model container [2023-03-31 23:52:13,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:52:13" (3/3) ... [2023-03-31 23:52:13,467 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2023-03-31 23:52:13,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:52:13,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:52:13,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:52:13,538 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;@3664a443, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:52:13,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:52:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 57 states have (on average 1.263157894736842) internal successors, (72), 68 states have internal predecessors, (72), 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 23:52:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-31 23:52:13,553 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:13,554 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 23:52:13,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:13,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:13,562 INFO L85 PathProgramCache]: Analyzing trace with hash 454631890, now seen corresponding path program 1 times [2023-03-31 23:52:13,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:13,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330513536] [2023-03-31 23:52:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:13,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:13,768 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 23:52:13,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:13,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330513536] [2023-03-31 23:52:13,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330513536] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:13,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:13,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:52:13,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878043929] [2023-03-31 23:52:13,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:13,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:52:13,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:13,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:52:13,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:52:13,814 INFO L87 Difference]: Start difference. First operand has 127 states, 57 states have (on average 1.263157894736842) internal successors, (72), 68 states have internal predecessors, (72), 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 23:52:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:13,895 INFO L93 Difference]: Finished difference Result 183 states and 220 transitions. [2023-03-31 23:52:13,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:52:13,904 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 23:52:13,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:13,912 INFO L225 Difference]: With dead ends: 183 [2023-03-31 23:52:13,912 INFO L226 Difference]: Without dead ends: 92 [2023-03-31 23:52:13,915 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 23:52:13,922 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 23:52:13,923 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 23:52:13,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-03-31 23:52:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-03-31 23:52:13,975 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 23:52:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2023-03-31 23:52:13,986 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 42 [2023-03-31 23:52:13,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:13,987 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2023-03-31 23:52:13,987 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 23:52:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2023-03-31 23:52:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-03-31 23:52:13,992 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:13,992 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 23:52:13,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:52:13,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:13,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:13,993 INFO L85 PathProgramCache]: Analyzing trace with hash -467387586, now seen corresponding path program 1 times [2023-03-31 23:52:13,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:13,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220354587] [2023-03-31 23:52:13,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:13,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:14,146 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 23:52:14,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:14,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220354587] [2023-03-31 23:52:14,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220354587] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:14,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:14,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:52:14,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468810913] [2023-03-31 23:52:14,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:14,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:52:14,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:52:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:52:14,151 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 23:52:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:14,197 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2023-03-31 23:52:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:52:14,197 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 23:52:14,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:14,199 INFO L225 Difference]: With dead ends: 137 [2023-03-31 23:52:14,199 INFO L226 Difference]: Without dead ends: 84 [2023-03-31 23:52:14,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:52:14,206 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 23:52:14,207 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 23:52:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-03-31 23:52:14,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-03-31 23:52:14,220 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 23:52:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2023-03-31 23:52:14,222 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 43 [2023-03-31 23:52:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:14,222 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2023-03-31 23:52:14,222 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 23:52:14,223 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2023-03-31 23:52:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:52:14,224 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:14,224 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 23:52:14,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:52:14,225 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:14,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:14,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1933177925, now seen corresponding path program 1 times [2023-03-31 23:52:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:14,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742094086] [2023-03-31 23:52:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:14,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:14,422 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 23:52:14,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:14,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742094086] [2023-03-31 23:52:14,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742094086] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:14,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:14,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:52:14,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364193300] [2023-03-31 23:52:14,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:14,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:52:14,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:14,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:52:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:52:14,426 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 23:52:14,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:14,611 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2023-03-31 23:52:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:52:14,612 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 23:52:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:14,613 INFO L225 Difference]: With dead ends: 146 [2023-03-31 23:52:14,613 INFO L226 Difference]: Without dead ends: 84 [2023-03-31 23:52:14,614 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 23:52:14,615 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 82 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:14,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 220 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:52:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-03-31 23:52:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-03-31 23:52:14,625 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 23:52:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-03-31 23:52:14,626 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 46 [2023-03-31 23:52:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:14,627 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-03-31 23:52:14,627 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 23:52:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-03-31 23:52:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-03-31 23:52:14,629 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:14,629 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 23:52:14,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:52:14,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:14,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash 913698054, now seen corresponding path program 1 times [2023-03-31 23:52:14,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:14,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885291753] [2023-03-31 23:52:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:14,770 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 23:52:14,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885291753] [2023-03-31 23:52:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885291753] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:52:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291580875] [2023-03-31 23:52:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:14,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:52:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:52:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:52:14,774 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:52:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:14,928 INFO L93 Difference]: Finished difference Result 201 states and 228 transitions. [2023-03-31 23:52:14,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:52:14,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 54 [2023-03-31 23:52:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:14,931 INFO L225 Difference]: With dead ends: 201 [2023-03-31 23:52:14,931 INFO L226 Difference]: Without dead ends: 139 [2023-03-31 23:52:14,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:52:14,933 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 55 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:14,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 327 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:52:14,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-03-31 23:52:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135. [2023-03-31 23:52:14,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 70 states have (on average 1.2) internal successors, (84), 82 states have internal predecessors, (84), 35 states have call successors, (35), 33 states have call predecessors, (35), 29 states have return successors, (31), 27 states have call predecessors, (31), 31 states have call successors, (31) [2023-03-31 23:52:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 150 transitions. [2023-03-31 23:52:14,971 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 150 transitions. Word has length 54 [2023-03-31 23:52:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:14,972 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 150 transitions. [2023-03-31 23:52:14,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:52:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 150 transitions. [2023-03-31 23:52:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-03-31 23:52:14,978 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:52:14,978 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] [2023-03-31 23:52:14,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:52:14,978 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:52:14,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:52:14,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1529957426, now seen corresponding path program 1 times [2023-03-31 23:52:14,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:52:14,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307774999] [2023-03-31 23:52:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:52:14,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:52:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:52:15,138 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 23:52:15,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:52:15,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307774999] [2023-03-31 23:52:15,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307774999] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:52:15,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:52:15,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:52:15,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907204351] [2023-03-31 23:52:15,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:52:15,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:52:15,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:52:15,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:52:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:52:15,141 INFO L87 Difference]: Start difference. First operand 135 states and 150 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 23:52:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:52:15,328 INFO L93 Difference]: Finished difference Result 215 states and 246 transitions. [2023-03-31 23:52:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:52:15,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 57 [2023-03-31 23:52:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:52:15,330 INFO L225 Difference]: With dead ends: 215 [2023-03-31 23:52:15,330 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:52:15,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-03-31 23:52:15,336 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 57 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:52:15,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 114 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:52:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:52:15,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:52:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:52:15,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:52:15,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2023-03-31 23:52:15,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:52:15,338 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:52:15,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-03-31 23:52:15,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:52:15,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:52:15,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:52:15,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:52:15,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:52:15,941 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 538) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 528 549) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 503 558) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 503 558) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point L550(lines 527 551) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point L604(line 604) no Hoare annotation was computed. [2023-03-31 23:52:15,942 INFO L899 garLoopResultBuilder]: For program point L604-1(line 604) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 559 618) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 595) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 559 618) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 559 618) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point L585-2(lines 585 610) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point L611(lines 584 612) no Hoare annotation was computed. [2023-03-31 23:52:15,943 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 107 115) no Hoare annotation was computed. [2023-03-31 23:52:15,944 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 107 115) the Hoare annotation is: true [2023-03-31 23:52:15,944 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 194 216) no Hoare annotation was computed. [2023-03-31 23:52:15,944 INFO L895 garLoopResultBuilder]: At program point L206(line 206) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~1 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,944 INFO L895 garLoopResultBuilder]: At program point L206-1(line 206) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~1 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,944 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 211) no Hoare annotation was computed. [2023-03-31 23:52:15,945 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 204 211) no Hoare annotation was computed. [2023-03-31 23:52:15,945 INFO L899 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2023-03-31 23:52:15,945 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 194 216) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,945 INFO L895 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,945 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,945 INFO L895 garLoopResultBuilder]: At program point L200-1(line 200) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,945 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 152 175) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point L159(line 159) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 152 175) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 152 175) no Hoare annotation was computed. [2023-03-31 23:52:15,946 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L168(line 168) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2023-03-31 23:52:15,947 INFO L899 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2023-03-31 23:52:15,948 INFO L902 garLoopResultBuilder]: At program point L363(line 363) the Hoare annotation is: true [2023-03-31 23:52:15,948 INFO L899 garLoopResultBuilder]: For program point L363-1(line 363) no Hoare annotation was computed. [2023-03-31 23:52:15,948 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 356 374) the Hoare annotation is: true [2023-03-31 23:52:15,948 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 356 374) no Hoare annotation was computed. [2023-03-31 23:52:15,948 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 93 99) no Hoare annotation was computed. [2023-03-31 23:52:15,948 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 93 99) the Hoare annotation is: true [2023-03-31 23:52:15,948 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 770 815) no Hoare annotation was computed. [2023-03-31 23:52:15,948 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 770 815) no Hoare annotation was computed. [2023-03-31 23:52:15,949 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 259 283) no Hoare annotation was computed. [2023-03-31 23:52:15,949 INFO L895 garLoopResultBuilder]: At program point L278(line 278) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,949 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 259 283) no Hoare annotation was computed. [2023-03-31 23:52:15,949 INFO L895 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,949 INFO L895 garLoopResultBuilder]: At program point L269(line 269) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,949 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2023-03-31 23:52:15,949 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 259 283) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,950 INFO L895 garLoopResultBuilder]: At program point L265(line 265) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,950 INFO L899 garLoopResultBuilder]: For program point L265-1(line 265) no Hoare annotation was computed. [2023-03-31 23:52:15,950 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 280) no Hoare annotation was computed. [2023-03-31 23:52:15,950 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 251 257) no Hoare annotation was computed. [2023-03-31 23:52:15,950 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 251 257) the Hoare annotation is: true [2023-03-31 23:52:15,950 INFO L895 garLoopResultBuilder]: At program point L442(lines 393 443) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,951 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 384 449) no Hoare annotation was computed. [2023-03-31 23:52:15,951 INFO L895 garLoopResultBuilder]: At program point L432-2(lines 424 437) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-03-31 23:52:15,951 INFO L899 garLoopResultBuilder]: For program point L395(lines 394 441) no Hoare annotation was computed. [2023-03-31 23:52:15,951 INFO L895 garLoopResultBuilder]: At program point L426(line 426) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-03-31 23:52:15,951 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 384 449) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,951 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 437) no Hoare annotation was computed. [2023-03-31 23:52:15,951 INFO L895 garLoopResultBuilder]: At program point L416(line 416) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-03-31 23:52:15,952 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 420) no Hoare annotation was computed. [2023-03-31 23:52:15,952 INFO L899 garLoopResultBuilder]: For program point L414-1(lines 414 420) no Hoare annotation was computed. [2023-03-31 23:52:15,952 INFO L895 garLoopResultBuilder]: At program point L439(lines 394 441) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-03-31 23:52:15,952 INFO L895 garLoopResultBuilder]: At program point L406(line 406) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0) (= 1 ~systemActive~0))) [2023-03-31 23:52:15,952 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 410) no Hoare annotation was computed. [2023-03-31 23:52:15,952 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 404 410) no Hoare annotation was computed. [2023-03-31 23:52:15,952 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 384 449) no Hoare annotation was computed. [2023-03-31 23:52:15,952 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 906 914) the Hoare annotation is: true [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 906 914) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 874 896) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 874 896) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 284 291) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 284 291) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 897 905) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 897 905) no Hoare annotation was computed. [2023-03-31 23:52:15,953 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 865 873) the Hoare annotation is: true [2023-03-31 23:52:15,953 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 865 873) no Hoare annotation was computed. [2023-03-31 23:52:15,954 INFO L895 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,954 INFO L895 garLoopResultBuilder]: At program point L238(lines 238 244) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,954 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 227 250) no Hoare annotation was computed. [2023-03-31 23:52:15,954 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 227 250) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,954 INFO L895 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,954 INFO L899 garLoopResultBuilder]: For program point L231(lines 230 249) no Hoare annotation was computed. [2023-03-31 23:52:15,954 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 227 250) no Hoare annotation was computed. [2023-03-31 23:52:15,955 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 119 148) no Hoare annotation was computed. [2023-03-31 23:52:15,955 INFO L902 garLoopResultBuilder]: At program point L129-2(lines 129 143) the Hoare annotation is: true [2023-03-31 23:52:15,955 INFO L902 garLoopResultBuilder]: At program point L125(line 125) the Hoare annotation is: true [2023-03-31 23:52:15,955 INFO L899 garLoopResultBuilder]: For program point L125-1(line 125) no Hoare annotation was computed. [2023-03-31 23:52:15,955 INFO L902 garLoopResultBuilder]: At program point L144(lines 119 148) the Hoare annotation is: true [2023-03-31 23:52:15,955 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2023-03-31 23:52:15,955 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 119 148) the Hoare annotation is: true [2023-03-31 23:52:15,955 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 137) no Hoare annotation was computed. [2023-03-31 23:52:15,955 INFO L902 garLoopResultBuilder]: At program point L133-1(lines 133 137) the Hoare annotation is: true [2023-03-31 23:52:15,955 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 829 840) no Hoare annotation was computed. [2023-03-31 23:52:15,956 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 829 840) the Hoare annotation is: true [2023-03-31 23:52:15,956 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 375 382) no Hoare annotation was computed. [2023-03-31 23:52:15,956 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 375 382) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,956 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 841 852) no Hoare annotation was computed. [2023-03-31 23:52:15,956 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 841 852) the Hoare annotation is: true [2023-03-31 23:52:15,956 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 817 824) the Hoare annotation is: true [2023-03-31 23:52:15,956 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 821) no Hoare annotation was computed. [2023-03-31 23:52:15,956 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 817 824) no Hoare annotation was computed. [2023-03-31 23:52:15,957 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 100 106) the Hoare annotation is: true [2023-03-31 23:52:15,957 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 100 106) no Hoare annotation was computed. [2023-03-31 23:52:15,957 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 311 319) no Hoare annotation was computed. [2023-03-31 23:52:15,957 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 311 319) the Hoare annotation is: true [2023-03-31 23:52:15,957 INFO L899 garLoopResultBuilder]: For program point L350(line 350) no Hoare annotation was computed. [2023-03-31 23:52:15,957 INFO L899 garLoopResultBuilder]: For program point L350-1(line 350) no Hoare annotation was computed. [2023-03-31 23:52:15,957 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 320 355) no Hoare annotation was computed. [2023-03-31 23:52:15,957 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 320 355) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 457 502) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 457 502) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 184 193) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 184 193) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 184 193) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point L305(line 305) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point L305-1(line 305) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 300 310) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 300 310) no Hoare annotation was computed. [2023-03-31 23:52:15,958 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 292 299) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 292 299) the Hoare annotation is: true [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 724 769) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 724 769) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 83 92) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 83 92) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point L671(lines 670 690) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point L702(line 702) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point L702-1(line 702) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point L667(lines 667 708) no Hoare annotation was computed. [2023-03-31 23:52:15,959 INFO L899 garLoopResultBuilder]: For program point L686(line 686) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point L686-1(line 686) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 621 723) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 621 723) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 649) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point L670-2(lines 670 690) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point L691(lines 669 692) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 621 723) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point L650(lines 650 666) no Hoare annotation was computed. [2023-03-31 23:52:15,960 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-03-31 23:52:15,960 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:52:15,961 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 853 864) the Hoare annotation is: true [2023-03-31 23:52:15,961 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 853 864) no Hoare annotation was computed. [2023-03-31 23:52:15,961 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:52:15,961 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:52:15,961 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 176 182) no Hoare annotation was computed. [2023-03-31 23:52:15,961 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 176 182) the Hoare annotation is: true [2023-03-31 23:52:15,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:52:15,961 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-03-31 23:52:15,961 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:52:15,962 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:52:15,962 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2023-03-31 23:52:15,962 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) [2023-03-31 23:52:15,962 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-03-31 23:52:15,962 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2023-03-31 23:52:15,962 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 53 77) no Hoare annotation was computed. [2023-03-31 23:52:15,962 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2023-03-31 23:52:15,962 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-03-31 23:52:15,962 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 53 77) no Hoare annotation was computed. [2023-03-31 23:52:15,963 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 53 77) the Hoare annotation is: true [2023-03-31 23:52:15,963 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2023-03-31 23:52:15,968 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-03-31 23:52:15,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:52:15,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:52:15 BoogieIcfgContainer [2023-03-31 23:52:15,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:52:15,988 INFO L158 Benchmark]: Toolchain (without parser) took 3905.15ms. Allocated memory is still 296.7MB. Free memory was 237.3MB in the beginning and 159.4MB in the end (delta: 77.9MB). Peak memory consumption was 79.1MB. Max. memory is 8.0GB. [2023-03-31 23:52:15,988 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:52:15,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.91ms. Allocated memory is still 296.7MB. Free memory was 237.0MB in the beginning and 219.1MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-03-31 23:52:15,989 INFO L158 Benchmark]: Boogie Preprocessor took 88.25ms. Allocated memory is still 296.7MB. Free memory was 219.1MB in the beginning and 215.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-03-31 23:52:15,989 INFO L158 Benchmark]: RCFGBuilder took 917.33ms. Allocated memory is still 296.7MB. Free memory was 215.6MB in the beginning and 223.5MB in the end (delta: -7.8MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. [2023-03-31 23:52:15,989 INFO L158 Benchmark]: TraceAbstraction took 2524.88ms. Allocated memory is still 296.7MB. Free memory was 222.9MB in the beginning and 159.4MB in the end (delta: 63.5MB). Peak memory consumption was 64.1MB. Max. memory is 8.0GB. [2023-03-31 23:52:15,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 365.91ms. Allocated memory is still 296.7MB. Free memory was 237.0MB in the beginning and 219.1MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 88.25ms. Allocated memory is still 296.7MB. Free memory was 219.1MB in the beginning and 215.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 917.33ms. Allocated memory is still 296.7MB. Free memory was 215.6MB in the beginning and 223.5MB in the end (delta: -7.8MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2524.88ms. Allocated memory is still 296.7MB. Free memory was 222.9MB in the beginning and 159.4MB in the end (delta: 63.5MB). Peak memory consumption was 64.1MB. 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 - PositiveResult [Line: 821]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 172 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 908 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 544 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 462 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 364 mSDtfsCounter, 462 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 229 PreInvPairs, 243 NumberOfFragments, 484 HoareAnnotationTreeSize, 229 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 51 FomulaSimplificationsInter, 723 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1)) || ((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) RESULT: Ultimate proved your program to be correct! [2023-03-31 23:52:16,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...