/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:01:23,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:01:23,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:01:23,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:01:23,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:01:23,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:01:23,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:01:23,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:01:23,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:01:23,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:01:23,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:01:23,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:01:23,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:01:23,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:01:23,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:01:23,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:01:23,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:01:23,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:01:23,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:01:23,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:01:23,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:01:23,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:01:23,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:01:23,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:01:23,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:01:23,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:01:23,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:01:23,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:01:23,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:01:23,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:01:23,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:01:23,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:01:23,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:01:23,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:01:23,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:01:23,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:01:23,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:01:23,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:01:23,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:01:23,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:01:23,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:01:23,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:01:23,172 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:01:23,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:01:23,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:01:23,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:01:23,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:01:23,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:01:23,174 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:01:23,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:01:23,174 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:01:23,174 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:01:23,175 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:01:23,175 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:01:23,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:01:23,176 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:01:23,176 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:01:23,176 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:01:23,176 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:01:23,176 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:01:23,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:01:23,177 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:01:23,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:01:23,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:01:23,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:01:23,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:01:23,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:01:23,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:01:23,179 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:01:23,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:01:23,179 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:01:23,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:01:23,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:01:23,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:01:23,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:01:23,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:01:23,180 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:01:23,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:01:23,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:01:23,181 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:01:23,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:01:23,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:01:23,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:01:23,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:01:23,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:01:23,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:01:23,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:01:23,449 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:01:23,449 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:01:23,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2023-04-01 12:01:24,695 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:01:24,887 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:01:24,888 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2023-04-01 12:01:24,898 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d75839b0/57f190629b1d44fd94a2869805603819/FLAGa8e0eb351 [2023-04-01 12:01:24,916 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d75839b0/57f190629b1d44fd94a2869805603819 [2023-04-01 12:01:24,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:01:24,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:01:24,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:01:24,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:01:24,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:01:24,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d2ce53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:24, skipping insertion in model container [2023-04-01 12:01:24,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:01:24" (1/1) ... [2023-04-01 12:01:24,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:01:24,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:01:25,296 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_spec2_product18.cil.c[18052,18065] [2023-04-01 12:01:25,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:01:25,325 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:01:25,386 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_spec2_product18.cil.c[18052,18065] [2023-04-01 12:01:25,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:01:25,402 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:01:25,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25 WrapperNode [2023-04-01 12:01:25,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:01:25,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:01:25,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:01:25,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:01:25,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:01:25,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:01:25,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:01:25,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:01:25,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (1/1) ... [2023-04-01 12:01:25,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:01:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:01:25,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 12:01:25,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 12:01:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:01:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:01:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:01:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:01:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:01:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:01:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:01:25,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-01 12:01:25,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-01 12:01:25,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:01:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:01:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:01:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:01:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:01:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:01:25,538 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:01:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:01:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:01:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:01:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:01:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:01:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:01:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:01:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:01:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:01:25,673 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:01:25,676 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:01:26,187 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:01:26,288 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:01:26,288 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:01:26,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:01:26 BoogieIcfgContainer [2023-04-01 12:01:26,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:01:26,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:01:26,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:01:26,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:01:26,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:01:24" (1/3) ... [2023-04-01 12:01:26,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fd5b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:01:26, skipping insertion in model container [2023-04-01 12:01:26,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:01:25" (2/3) ... [2023-04-01 12:01:26,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fd5b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:01:26, skipping insertion in model container [2023-04-01 12:01:26,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:01:26" (3/3) ... [2023-04-01 12:01:26,299 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2023-04-01 12:01:26,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:01:26,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:01:26,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:01:26,379 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;@367fdfcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:01:26,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:01:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 59 states have (on average 1.271186440677966) internal successors, (75), 70 states have internal predecessors, (75), 42 states have call successors, (42), 26 states have call predecessors, (42), 26 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-04-01 12:01:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-01 12:01:26,395 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:26,396 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] [2023-04-01 12:01:26,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:26,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1645156211, now seen corresponding path program 1 times [2023-04-01 12:01:26,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:26,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390715010] [2023-04-01 12:01:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:26,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:26,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390715010] [2023-04-01 12:01:26,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390715010] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:26,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:26,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:01:26,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895025455] [2023-04-01 12:01:26,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:26,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:01:26,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:26,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:01:26,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:01:26,732 INFO L87 Difference]: Start difference. First operand has 131 states, 59 states have (on average 1.271186440677966) internal successors, (75), 70 states have internal predecessors, (75), 42 states have call successors, (42), 26 states have call predecessors, (42), 26 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:26,806 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2023-04-01 12:01:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:01:26,809 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-04-01 12:01:26,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:26,815 INFO L225 Difference]: With dead ends: 188 [2023-04-01 12:01:26,815 INFO L226 Difference]: Without dead ends: 96 [2023-04-01 12:01:26,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:01:26,821 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:26,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:01:26,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-04-01 12:01:26,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-04-01 12:01:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 57 states have internal predecessors, (60), 27 states have call successors, (27), 24 states have call predecessors, (27), 19 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-04-01 12:01:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2023-04-01 12:01:26,891 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 46 [2023-04-01 12:01:26,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:26,891 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2023-04-01 12:01:26,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2023-04-01 12:01:26,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 12:01:26,894 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:26,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:26,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:01:26,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:26,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:26,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1667472672, now seen corresponding path program 1 times [2023-04-01 12:01:26,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:26,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345421490] [2023-04-01 12:01:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:26,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:27,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:27,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:27,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345421490] [2023-04-01 12:01:27,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345421490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:27,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:27,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:01:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356615319] [2023-04-01 12:01:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:27,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:01:27,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:01:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:01:27,039 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:27,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:27,101 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2023-04-01 12:01:27,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:01:27,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-04-01 12:01:27,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:27,105 INFO L225 Difference]: With dead ends: 142 [2023-04-01 12:01:27,105 INFO L226 Difference]: Without dead ends: 88 [2023-04-01 12:01:27,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:01:27,106 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 9 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:27,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 155 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:01:27,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-04-01 12:01:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-04-01 12:01:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 52 states have internal predecessors, (54), 24 states have call successors, (24), 23 states have call predecessors, (24), 19 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-04-01 12:01:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2023-04-01 12:01:27,118 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 47 [2023-04-01 12:01:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:27,118 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2023-04-01 12:01:27,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:01:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2023-04-01 12:01:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-01 12:01:27,120 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:27,120 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] [2023-04-01 12:01:27,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:01:27,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:27,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1668058023, now seen corresponding path program 1 times [2023-04-01 12:01:27,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:27,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876084476] [2023-04-01 12:01:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:27,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:27,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:27,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876084476] [2023-04-01 12:01:27,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876084476] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:27,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:27,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:01:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465466444] [2023-04-01 12:01:27,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:27,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:01:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:27,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:01:27,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:01:27,457 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 12:01:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:27,678 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2023-04-01 12:01:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 12:01:27,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 50 [2023-04-01 12:01:27,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:27,682 INFO L225 Difference]: With dead ends: 151 [2023-04-01 12:01:27,682 INFO L226 Difference]: Without dead ends: 88 [2023-04-01 12:01:27,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 12:01:27,690 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 87 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:27,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 232 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:01:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-04-01 12:01:27,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-04-01 12:01:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 51 states have internal predecessors, (53), 24 states have call successors, (24), 23 states have call predecessors, (24), 19 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-04-01 12:01:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2023-04-01 12:01:27,709 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 50 [2023-04-01 12:01:27,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:27,710 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2023-04-01 12:01:27,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 12:01:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2023-04-01 12:01:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-01 12:01:27,711 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:27,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:27,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:01:27,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:27,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:27,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1400618836, now seen corresponding path program 1 times [2023-04-01 12:01:27,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039034604] [2023-04-01 12:01:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:27,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:27,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039034604] [2023-04-01 12:01:27,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039034604] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:27,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:27,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:01:27,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587760320] [2023-04-01 12:01:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:27,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:01:27,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:27,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:01:27,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:01:27,884 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-01 12:01:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:28,058 INFO L93 Difference]: Finished difference Result 206 states and 235 transitions. [2023-04-01 12:01:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:01:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 58 [2023-04-01 12:01:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:28,066 INFO L225 Difference]: With dead ends: 206 [2023-04-01 12:01:28,067 INFO L226 Difference]: Without dead ends: 143 [2023-04-01 12:01:28,069 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 [2023-04-01 12:01:28,078 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 57 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:28,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 343 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:01:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-04-01 12:01:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2023-04-01 12:01:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 84 states have internal predecessors, (87), 36 states have call successors, (36), 34 states have call predecessors, (36), 30 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-01 12:01:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2023-04-01 12:01:28,101 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 58 [2023-04-01 12:01:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:28,101 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2023-04-01 12:01:28,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-01 12:01:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2023-04-01 12:01:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-01 12:01:28,103 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:01:28,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:01:28,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:01:28,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:01:28,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:01:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1159007922, now seen corresponding path program 1 times [2023-04-01 12:01:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:01:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547343519] [2023-04-01 12:01:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:01:28,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:01:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:01:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:01:28,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:01:28,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547343519] [2023-04-01 12:01:28,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547343519] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:01:28,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:01:28,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:01:28,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540448250] [2023-04-01 12:01:28,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:01:28,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:01:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:01:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:01:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:01:28,269 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-01 12:01:28,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:01:28,448 INFO L93 Difference]: Finished difference Result 219 states and 252 transitions. [2023-04-01 12:01:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:01:28,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 61 [2023-04-01 12:01:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:01:28,450 INFO L225 Difference]: With dead ends: 219 [2023-04-01 12:01:28,450 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 12:01:28,451 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 [2023-04-01 12:01:28,451 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 59 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:01:28,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 117 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:01:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 12:01:28,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 12:01:28,452 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) [2023-04-01 12:01:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 12:01:28,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2023-04-01 12:01:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:01:28,453 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 12:01:28,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 4 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-01 12:01:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 12:01:28,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 12:01:28,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:01:28,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:01:28,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 12:01:29,063 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-01 12:01:29,063 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 604) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point L594-2(lines 594 615) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 569 624) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point L616(lines 593 617) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 569 624) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point L670(line 670) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point L670-1(line 670) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 625 684) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 661) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 625 684) no Hoare annotation was computed. [2023-04-01 12:01:29,064 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 625 684) no Hoare annotation was computed. [2023-04-01 12:01:29,065 INFO L899 garLoopResultBuilder]: For program point L651-2(lines 651 676) no Hoare annotation was computed. [2023-04-01 12:01:29,065 INFO L899 garLoopResultBuilder]: For program point L677(lines 650 678) no Hoare annotation was computed. [2023-04-01 12:01:29,065 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 417 425) no Hoare annotation was computed. [2023-04-01 12:01:29,065 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 417 425) the Hoare annotation is: true [2023-04-01 12:01:29,065 INFO L895 garLoopResultBuilder]: At program point L380(line 380) 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) (= main_~tmp~3 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:29,065 INFO L895 garLoopResultBuilder]: At program point L380-1(line 380) 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) (= main_~tmp~3 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:29,066 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 385) no Hoare annotation was computed. [2023-04-01 12:01:29,066 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 378 385) no Hoare annotation was computed. [2023-04-01 12:01:29,066 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 368 390) no Hoare annotation was computed. [2023-04-01 12:01:29,066 INFO L899 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2023-04-01 12:01:29,066 INFO L895 garLoopResultBuilder]: At program point L375(line 375) 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))) [2023-04-01 12:01:29,066 INFO L895 garLoopResultBuilder]: At program point L374(line 374) 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))) [2023-04-01 12:01:29,066 INFO L895 garLoopResultBuilder]: At program point L374-1(line 374) 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))) [2023-04-01 12:01:29,066 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 368 390) 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))) [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 322 345) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 322 345) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L340(line 340) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L339(line 339) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L338(line 338) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L337(line 337) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L336(line 336) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L335(line 335) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L334(line 334) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L333(line 333) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L332(line 332) no Hoare annotation was computed. [2023-04-01 12:01:29,067 INFO L899 garLoopResultBuilder]: For program point L331(line 331) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point L330(line 330) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 322 345) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point L329(line 329) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point L328(line 328) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point L327(line 327) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 193 211) the Hoare annotation is: true [2023-04-01 12:01:29,068 INFO L902 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: true [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point L200-1(line 200) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 193 211) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 403 409) no Hoare annotation was computed. [2023-04-01 12:01:29,068 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 403 409) the Hoare annotation is: true [2023-04-01 12:01:29,069 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 836 881) no Hoare annotation was computed. [2023-04-01 12:01:29,069 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 836 881) no Hoare annotation was computed. [2023-04-01 12:01:29,069 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 96 120) no Hoare annotation was computed. [2023-04-01 12:01:29,069 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,069 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 96 120) no Hoare annotation was computed. [2023-04-01 12:01:29,069 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,069 INFO L895 garLoopResultBuilder]: At program point L106(line 106) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,069 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 120) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,069 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 112) no Hoare annotation was computed. [2023-04-01 12:01:29,070 INFO L895 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,070 INFO L899 garLoopResultBuilder]: For program point L102-1(line 102) no Hoare annotation was computed. [2023-04-01 12:01:29,070 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 117) no Hoare annotation was computed. [2023-04-01 12:01:29,070 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 88 94) no Hoare annotation was computed. [2023-04-01 12:01:29,070 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 88 94) the Hoare annotation is: true [2023-04-01 12:01:29,070 INFO L895 garLoopResultBuilder]: At program point L256(line 256) 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))) [2023-04-01 12:01:29,070 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 260) no Hoare annotation was computed. [2023-04-01 12:01:29,070 INFO L899 garLoopResultBuilder]: For program point L254-1(lines 254 260) no Hoare annotation was computed. [2023-04-01 12:01:29,070 INFO L895 garLoopResultBuilder]: At program point L279(lines 234 281) 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))) [2023-04-01 12:01:29,070 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 224 289) no Hoare annotation was computed. [2023-04-01 12:01:29,071 INFO L895 garLoopResultBuilder]: At program point L246(line 246) 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))) [2023-04-01 12:01:29,071 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 250) no Hoare annotation was computed. [2023-04-01 12:01:29,071 INFO L899 garLoopResultBuilder]: For program point L244-1(lines 244 250) no Hoare annotation was computed. [2023-04-01 12:01:29,071 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 224 289) 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))) [2023-04-01 12:01:29,071 INFO L895 garLoopResultBuilder]: At program point L282(lines 233 283) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:29,071 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 264 277) 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))) [2023-04-01 12:01:29,071 INFO L899 garLoopResultBuilder]: For program point L235(lines 234 281) no Hoare annotation was computed. [2023-04-01 12:01:29,071 INFO L895 garLoopResultBuilder]: At program point L266(line 266) 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))) [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 277) no Hoare annotation was computed. [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 224 289) no Hoare annotation was computed. [2023-04-01 12:01:29,072 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 507 515) the Hoare annotation is: true [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 507 515) no Hoare annotation was computed. [2023-04-01 12:01:29,072 INFO L895 garLoopResultBuilder]: At program point L908(line 908) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point L906(lines 906 912) no Hoare annotation was computed. [2023-04-01 12:01:29,072 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 893 921) the Hoare annotation is: true [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 915) no Hoare annotation was computed. [2023-04-01 12:01:29,072 INFO L895 garLoopResultBuilder]: At program point L903(line 903) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point L903-1(line 903) no Hoare annotation was computed. [2023-04-01 12:01:29,072 INFO L899 garLoopResultBuilder]: For program point L901(lines 901 918) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point L901-1(lines 893 921) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 893 921) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L902 garLoopResultBuilder]: At program point L899(line 899) the Hoare annotation is: true [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point L899-1(line 899) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 475 497) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 475 497) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 885 892) the Hoare annotation is: true [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 885 892) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 121 128) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 121 128) no Hoare annotation was computed. [2023-04-01 12:01:29,073 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 498 506) no Hoare annotation was computed. [2023-04-01 12:01:29,074 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 498 506) no Hoare annotation was computed. [2023-04-01 12:01:29,074 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 466 474) the Hoare annotation is: true [2023-04-01 12:01:29,074 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 466 474) no Hoare annotation was computed. [2023-04-01 12:01:29,074 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,074 INFO L895 garLoopResultBuilder]: At program point L75(lines 75 81) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,074 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 64 87) no Hoare annotation was computed. [2023-04-01 12:01:29,074 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 64 87) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,074 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 64 87) no Hoare annotation was computed. [2023-04-01 12:01:29,074 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-04-01 12:01:29,074 INFO L899 garLoopResultBuilder]: For program point L68(lines 67 86) no Hoare annotation was computed. [2023-04-01 12:01:29,075 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 292 321) no Hoare annotation was computed. [2023-04-01 12:01:29,075 INFO L902 garLoopResultBuilder]: At program point L317(lines 292 321) the Hoare annotation is: true [2023-04-01 12:01:29,075 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2023-04-01 12:01:29,075 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 310) no Hoare annotation was computed. [2023-04-01 12:01:29,075 INFO L902 garLoopResultBuilder]: At program point L306-1(lines 306 310) the Hoare annotation is: true [2023-04-01 12:01:29,075 INFO L902 garLoopResultBuilder]: At program point L302-2(lines 302 316) the Hoare annotation is: true [2023-04-01 12:01:29,075 INFO L902 garLoopResultBuilder]: At program point L298(line 298) the Hoare annotation is: true [2023-04-01 12:01:29,075 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 292 321) the Hoare annotation is: true [2023-04-01 12:01:29,075 INFO L899 garLoopResultBuilder]: For program point L298-1(line 298) no Hoare annotation was computed. [2023-04-01 12:01:29,075 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 430 441) no Hoare annotation was computed. [2023-04-01 12:01:29,075 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 430 441) the Hoare annotation is: true [2023-04-01 12:01:29,075 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 212 219) no Hoare annotation was computed. [2023-04-01 12:01:29,076 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 212 219) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) [2023-04-01 12:01:29,076 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 442 453) no Hoare annotation was computed. [2023-04-01 12:01:29,076 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 442 453) the Hoare annotation is: true [2023-04-01 12:01:29,076 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 923 930) the Hoare annotation is: true [2023-04-01 12:01:29,076 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 927) no Hoare annotation was computed. [2023-04-01 12:01:29,076 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 923 930) no Hoare annotation was computed. [2023-04-01 12:01:29,076 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 410 416) the Hoare annotation is: true [2023-04-01 12:01:29,076 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 410 416) no Hoare annotation was computed. [2023-04-01 12:01:29,080 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 148 156) no Hoare annotation was computed. [2023-04-01 12:01:29,080 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 148 156) the Hoare annotation is: true [2023-04-01 12:01:29,080 INFO L899 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point L187-1(line 187) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 157 192) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 157 192) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 523 568) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 523 568) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 354 364) no Hoare annotation was computed. [2023-04-01 12:01:29,081 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 354 364) 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))) [2023-04-01 12:01:29,081 INFO L895 garLoopResultBuilder]: At program point L359(line 359) 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))) [2023-04-01 12:01:29,081 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 354 364) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 137 147) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 137 147) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 129 136) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 129 136) the Hoare annotation is: true [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 790 835) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 790 835) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 393 402) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 393 402) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point L737(lines 736 756) no Hoare annotation was computed. [2023-04-01 12:01:29,082 INFO L899 garLoopResultBuilder]: For program point L768(line 768) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 774) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L752(line 752) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L752-1(line 752) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 687 789) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 715) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 687 789) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L736-2(lines 736 756) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L757(lines 735 758) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 687 789) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 732) no Hoare annotation was computed. [2023-04-01 12:01:29,083 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-01 12:01:29,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:01:29,087 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 454 465) the Hoare annotation is: true [2023-04-01 12:01:29,087 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 454 465) no Hoare annotation was computed. [2023-04-01 12:01:29,087 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:01:29,091 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-01 12:01:29,092 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 346 352) no Hoare annotation was computed. [2023-04-01 12:01:29,092 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 346 352) the Hoare annotation is: true [2023-04-01 12:01:29,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 12:01:29,092 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-04-01 12:01:29,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 12:01:29,092 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 12:01:29,096 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 12:01:29,097 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:01:29,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:01:29 BoogieIcfgContainer [2023-04-01 12:01:29,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:01:29,109 INFO L158 Benchmark]: Toolchain (without parser) took 4189.76ms. Allocated memory is still 254.8MB. Free memory was 208.5MB in the beginning and 137.9MB in the end (delta: 70.6MB). Peak memory consumption was 71.1MB. Max. memory is 8.0GB. [2023-04-01 12:01:29,109 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:01:29,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.51ms. Allocated memory is still 254.8MB. Free memory was 208.5MB in the beginning and 189.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 12:01:29,110 INFO L158 Benchmark]: Boogie Preprocessor took 56.82ms. Allocated memory is still 254.8MB. Free memory was 189.6MB in the beginning and 186.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 12:01:29,110 INFO L158 Benchmark]: RCFGBuilder took 829.68ms. Allocated memory is still 254.8MB. Free memory was 186.5MB in the beginning and 127.2MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-04-01 12:01:29,110 INFO L158 Benchmark]: TraceAbstraction took 2814.47ms. Allocated memory is still 254.8MB. Free memory was 126.7MB in the beginning and 137.9MB in the end (delta: -11.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:01:29,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 482.51ms. Allocated memory is still 254.8MB. Free memory was 208.5MB in the beginning and 189.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.82ms. Allocated memory is still 254.8MB. Free memory was 189.6MB in the beginning and 186.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 829.68ms. Allocated memory is still 254.8MB. Free memory was 186.5MB in the beginning and 127.2MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2814.47ms. Allocated memory is still 254.8MB. Free memory was 126.7MB in the beginning and 137.9MB in the end (delta: -11.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 927]: 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 40 procedures, 176 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 951 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 570 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 381 mSDtfsCounter, 488 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=139occurred 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, 53 LocationsWithAnnotation, 231 PreInvPairs, 245 NumberOfFragments, 508 HoareAnnotationTreeSize, 231 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 53 FomulaSimplificationsInter, 748 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 462 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: 234]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1)) || ((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-01 12:01:29,130 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...