/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_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:00:38,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:00:38,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:00:38,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:00:38,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:00:38,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:00:38,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:00:38,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:00:38,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:00:38,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:00:38,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:00:38,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:00:38,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:00:38,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:00:38,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:00:38,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:00:38,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:00:38,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:00:38,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:00:38,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:00:38,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:00:38,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:00:38,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:00:38,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:00:38,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:00:38,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:00:38,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:00:38,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:00:38,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:00:38,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:00:38,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:00:38,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:00:38,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:00:38,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:00:38,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:00:38,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:00:38,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:00:38,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:00:38,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:00:38,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:00:38,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:00:38,685 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 12:00:38,699 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:00:38,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:00:38,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:00:38,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:00:38,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:00:38,701 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:00:38,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:00:38,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:00:38,702 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:00:38,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:00:38,702 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:00:38,702 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:00:38,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:00:38,702 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:00:38,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:00:38,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:00:38,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:00:38,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:00:38,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:00:38,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:00:38,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:00:38,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:00:38,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:00:38,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:00:38,882 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:00:38,883 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:00:38,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2023-04-01 12:00:40,150 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:00:40,347 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:00:40,347 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2023-04-01 12:00:40,355 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57442b301/04f86dccb907412192459a8d5e474636/FLAG03cebb2d4 [2023-04-01 12:00:40,365 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57442b301/04f86dccb907412192459a8d5e474636 [2023-04-01 12:00:40,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:00:40,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:00:40,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:00:40,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:00:40,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:00:40,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40, skipping insertion in model container [2023-04-01 12:00:40,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:00:40,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:00:40,503 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2023-04-01 12:00:40,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:00:40,576 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:00:40,591 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2023-04-01 12:00:40,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:00:40,634 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:00:40,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40 WrapperNode [2023-04-01 12:00:40,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:00:40,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:00:40,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:00:40,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:00:40,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:00:40,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:00:40,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:00:40,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:00:40,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (1/1) ... [2023-04-01 12:00:40,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:00:40,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:00:40,716 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 12:00:40,720 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 12:00:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:00:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:00:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:00:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:00:40,851 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:00:40,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:00:41,424 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:00:41,505 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:00:41,505 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:00:41,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:00:41 BoogieIcfgContainer [2023-04-01 12:00:41,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:00:41,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:00:41,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:00:41,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:00:41,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:00:40" (1/3) ... [2023-04-01 12:00:41,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7beb3dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:00:41, skipping insertion in model container [2023-04-01 12:00:41,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:00:40" (2/3) ... [2023-04-01 12:00:41,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7beb3dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:00:41, skipping insertion in model container [2023-04-01 12:00:41,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:00:41" (3/3) ... [2023-04-01 12:00:41,513 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2023-04-01 12:00:41,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:00:41,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:00:41,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:00:41,565 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;@5e12c9c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:00:41,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:00:41,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 61 states have (on average 1.278688524590164) internal successors, (78), 74 states have internal predecessors, (78), 43 states have call successors, (43), 27 states have call predecessors, (43), 27 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2023-04-01 12:00:41,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 12:00:41,576 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:41,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:41,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:41,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:41,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1080174352, now seen corresponding path program 1 times [2023-04-01 12:00:41,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:41,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698201171] [2023-04-01 12:00:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:41,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:41,718 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 12:00:41,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:41,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698201171] [2023-04-01 12:00:41,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698201171] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:41,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:41,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:00:41,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232424340] [2023-04-01 12:00:41,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:41,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:00:41,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:41,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:00:41,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:00:41,745 INFO L87 Difference]: Start difference. First operand has 135 states, 61 states have (on average 1.278688524590164) internal successors, (78), 74 states have internal predecessors, (78), 43 states have call successors, (43), 27 states have call predecessors, (43), 27 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:41,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:41,815 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2023-04-01 12:00:41,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:00:41,817 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-01 12:00:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:41,825 INFO L225 Difference]: With dead ends: 199 [2023-04-01 12:00:41,825 INFO L226 Difference]: Without dead ends: 100 [2023-04-01 12:00:41,829 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 12:00:41,833 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:41,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:00:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-01 12:00:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-04-01 12:00:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 61 states have internal predecessors, (63), 28 states have call successors, (28), 25 states have call predecessors, (28), 20 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 12:00:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2023-04-01 12:00:41,881 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 42 [2023-04-01 12:00:41,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:41,882 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2023-04-01 12:00:41,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2023-04-01 12:00:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 12:00:41,887 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:41,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:41,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:00:41,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:41,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash -412801857, now seen corresponding path program 1 times [2023-04-01 12:00:41,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:41,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945166877] [2023-04-01 12:00:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:41,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:41,978 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 12:00:41,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:41,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945166877] [2023-04-01 12:00:41,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945166877] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:41,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:41,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:00:41,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470537775] [2023-04-01 12:00:41,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:41,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:00:41,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:41,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:00:41,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:00:41,981 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:42,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:42,026 INFO L93 Difference]: Finished difference Result 145 states and 164 transitions. [2023-04-01 12:00:42,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:00:42,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-01 12:00:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:42,029 INFO L225 Difference]: With dead ends: 145 [2023-04-01 12:00:42,029 INFO L226 Difference]: Without dead ends: 92 [2023-04-01 12:00:42,031 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 12:00:42,032 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:42,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 161 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:00:42,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-04-01 12:00:42,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-04-01 12:00:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 56 states have internal predecessors, (57), 25 states have call successors, (25), 24 states have call predecessors, (25), 20 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-01 12:00:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2023-04-01 12:00:42,040 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 43 [2023-04-01 12:00:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:42,040 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2023-04-01 12:00:42,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 12:00:42,043 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2023-04-01 12:00:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 12:00:42,045 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:42,046 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 12:00:42,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:00:42,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:42,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:42,049 INFO L85 PathProgramCache]: Analyzing trace with hash -854719950, now seen corresponding path program 1 times [2023-04-01 12:00:42,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:42,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792544222] [2023-04-01 12:00:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:42,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:42,343 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 12:00:42,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:42,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792544222] [2023-04-01 12:00:42,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792544222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:42,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:42,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:00:42,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041533385] [2023-04-01 12:00:42,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:42,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:00:42,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:42,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:00:42,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:00:42,348 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 12:00:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:42,600 INFO L93 Difference]: Finished difference Result 277 states and 325 transitions. [2023-04-01 12:00:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:00:42,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2023-04-01 12:00:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:42,602 INFO L225 Difference]: With dead ends: 277 [2023-04-01 12:00:42,602 INFO L226 Difference]: Without dead ends: 207 [2023-04-01 12:00:42,603 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 12:00:42,604 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 157 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:42,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 448 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 12:00:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-04-01 12:00:42,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 185. [2023-04-01 12:00:42,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 100 states have (on average 1.27) internal successors, (127), 117 states have internal predecessors, (127), 45 states have call successors, (45), 43 states have call predecessors, (45), 39 states have return successors, (42), 37 states have call predecessors, (42), 41 states have call successors, (42) [2023-04-01 12:00:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 214 transitions. [2023-04-01 12:00:42,624 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 214 transitions. Word has length 47 [2023-04-01 12:00:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:42,625 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 214 transitions. [2023-04-01 12:00:42,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 12:00:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 214 transitions. [2023-04-01 12:00:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 12:00:42,626 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:42,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:42,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:00:42,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:42,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:42,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1657798479, now seen corresponding path program 1 times [2023-04-01 12:00:42,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:42,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106620517] [2023-04-01 12:00:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:42,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:42,742 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 12:00:42,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106620517] [2023-04-01 12:00:42,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106620517] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:42,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:42,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:00:42,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484287097] [2023-04-01 12:00:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:42,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:00:42,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:42,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:00:42,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:00:42,744 INFO L87 Difference]: Start difference. First operand 185 states and 214 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 12:00:42,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:42,865 INFO L93 Difference]: Finished difference Result 496 states and 591 transitions. [2023-04-01 12:00:42,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 12:00:42,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2023-04-01 12:00:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:42,872 INFO L225 Difference]: With dead ends: 496 [2023-04-01 12:00:42,872 INFO L226 Difference]: Without dead ends: 333 [2023-04-01 12:00:42,875 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 12:00:42,881 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 65 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:42,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 373 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:00:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-04-01 12:00:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 321. [2023-04-01 12:00:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 178 states have (on average 1.2696629213483146) internal successors, (226), 208 states have internal predecessors, (226), 75 states have call successors, (75), 71 states have call predecessors, (75), 67 states have return successors, (73), 63 states have call predecessors, (73), 71 states have call successors, (73) [2023-04-01 12:00:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 374 transitions. [2023-04-01 12:00:42,912 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 374 transitions. Word has length 51 [2023-04-01 12:00:42,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:42,913 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 374 transitions. [2023-04-01 12:00:42,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-01 12:00:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 374 transitions. [2023-04-01 12:00:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-01 12:00:42,915 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:42,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:42,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:00:42,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:42,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash -752063737, now seen corresponding path program 1 times [2023-04-01 12:00:42,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:42,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302567491] [2023-04-01 12:00:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:43,042 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 12:00:43,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302567491] [2023-04-01 12:00:43,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302567491] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:43,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:43,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:00:43,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045588149] [2023-04-01 12:00:43,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:43,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:00:43,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:43,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:00:43,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:00:43,043 INFO L87 Difference]: Start difference. First operand 321 states and 374 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-01 12:00:43,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:43,364 INFO L93 Difference]: Finished difference Result 869 states and 1106 transitions. [2023-04-01 12:00:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 12:00:43,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-04-01 12:00:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:43,367 INFO L225 Difference]: With dead ends: 869 [2023-04-01 12:00:43,367 INFO L226 Difference]: Without dead ends: 570 [2023-04-01 12:00:43,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-04-01 12:00:43,368 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 119 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:43,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 225 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 12:00:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-04-01 12:00:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 493. [2023-04-01 12:00:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 282 states have (on average 1.2234042553191489) internal successors, (345), 310 states have internal predecessors, (345), 105 states have call successors, (105), 101 states have call predecessors, (105), 105 states have return successors, (131), 103 states have call predecessors, (131), 101 states have call successors, (131) [2023-04-01 12:00:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 581 transitions. [2023-04-01 12:00:43,404 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 581 transitions. Word has length 54 [2023-04-01 12:00:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:43,404 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 581 transitions. [2023-04-01 12:00:43,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-01 12:00:43,404 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 581 transitions. [2023-04-01 12:00:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-01 12:00:43,406 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:43,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:43,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:00:43,406 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:43,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1453278479, now seen corresponding path program 1 times [2023-04-01 12:00:43,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:43,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899761143] [2023-04-01 12:00:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:43,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:00:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:00:43,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:00:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899761143] [2023-04-01 12:00:43,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899761143] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:00:43,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:00:43,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-01 12:00:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224190386] [2023-04-01 12:00:43,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:00:43,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 12:00:43,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:00:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 12:00:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-01 12:00:43,634 INFO L87 Difference]: Start difference. First operand 493 states and 581 transitions. Second operand has 12 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-01 12:00:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:00:44,116 INFO L93 Difference]: Finished difference Result 1597 states and 1916 transitions. [2023-04-01 12:00:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 12:00:44,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 67 [2023-04-01 12:00:44,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:00:44,121 INFO L225 Difference]: With dead ends: 1597 [2023-04-01 12:00:44,121 INFO L226 Difference]: Without dead ends: 1126 [2023-04-01 12:00:44,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-01 12:00:44,122 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 258 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 12:00:44,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 700 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 12:00:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2023-04-01 12:00:44,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1095. [2023-04-01 12:00:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 660 states have (on average 1.2287878787878788) internal successors, (811), 710 states have internal predecessors, (811), 217 states have call successors, (217), 217 states have call predecessors, (217), 217 states have return successors, (271), 213 states have call predecessors, (271), 213 states have call successors, (271) [2023-04-01 12:00:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1299 transitions. [2023-04-01 12:00:44,190 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1299 transitions. Word has length 67 [2023-04-01 12:00:44,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:00:44,191 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1299 transitions. [2023-04-01 12:00:44,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-01 12:00:44,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1299 transitions. [2023-04-01 12:00:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-01 12:00:44,192 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:00:44,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:44,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 12:00:44,193 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:00:44,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:00:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1120444975, now seen corresponding path program 1 times [2023-04-01 12:00:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:00:44,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484079452] [2023-04-01 12:00:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:00:44,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:00:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:00:44,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 12:00:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:00:44,253 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 12:00:44,253 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 12:00:44,254 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:00:44,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 12:00:44,257 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:00:44,260 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:00:44,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:00:44 BoogieIcfgContainer [2023-04-01 12:00:44,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:00:44,314 INFO L158 Benchmark]: Toolchain (without parser) took 3945.85ms. Allocated memory was 189.8MB in the beginning and 263.2MB in the end (delta: 73.4MB). Free memory was 150.3MB in the beginning and 130.6MB in the end (delta: 19.7MB). Peak memory consumption was 93.8MB. Max. memory is 8.0GB. [2023-04-01 12:00:44,314 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 189.8MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:00:44,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.63ms. Allocated memory is still 189.8MB. Free memory was 150.0MB in the beginning and 131.7MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 12:00:44,315 INFO L158 Benchmark]: Boogie Preprocessor took 44.96ms. Allocated memory is still 189.8MB. Free memory was 131.7MB in the beginning and 128.3MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 12:00:44,315 INFO L158 Benchmark]: RCFGBuilder took 826.71ms. Allocated memory is still 189.8MB. Free memory was 128.3MB in the beginning and 129.6MB in the end (delta: -1.3MB). Peak memory consumption was 36.6MB. Max. memory is 8.0GB. [2023-04-01 12:00:44,315 INFO L158 Benchmark]: TraceAbstraction took 2804.86ms. Allocated memory was 189.8MB in the beginning and 263.2MB in the end (delta: 73.4MB). Free memory was 129.1MB in the beginning and 130.6MB in the end (delta: -1.5MB). Peak memory consumption was 71.9MB. Max. memory is 8.0GB. [2023-04-01 12:00:44,316 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 189.8MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 265.63ms. Allocated memory is still 189.8MB. Free memory was 150.0MB in the beginning and 131.7MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.96ms. Allocated memory is still 189.8MB. Free memory was 131.7MB in the beginning and 128.3MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 826.71ms. Allocated memory is still 189.8MB. Free memory was 128.3MB in the beginning and 129.6MB in the end (delta: -1.3MB). Peak memory consumption was 36.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2804.86ms. Allocated memory was 189.8MB in the beginning and 263.2MB in the end (delta: 73.4MB). Free memory was 129.1MB in the beginning and 130.6MB in the end (delta: -1.5MB). Peak memory consumption was 71.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L249] int waterLevel = 1; [L250] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L922] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L923] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] int retValue_acc ; [L445] retValue_acc = 1 [L446] return (retValue_acc); [L923] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L927] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L928] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L910] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L354] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L356] COND TRUE splverifierCounter < 4 [L362] tmp = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L366] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] COND TRUE waterLevel < 2 [L268] waterLevel = waterLevel + 1 [L366] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L376] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methaneLevelCritical)) [L282] methaneLevelCritical = 1 [L376] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND FALSE !(\read(tmp___2)) [L390] tmp___1 = __VERIFIER_nondet_int() [L392] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L401] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L85] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L87] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L107] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L110] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L112] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L204] int retValue_acc ; [L205] int tmp ; [L206] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L329] int retValue_acc ; [L332] COND FALSE !(waterLevel < 2) [L336] retValue_acc = 0 [L337] return (retValue_acc); [L210] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp = isHighWaterSensorDry() [L212] COND FALSE !(\read(tmp)) [L215] tmp___0 = 1 [L217] retValue_acc = tmp___0 [L218] return (retValue_acc); [L112] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L112] tmp = isHighWaterLevel() [L114] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L116] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L135] pumpRunning = 1 [L116] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L87] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L818] int tmp ; [L819] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L288] int retValue_acc ; [L291] retValue_acc = methaneLevelCritical [L292] return (retValue_acc); [L823] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] tmp = isMethaneLevelCritical() [L825] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L827] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] int retValue_acc ; [L162] retValue_acc = pumpRunning [L163] return (retValue_acc); [L827] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L827] tmp___0 = isPumpRunning() [L829] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L831] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L54] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 178 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 630 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 610 mSDsluCounter, 2016 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1442 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1243 IncrementalHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 574 mSDtfsCounter, 1243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1095occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 142 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 603 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-01 12:00:44,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...