./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:19:57,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:19:57,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:19:57,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:19:57,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:19:57,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:19:57,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:19:57,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:19:57,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:19:57,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:19:57,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:19:57,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:19:57,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:19:57,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:19:57,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:19:57,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:19:57,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:19:57,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:19:57,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:19:57,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:19:57,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:19:57,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:19:57,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:19:57,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:19:57,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:19:57,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:19:57,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:19:57,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:19:57,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:19:57,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:19:57,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:19:57,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:19:57,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:19:57,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:19:57,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:19:57,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:19:57,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:19:57,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:19:57,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:19:57,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:19:57,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:19:57,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:19:57,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:19:57,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:19:57,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:19:57,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:19:57,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:19:57,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:19:57,670 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:19:57,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:19:57,671 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:19:57,671 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:19:57,672 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:19:57,672 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:19:57,673 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:19:57,673 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:19:57,673 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:19:57,673 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:19:57,674 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:19:57,674 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:19:57,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:19:57,675 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:19:57,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:19:57,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:19:57,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:19:57,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:19:57,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:19:57,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:19:57,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:19:57,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:19:57,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:19:57,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:19:57,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:19:57,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:19:57,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:19:57,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:19:57,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:19:57,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:19:57,679 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:19:57,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:19:57,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:19:57,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:19:57,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:19:57,680 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a14cd82fb4a7a8631dbac962b884aa1ac25841cd2c28c7e6e05438cc00132d3 [2021-11-21 00:19:57,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:19:58,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:19:58,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:19:58,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:19:58,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:19:58,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-11-21 00:19:58,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/data/119dd4543/7aaefa031035427ebe0c9e6165529470/FLAG75058d46b [2021-11-21 00:19:58,545 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:19:58,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-11-21 00:19:58,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/data/119dd4543/7aaefa031035427ebe0c9e6165529470/FLAG75058d46b [2021-11-21 00:19:58,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/data/119dd4543/7aaefa031035427ebe0c9e6165529470 [2021-11-21 00:19:58,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:19:58,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:19:58,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:19:58,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:19:58,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:19:58,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:19:58" (1/1) ... [2021-11-21 00:19:58,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd25851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:58, skipping insertion in model container [2021-11-21 00:19:58,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:19:58" (1/1) ... [2021-11-21 00:19:58,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:19:58,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:19:59,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-11-21 00:19:59,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:19:59,282 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:19:59,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c[20029,20042] [2021-11-21 00:19:59,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:19:59,380 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:19:59,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59 WrapperNode [2021-11-21 00:19:59,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:19:59,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:19:59,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:19:59,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:19:59,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,442 INFO L137 Inliner]: procedures = 63, calls = 178, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 342 [2021-11-21 00:19:59,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:19:59,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:19:59,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:19:59,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:19:59,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:19:59,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:19:59,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:19:59,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:19:59,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (1/1) ... [2021-11-21 00:19:59,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:19:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:19:59,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:19:59,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:19:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:19:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2021-11-21 00:19:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2021-11-21 00:19:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-21 00:19:59,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-21 00:19:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-21 00:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-21 00:19:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-21 00:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-21 00:19:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2021-11-21 00:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2021-11-21 00:19:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-21 00:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-21 00:19:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2021-11-21 00:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2021-11-21 00:19:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2021-11-21 00:19:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2021-11-21 00:19:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-21 00:19:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-21 00:19:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-21 00:19:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-21 00:19:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:19:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-11-21 00:19:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-11-21 00:19:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-21 00:19:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-21 00:19:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:19:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:19:59,645 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:19:59,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:20:00,062 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:20:00,164 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:20:00,174 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 00:20:00,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:20:00 BoogieIcfgContainer [2021-11-21 00:20:00,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:20:00,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:20:00,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:20:00,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:20:00,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:19:58" (1/3) ... [2021-11-21 00:20:00,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc73a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:20:00, skipping insertion in model container [2021-11-21 00:20:00,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:19:59" (2/3) ... [2021-11-21 00:20:00,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc73a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:20:00, skipping insertion in model container [2021-11-21 00:20:00,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:20:00" (3/3) ... [2021-11-21 00:20:00,187 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2021-11-21 00:20:00,195 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:20:00,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:20:00,250 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:20:00,256 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:20:00,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:20:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 82 states have internal predecessors, (93), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-21 00:20:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 00:20:00,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:00,294 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:00,295 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:00,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:00,317 INFO L85 PathProgramCache]: Analyzing trace with hash -928922007, now seen corresponding path program 1 times [2021-11-21 00:20:00,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945101747] [2021-11-21 00:20:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:00,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-21 00:20:00,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:00,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945101747] [2021-11-21 00:20:00,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945101747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:00,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:00,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:20:00,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500400428] [2021-11-21 00:20:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:00,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:20:00,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:20:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:20:00,638 INFO L87 Difference]: Start difference. First operand has 110 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 82 states have internal predecessors, (93), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 25 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:20:00,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:00,774 INFO L93 Difference]: Finished difference Result 204 states and 288 transitions. [2021-11-21 00:20:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:20:00,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 41 [2021-11-21 00:20:00,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:00,790 INFO L225 Difference]: With dead ends: 204 [2021-11-21 00:20:00,791 INFO L226 Difference]: Without dead ends: 105 [2021-11-21 00:20:00,795 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:20:00,805 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:00,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:20:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-21 00:20:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-21 00:20:00,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 78 states have internal predecessors, (85), 30 states have call successors, (30), 12 states have call predecessors, (30), 11 states have return successors, (29), 24 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-21 00:20:00,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2021-11-21 00:20:00,895 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 41 [2021-11-21 00:20:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:00,896 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2021-11-21 00:20:00,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:20:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2021-11-21 00:20:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 00:20:00,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:00,910 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:00,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:20:00,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:00,916 INFO L85 PathProgramCache]: Analyzing trace with hash 915564097, now seen corresponding path program 1 times [2021-11-21 00:20:00,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:00,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284802089] [2021-11-21 00:20:00,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:00,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-21 00:20:01,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:01,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284802089] [2021-11-21 00:20:01,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284802089] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:01,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:01,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:20:01,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886636815] [2021-11-21 00:20:01,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:01,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:20:01,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:20:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:20:01,053 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:20:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:01,138 INFO L93 Difference]: Finished difference Result 167 states and 229 transitions. [2021-11-21 00:20:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:20:01,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2021-11-21 00:20:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:01,142 INFO L225 Difference]: With dead ends: 167 [2021-11-21 00:20:01,142 INFO L226 Difference]: Without dead ends: 97 [2021-11-21 00:20:01,143 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:20:01,145 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 16 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:01,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 210 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:20:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-21 00:20:01,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-21 00:20:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 73 states have internal predecessors, (79), 27 states have call successors, (27), 11 states have call predecessors, (27), 11 states have return successors, (27), 22 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-21 00:20:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2021-11-21 00:20:01,174 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 42 [2021-11-21 00:20:01,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:01,174 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2021-11-21 00:20:01,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:20:01,174 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2021-11-21 00:20:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 00:20:01,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:01,177 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:01,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:20:01,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:01,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 303394441, now seen corresponding path program 1 times [2021-11-21 00:20:01,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:01,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101019991] [2021-11-21 00:20:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:01,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-21 00:20:01,328 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:01,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101019991] [2021-11-21 00:20:01,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101019991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:01,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:01,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:20:01,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273195139] [2021-11-21 00:20:01,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:01,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:20:01,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:01,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:20:01,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:20:01,335 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:20:01,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:01,593 INFO L93 Difference]: Finished difference Result 325 states and 461 transitions. [2021-11-21 00:20:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:20:01,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 45 [2021-11-21 00:20:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:01,599 INFO L225 Difference]: With dead ends: 325 [2021-11-21 00:20:01,599 INFO L226 Difference]: Without dead ends: 244 [2021-11-21 00:20:01,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:20:01,602 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 244 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:01,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 490 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:20:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-21 00:20:01,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2021-11-21 00:20:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 145 states have (on average 1.3655172413793104) internal successors, (198), 178 states have internal predecessors, (198), 58 states have call successors, (58), 27 states have call predecessors, (58), 27 states have return successors, (63), 48 states have call predecessors, (63), 58 states have call successors, (63) [2021-11-21 00:20:01,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 319 transitions. [2021-11-21 00:20:01,639 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 319 transitions. Word has length 45 [2021-11-21 00:20:01,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:01,640 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 319 transitions. [2021-11-21 00:20:01,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:20:01,640 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 319 transitions. [2021-11-21 00:20:01,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-21 00:20:01,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:01,644 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:01,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:20:01,644 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:01,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:01,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1870685329, now seen corresponding path program 1 times [2021-11-21 00:20:01,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:01,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362034973] [2021-11-21 00:20:01,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:01,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:20:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-21 00:20:01,751 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:20:01,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362034973] [2021-11-21 00:20:01,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362034973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:20:01,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:20:01,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:20:01,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704684585] [2021-11-21 00:20:01,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:20:01,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:20:01,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:20:01,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:20:01,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:20:01,756 INFO L87 Difference]: Start difference. First operand 231 states and 319 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 00:20:01,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:20:01,860 INFO L93 Difference]: Finished difference Result 661 states and 918 transitions. [2021-11-21 00:20:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:20:01,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2021-11-21 00:20:01,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:20:01,871 INFO L225 Difference]: With dead ends: 661 [2021-11-21 00:20:01,871 INFO L226 Difference]: Without dead ends: 446 [2021-11-21 00:20:01,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:20:01,874 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 107 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:20:01,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 238 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:20:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-21 00:20:01,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 440. [2021-11-21 00:20:01,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 341 states have internal predecessors, (379), 110 states have call successors, (110), 53 states have call predecessors, (110), 53 states have return successors, (120), 88 states have call predecessors, (120), 110 states have call successors, (120) [2021-11-21 00:20:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 609 transitions. [2021-11-21 00:20:01,948 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 609 transitions. Word has length 48 [2021-11-21 00:20:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:20:01,949 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 609 transitions. [2021-11-21 00:20:01,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 00:20:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 609 transitions. [2021-11-21 00:20:01,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 00:20:01,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:20:01,954 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:20:01,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:20:01,955 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:20:01,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:20:01,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1108395090, now seen corresponding path program 1 times [2021-11-21 00:20:01,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:20:01,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266156233] [2021-11-21 00:20:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:20:01,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:20:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:20:01,992 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:20:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:20:02,067 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:20:02,067 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:20:02,069 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:20:02,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:20:02,077 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-21 00:20:02,080 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:20:02,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:20:02 BoogieIcfgContainer [2021-11-21 00:20:02,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:20:02,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:20:02,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:20:02,183 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:20:02,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:20:00" (3/4) ... [2021-11-21 00:20:02,185 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 00:20:02,311 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:20:02,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:20:02,316 INFO L158 Benchmark]: Toolchain (without parser) took 3423.17ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.5MB in the beginning and 70.1MB in the end (delta: -2.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-11-21 00:20:02,317 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory was 49.3MB in the beginning and 49.3MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:20:02,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.03ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 71.0MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:20:02,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.70ms. Allocated memory is still 102.8MB. Free memory was 71.0MB in the beginning and 68.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:20:02,318 INFO L158 Benchmark]: Boogie Preprocessor took 35.33ms. Allocated memory is still 102.8MB. Free memory was 68.0MB in the beginning and 66.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:20:02,319 INFO L158 Benchmark]: RCFGBuilder took 697.30ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 40.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-21 00:20:02,319 INFO L158 Benchmark]: TraceAbstraction took 2002.76ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 39.5MB in the beginning and 78.5MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:20:02,319 INFO L158 Benchmark]: Witness Printer took 132.29ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 70.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:20:02,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 75.5MB. Free memory was 49.3MB in the beginning and 49.3MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.03ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 71.0MB in the end (delta: -3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.70ms. Allocated memory is still 102.8MB. Free memory was 71.0MB in the beginning and 68.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.33ms. Allocated memory is still 102.8MB. Free memory was 68.0MB in the beginning and 66.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 697.30ms. Allocated memory is still 102.8MB. Free memory was 66.4MB in the beginning and 40.3MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2002.76ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 39.5MB in the beginning and 78.5MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 132.29ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 70.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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: 1032]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L520] int __SELECTED_FEATURE_base ; [L521] int __SELECTED_FEATURE_highWaterSensor ; [L522] int __SELECTED_FEATURE_lowWaterSensor ; [L523] int __SELECTED_FEATURE_methaneQuery ; [L524] int __SELECTED_FEATURE_methaneAlarm ; [L525] int __SELECTED_FEATURE_stopCommand ; [L526] int __SELECTED_FEATURE_startCommand ; [L527] int __GUIDSL_ROOT_PRODUCTION ; [L615] int pumpRunning = 0; [L616] int systemActive = 1; [L1037] int waterLevel = 1; [L1038] int methaneLevelCritical = 0; [L497] int retValue_acc ; [L498] int tmp ; [L502] CALL select_helpers() [L978] __GUIDSL_ROOT_PRODUCTION = 1 [L502] RET select_helpers() [L503] CALL select_features() [L963] __SELECTED_FEATURE_base = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L964] CALL, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L964] RET, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, select_one()=0, systemActive=1, waterLevel=1] [L964] __SELECTED_FEATURE_highWaterSensor = select_one() [L965] CALL, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L965] RET, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, select_one()=0, systemActive=1, waterLevel=1] [L965] __SELECTED_FEATURE_lowWaterSensor = select_one() [L966] CALL, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L966] RET, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, select_one()=0, systemActive=1, waterLevel=1] [L966] __SELECTED_FEATURE_methaneQuery = select_one() [L967] CALL, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L967] RET, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, select_one()=0, systemActive=1, waterLevel=1] [L967] __SELECTED_FEATURE_methaneAlarm = select_one() [L968] CALL, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L968] RET, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, select_one()=1, systemActive=1, waterLevel=1] [L968] __SELECTED_FEATURE_stopCommand = select_one() [L969] CALL, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] int retValue_acc ; [L950] int choice = __VERIFIER_nondet_int(); [L953] retValue_acc = choice [L954] return (retValue_acc); [L969] RET, EXPR select_one() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, select_one()=0, systemActive=1, waterLevel=1] [L969] __SELECTED_FEATURE_startCommand = select_one() [L503] RET select_features() [L504] CALL, EXPR valid_product() [L983] int retValue_acc ; [L986] retValue_acc = __SELECTED_FEATURE_base [L987] return (retValue_acc); [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L531] int splverifierCounter ; [L532] int tmp ; [L533] int tmp___0 ; [L534] int tmp___1 ; [L535] int tmp___2 ; [L538] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L540] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L542] COND TRUE splverifierCounter < 4 [L548] tmp = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L552] CALL waterRise() VAL [\old(waterLevel)=1, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1055] COND TRUE waterLevel < 2 [L1056] waterLevel = waterLevel + 1 [L552] RET waterRise() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L558] tmp___0 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L568] tmp___2 = __VERIFIER_nondet_int() [L570] COND FALSE !(\read(tmp___2)) [L580] tmp___1 = __VERIFIER_nondet_int() [L582] COND TRUE \read(tmp___1) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L583] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L585] CALL stopSystem() [L927] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L934] systemActive = 0 [L585] RET stopSystem() [L595] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L623] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L630] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L638] CALL __utac_acc__Specification3_spec__1() [L995] int tmp ; [L996] int tmp___0 ; [L997] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1001] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1076] int retValue_acc ; [L1079] retValue_acc = methaneLevelCritical [L1080] return (retValue_acc); [L1001] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1001] tmp = isMethaneLevelCritical() [L1003] COND FALSE !(\read(tmp)) [L1007] CALL, EXPR getWaterLevel() [L1108] int retValue_acc ; [L1111] retValue_acc = waterLevel [L1112] return (retValue_acc); [L1007] RET, EXPR getWaterLevel() [L1007] tmp___0 = getWaterLevel() [L1009] COND TRUE tmp___0 == 2 [L1011] CALL, EXPR isPumpRunning() [L841] int retValue_acc ; [L844] retValue_acc = pumpRunning [L845] return (retValue_acc); [L1011] RET, EXPR isPumpRunning() [L1011] tmp___1 = isPumpRunning() [L1013] COND FALSE !(\read(tmp___1)) [L1017] CALL __automaton_fail() [L1032] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, __GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 367 mSDsluCounter, 1066 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 571 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 241 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 558 mSDtfsCounter, 241 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=440occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 120/120 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! [2021-11-21 00:20:02,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c4e4f22-3e3d-471d-9300-ca343fd0db0a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE