./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V --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 b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:21:07,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:21:07,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:21:07,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:21:07,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:21:07,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:21:07,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:21:07,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:21:07,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:21:07,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:21:07,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:21:07,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:21:07,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:21:07,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:21:07,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:21:07,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:21:07,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:21:07,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:21:07,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:21:07,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:21:07,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:21:07,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:21:07,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:21:07,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:21:07,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:21:07,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:21:07,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:21:07,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:21:07,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:21:07,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:21:07,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:21:07,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:21:07,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:21:07,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:21:07,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:21:07,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:21:07,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:21:07,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:21:07,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:21:07,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:21:07,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:21:07,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:21:07,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:21:07,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:21:07,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:21:07,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:21:07,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:21:07,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:21:07,488 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:21:07,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:21:07,489 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:21:07,489 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:21:07,490 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:21:07,490 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:21:07,491 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:21:07,491 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:21:07,491 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:21:07,492 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:21:07,492 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:21:07,493 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:21:07,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:21:07,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:21:07,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:21:07,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:21:07,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:21:07,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:21:07,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:21:07,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:21:07,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:21:07,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:21:07,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:21:07,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:21:07,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:21:07,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:21:07,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:21:07,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:21:07,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:21:07,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:21:07,513 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:21:07,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:21:07,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:21:07,514 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:21:07,514 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:21:07,514 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_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a [2021-11-23 02:21:07,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:21:07,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:21:07,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:21:07,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:21:07,822 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:21:07,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2021-11-23 02:21:07,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/data/018b64c40/3cd01abf126f4c868a784db1765802f0/FLAG1015e14b0 [2021-11-23 02:21:08,427 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:21:08,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2021-11-23 02:21:08,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/data/018b64c40/3cd01abf126f4c868a784db1765802f0/FLAG1015e14b0 [2021-11-23 02:21:08,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/data/018b64c40/3cd01abf126f4c868a784db1765802f0 [2021-11-23 02:21:08,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:21:08,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:21:08,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:21:08,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:21:08,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:21:08,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:08" (1/1) ... [2021-11-23 02:21:08,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@239284ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:08, skipping insertion in model container [2021-11-23 02:21:08,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:08" (1/1) ... [2021-11-23 02:21:08,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:21:08,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:21:09,098 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_7f44c581-b63d-40ee-82df-ed1744cec29e/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2021-11-23 02:21:09,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:21:09,252 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:21:09,289 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_7f44c581-b63d-40ee-82df-ed1744cec29e/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2021-11-23 02:21:09,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:21:09,377 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:21:09,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09 WrapperNode [2021-11-23 02:21:09,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:21:09,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:21:09,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:21:09,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:21:09,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,474 INFO L137 Inliner]: procedures = 60, calls = 165, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 299 [2021-11-23 02:21:09,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:21:09,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:21:09,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:21:09,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:21:09,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:21:09,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:21:09,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:21:09,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:21:09,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (1/1) ... [2021-11-23 02:21:09,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:21:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:21:09,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:21:09,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:21:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:21:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:21:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:21:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:21:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:21:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:21:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:21:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:21:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:21:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:21:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:21:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:21:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:21:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:21:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:21:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 02:21:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 02:21:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 02:21:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 02:21:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:21:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:21:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:21:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:21:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:21:09,779 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:21:09,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:21:10,107 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:21:10,226 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:21:10,227 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:21:10,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:10 BoogieIcfgContainer [2021-11-23 02:21:10,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:21:10,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:21:10,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:21:10,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:21:10,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:08" (1/3) ... [2021-11-23 02:21:10,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a68baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:10, skipping insertion in model container [2021-11-23 02:21:10,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:09" (2/3) ... [2021-11-23 02:21:10,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a68baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:10, skipping insertion in model container [2021-11-23 02:21:10,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:10" (3/3) ... [2021-11-23 02:21:10,247 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2021-11-23 02:21:10,252 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:21:10,253 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:21:10,302 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:21:10,310 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 [2021-11-23 02:21:10,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:21:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-23 02:21:10,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:21:10,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:10,370 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:10,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1367258911, now seen corresponding path program 1 times [2021-11-23 02:21:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694750982] [2021-11-23 02:21:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:10,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:21:10,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:10,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694750982] [2021-11-23 02:21:10,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694750982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:10,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:10,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:21:10,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071787240] [2021-11-23 02:21:10,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:10,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:21:10,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:10,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:21:10,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:21:10,645 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:21:10,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:10,767 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2021-11-23 02:21:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:21:10,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 02:21:10,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:10,783 INFO L225 Difference]: With dead ends: 158 [2021-11-23 02:21:10,783 INFO L226 Difference]: Without dead ends: 75 [2021-11-23 02:21:10,789 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 [2021-11-23 02:21:10,793 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:10,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:21:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-23 02:21:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-23 02:21:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 56 states have internal predecessors, (62), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-23 02:21:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2021-11-23 02:21:10,853 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 21 [2021-11-23 02:21:10,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:10,853 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2021-11-23 02:21:10,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:21:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2021-11-23 02:21:10,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:21:10,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:10,857 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:10,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:21:10,858 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:10,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:10,859 INFO L85 PathProgramCache]: Analyzing trace with hash 735666244, now seen corresponding path program 1 times [2021-11-23 02:21:10,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:10,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490897033] [2021-11-23 02:21:10,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:10,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:21:10,985 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:10,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490897033] [2021-11-23 02:21:10,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490897033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:10,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:10,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:21:10,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324671393] [2021-11-23 02:21:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:10,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:21:10,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:10,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:21:10,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:21:10,991 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:21:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:11,096 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2021-11-23 02:21:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:21:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-23 02:21:11,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:11,100 INFO L225 Difference]: With dead ends: 122 [2021-11-23 02:21:11,100 INFO L226 Difference]: Without dead ends: 67 [2021-11-23 02:21:11,101 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 [2021-11-23 02:21:11,103 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:11,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 129 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:21:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-23 02:21:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-23 02:21:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 51 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 02:21:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 88 transitions. [2021-11-23 02:21:11,118 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 88 transitions. Word has length 22 [2021-11-23 02:21:11,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:11,119 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 88 transitions. [2021-11-23 02:21:11,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:21:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2021-11-23 02:21:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:21:11,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:11,121 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:11,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:21:11,122 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:11,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:11,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2139523816, now seen corresponding path program 1 times [2021-11-23 02:21:11,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:11,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346747112] [2021-11-23 02:21:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:11,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:21:11,240 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:11,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346747112] [2021-11-23 02:21:11,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346747112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:11,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:11,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:21:11,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391259116] [2021-11-23 02:21:11,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:11,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:21:11,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:11,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:21:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:21:11,244 INFO L87 Difference]: Start difference. First operand 67 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:21:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:11,323 INFO L93 Difference]: Finished difference Result 197 states and 261 transitions. [2021-11-23 02:21:11,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:21:11,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-23 02:21:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:11,327 INFO L225 Difference]: With dead ends: 197 [2021-11-23 02:21:11,327 INFO L226 Difference]: Without dead ends: 132 [2021-11-23 02:21:11,329 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 [2021-11-23 02:21:11,330 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 73 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:11,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 170 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:21:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-23 02:21:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2021-11-23 02:21:11,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 97 states have internal predecessors, (107), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-23 02:21:11,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 171 transitions. [2021-11-23 02:21:11,361 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 171 transitions. Word has length 25 [2021-11-23 02:21:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:11,362 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 171 transitions. [2021-11-23 02:21:11,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:21:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 171 transitions. [2021-11-23 02:21:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 02:21:11,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:11,365 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:11,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:21:11,366 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:11,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:11,367 INFO L85 PathProgramCache]: Analyzing trace with hash 671873530, now seen corresponding path program 1 times [2021-11-23 02:21:11,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:11,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579131420] [2021-11-23 02:21:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:11,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:21:11,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:11,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579131420] [2021-11-23 02:21:11,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579131420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:11,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:11,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:21:11,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902863111] [2021-11-23 02:21:11,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:11,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:21:11,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:11,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:21:11,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:21:11,457 INFO L87 Difference]: Start difference. First operand 129 states and 171 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:21:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:11,744 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2021-11-23 02:21:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:21:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-11-23 02:21:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:11,755 INFO L225 Difference]: With dead ends: 350 [2021-11-23 02:21:11,755 INFO L226 Difference]: Without dead ends: 223 [2021-11-23 02:21:11,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:21:11,767 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 45 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:11,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 348 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:21:11,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-23 02:21:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 214. [2021-11-23 02:21:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 137 states have (on average 1.2919708029197081) internal successors, (177), 154 states have internal predecessors, (177), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2021-11-23 02:21:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 273 transitions. [2021-11-23 02:21:11,835 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 273 transitions. Word has length 28 [2021-11-23 02:21:11,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:11,836 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 273 transitions. [2021-11-23 02:21:11,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:21:11,837 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 273 transitions. [2021-11-23 02:21:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 02:21:11,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:11,839 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:11,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:21:11,840 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:11,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:11,840 INFO L85 PathProgramCache]: Analyzing trace with hash -802916337, now seen corresponding path program 1 times [2021-11-23 02:21:11,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:11,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334109062] [2021-11-23 02:21:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:11,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:21:11,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:11,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334109062] [2021-11-23 02:21:11,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334109062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:11,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:11,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:21:11,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986965287] [2021-11-23 02:21:11,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:11,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:21:11,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:21:11,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:21:11,990 INFO L87 Difference]: Start difference. First operand 214 states and 273 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:21:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:12,286 INFO L93 Difference]: Finished difference Result 622 states and 794 transitions. [2021-11-23 02:21:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:21:12,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 42 [2021-11-23 02:21:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:12,292 INFO L225 Difference]: With dead ends: 622 [2021-11-23 02:21:12,292 INFO L226 Difference]: Without dead ends: 410 [2021-11-23 02:21:12,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:21:12,295 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 103 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:12,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 372 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:21:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-23 02:21:12,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 400. [2021-11-23 02:21:12,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 259 states have (on average 1.277992277992278) internal successors, (331), 287 states have internal predecessors, (331), 75 states have call successors, (75), 63 states have call predecessors, (75), 65 states have return successors, (99), 68 states have call predecessors, (99), 75 states have call successors, (99) [2021-11-23 02:21:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 505 transitions. [2021-11-23 02:21:12,358 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 505 transitions. Word has length 42 [2021-11-23 02:21:12,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:12,358 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 505 transitions. [2021-11-23 02:21:12,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:21:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 505 transitions. [2021-11-23 02:21:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 02:21:12,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:12,368 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:12,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:21:12,369 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:12,370 INFO L85 PathProgramCache]: Analyzing trace with hash 258075070, now seen corresponding path program 1 times [2021-11-23 02:21:12,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:12,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264721833] [2021-11-23 02:21:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:12,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:21:12,596 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:12,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264721833] [2021-11-23 02:21:12,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264721833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:12,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:12,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:21:12,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448472737] [2021-11-23 02:21:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:12,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:21:12,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:21:12,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:21:12,601 INFO L87 Difference]: Start difference. First operand 400 states and 505 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-23 02:21:13,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:13,265 INFO L93 Difference]: Finished difference Result 944 states and 1217 transitions. [2021-11-23 02:21:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 02:21:13,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2021-11-23 02:21:13,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:13,274 INFO L225 Difference]: With dead ends: 944 [2021-11-23 02:21:13,275 INFO L226 Difference]: Without dead ends: 658 [2021-11-23 02:21:13,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:21:13,279 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 326 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:13,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 292 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:21:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-11-23 02:21:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 594. [2021-11-23 02:21:13,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 390 states have (on average 1.2692307692307692) internal successors, (495), 430 states have internal predecessors, (495), 108 states have call successors, (108), 82 states have call predecessors, (108), 95 states have return successors, (147), 107 states have call predecessors, (147), 108 states have call successors, (147) [2021-11-23 02:21:13,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 750 transitions. [2021-11-23 02:21:13,378 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 750 transitions. Word has length 45 [2021-11-23 02:21:13,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:13,380 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 750 transitions. [2021-11-23 02:21:13,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-23 02:21:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 750 transitions. [2021-11-23 02:21:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:21:13,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:13,387 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:13,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:21:13,388 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:13,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:13,390 INFO L85 PathProgramCache]: Analyzing trace with hash 964910539, now seen corresponding path program 1 times [2021-11-23 02:21:13,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:13,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825301809] [2021-11-23 02:21:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:13,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:13,478 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:21:13,478 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:13,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825301809] [2021-11-23 02:21:13,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825301809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:21:13,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:21:13,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:21:13,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401470904] [2021-11-23 02:21:13,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:21:13,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:21:13,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:13,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:21:13,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:21:13,482 INFO L87 Difference]: Start difference. First operand 594 states and 750 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-23 02:21:13,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:13,629 INFO L93 Difference]: Finished difference Result 700 states and 884 transitions. [2021-11-23 02:21:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:21:13,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2021-11-23 02:21:13,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:13,634 INFO L225 Difference]: With dead ends: 700 [2021-11-23 02:21:13,634 INFO L226 Difference]: Without dead ends: 287 [2021-11-23 02:21:13,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:21:13,637 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 113 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:13,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 154 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:21:13,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-23 02:21:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2021-11-23 02:21:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 207 states have internal predecessors, (231), 51 states have call successors, (51), 39 states have call predecessors, (51), 46 states have return successors, (70), 52 states have call predecessors, (70), 51 states have call successors, (70) [2021-11-23 02:21:13,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 352 transitions. [2021-11-23 02:21:13,671 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 352 transitions. Word has length 66 [2021-11-23 02:21:13,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:13,672 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 352 transitions. [2021-11-23 02:21:13,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-23 02:21:13,673 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 352 transitions. [2021-11-23 02:21:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 02:21:13,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:13,675 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:13,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:21:13,675 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:13,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:13,676 INFO L85 PathProgramCache]: Analyzing trace with hash -170410244, now seen corresponding path program 1 times [2021-11-23 02:21:13,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:13,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427083805] [2021-11-23 02:21:13,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:13,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:21:13,960 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:13,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427083805] [2021-11-23 02:21:13,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427083805] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:21:13,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495578057] [2021-11-23 02:21:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:13,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:21:13,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:21:13,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:21:13,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:21:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:14,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:21:14,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:21:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:21:14,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:21:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:21:14,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495578057] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:21:14,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [557865036] [2021-11-23 02:21:14,941 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2021-11-23 02:21:14,941 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:21:14,946 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:21:14,952 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:21:14,953 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:21:22,114 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 52 for LOIs [2021-11-23 02:21:22,128 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 51 for LOIs [2021-11-23 02:21:22,902 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2021-11-23 02:21:22,905 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 43 for LOIs [2021-11-23 02:21:22,974 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2021-11-23 02:21:23,120 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 28 for LOIs [2021-11-23 02:21:23,129 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:21:28,933 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7943#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |#NULL.offset| 0) (= |old(~pumpRunning~0)| 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= ~head~0.base 0) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 0 |#NULL.offset|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 1) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2021-11-23 02:21:28,933 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:21:28,933 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:21:28,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 14 [2021-11-23 02:21:28,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127340619] [2021-11-23 02:21:28,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:21:28,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 02:21:28,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 02:21:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1747, Unknown=0, NotChecked=0, Total=1980 [2021-11-23 02:21:28,937 INFO L87 Difference]: Start difference. First operand 287 states and 352 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-23 02:21:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:30,516 INFO L93 Difference]: Finished difference Result 812 states and 1029 transitions. [2021-11-23 02:21:30,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-23 02:21:30,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 80 [2021-11-23 02:21:30,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:30,522 INFO L225 Difference]: With dead ends: 812 [2021-11-23 02:21:30,522 INFO L226 Difference]: Without dead ends: 527 [2021-11-23 02:21:30,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 201 SyntacticMatches, 20 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2083 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=586, Invalid=4106, Unknown=0, NotChecked=0, Total=4692 [2021-11-23 02:21:30,526 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 563 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:30,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 411 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 02:21:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-11-23 02:21:30,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 471. [2021-11-23 02:21:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 311 states have (on average 1.1961414790996785) internal successors, (372), 343 states have internal predecessors, (372), 78 states have call successors, (78), 62 states have call predecessors, (78), 81 states have return successors, (131), 84 states have call predecessors, (131), 78 states have call successors, (131) [2021-11-23 02:21:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 581 transitions. [2021-11-23 02:21:30,570 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 581 transitions. Word has length 80 [2021-11-23 02:21:30,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:30,572 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 581 transitions. [2021-11-23 02:21:30,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2021-11-23 02:21:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 581 transitions. [2021-11-23 02:21:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 02:21:30,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:30,575 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:30,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:21:30,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 02:21:30,803 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:30,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:30,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1726813961, now seen corresponding path program 1 times [2021-11-23 02:21:30,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:30,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583927302] [2021-11-23 02:21:30,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:30,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:30,891 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:21:30,891 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:30,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583927302] [2021-11-23 02:21:30,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583927302] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:21:30,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480868657] [2021-11-23 02:21:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:30,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:21:30,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:21:30,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:21:30,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:21:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:30,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 02:21:31,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:21:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 02:21:31,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:21:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:21:31,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480868657] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:21:31,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [843174128] [2021-11-23 02:21:31,295 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2021-11-23 02:21:31,295 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:21:31,296 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:21:31,296 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:21:31,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:21:37,229 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2021-11-23 02:21:37,238 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2021-11-23 02:21:37,892 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2021-11-23 02:21:37,894 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 63 for LOIs [2021-11-23 02:21:38,461 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 52 for LOIs [2021-11-23 02:21:38,815 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 30 for LOIs [2021-11-23 02:21:38,819 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 46 for LOIs [2021-11-23 02:21:38,822 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:21:47,884 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10459#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (<= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483648)))' at error location [2021-11-23 02:21:47,884 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:21:47,884 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:21:47,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2021-11-23 02:21:47,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830947025] [2021-11-23 02:21:47,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:21:47,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:21:47,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:21:47,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:21:47,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=2172, Unknown=0, NotChecked=0, Total=2450 [2021-11-23 02:21:47,888 INFO L87 Difference]: Start difference. First operand 471 states and 581 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:21:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:21:48,376 INFO L93 Difference]: Finished difference Result 941 states and 1189 transitions. [2021-11-23 02:21:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 02:21:48,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 84 [2021-11-23 02:21:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:21:48,384 INFO L225 Difference]: With dead ends: 941 [2021-11-23 02:21:48,384 INFO L226 Difference]: Without dead ends: 588 [2021-11-23 02:21:48,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 205 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=354, Invalid=3186, Unknown=0, NotChecked=0, Total=3540 [2021-11-23 02:21:48,391 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 144 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:21:48,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 525 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:21:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-11-23 02:21:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 548. [2021-11-23 02:21:48,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 361 states have (on average 1.1772853185595569) internal successors, (425), 400 states have internal predecessors, (425), 93 states have call successors, (93), 77 states have call predecessors, (93), 93 states have return successors, (147), 95 states have call predecessors, (147), 93 states have call successors, (147) [2021-11-23 02:21:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 665 transitions. [2021-11-23 02:21:48,441 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 665 transitions. Word has length 84 [2021-11-23 02:21:48,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:21:48,442 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 665 transitions. [2021-11-23 02:21:48,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-23 02:21:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 665 transitions. [2021-11-23 02:21:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 02:21:48,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:21:48,452 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:21:48,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:21:48,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:21:48,679 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:21:48,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:21:48,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2024548739, now seen corresponding path program 1 times [2021-11-23 02:21:48,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:21:48,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719715158] [2021-11-23 02:21:48,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:48,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:21:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-23 02:21:49,002 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:21:49,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719715158] [2021-11-23 02:21:49,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719715158] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:21:49,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587247936] [2021-11-23 02:21:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:21:49,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:21:49,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:21:49,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:21:49,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:21:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:21:49,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 02:21:49,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:21:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 68 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:21:49,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:21:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 56 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-23 02:21:50,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587247936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:21:50,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1825442989] [2021-11-23 02:21:50,245 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2021-11-23 02:21:50,245 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:21:50,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:21:50,246 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:21:50,246 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:21:55,189 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 55 for LOIs [2021-11-23 02:21:55,199 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 49 for LOIs [2021-11-23 02:21:55,921 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 41 for LOIs [2021-11-23 02:21:55,928 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 43 for LOIs [2021-11-23 02:21:55,984 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2021-11-23 02:21:56,085 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 58 for LOIs [2021-11-23 02:21:56,099 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:22:02,568 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13443#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (<= 0 |old(~pumpRunning~0)|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |#NULL.offset| 0) (<= |old(~pumpRunning~0)| 0) (<= 2 |old(~waterLevel~0)|) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 0 |#NULL.offset|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 1) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:22:02,569 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:22:02,569 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:22:02,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 30 [2021-11-23 02:22:02,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416918422] [2021-11-23 02:22:02,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:22:02,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-23 02:22:02,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:22:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-23 02:22:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=417, Invalid=3743, Unknown=0, NotChecked=0, Total=4160 [2021-11-23 02:22:02,573 INFO L87 Difference]: Start difference. First operand 548 states and 665 transitions. Second operand has 30 states, 28 states have (on average 5.535714285714286) internal successors, (155), 29 states have internal predecessors, (155), 18 states have call successors, (36), 8 states have call predecessors, (36), 12 states have return successors, (36), 17 states have call predecessors, (36), 17 states have call successors, (36) [2021-11-23 02:22:06,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:22:06,093 INFO L93 Difference]: Finished difference Result 1196 states and 1495 transitions. [2021-11-23 02:22:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-23 02:22:06,093 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.535714285714286) internal successors, (155), 29 states have internal predecessors, (155), 18 states have call successors, (36), 8 states have call predecessors, (36), 12 states have return successors, (36), 17 states have call predecessors, (36), 17 states have call successors, (36) Word has length 113 [2021-11-23 02:22:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:22:06,094 INFO L225 Difference]: With dead ends: 1196 [2021-11-23 02:22:06,094 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:22:06,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 309 SyntacticMatches, 14 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6328 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1740, Invalid=13022, Unknown=0, NotChecked=0, Total=14762 [2021-11-23 02:22:06,102 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 1638 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 1151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1151 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:22:06,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1645 Valid, 897 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1151 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:22:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:22:06,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:22:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:22:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:22:06,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2021-11-23 02:22:06,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:22:06,103 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:22:06,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.535714285714286) internal successors, (155), 29 states have internal predecessors, (155), 18 states have call successors, (36), 8 states have call predecessors, (36), 12 states have return successors, (36), 17 states have call predecessors, (36), 17 states have call successors, (36) [2021-11-23 02:22:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:22:06,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:22:06,105 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:22:06,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:22:06,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 02:22:06,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:22:12,016 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 466 473) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,016 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 466 473) no Hoare annotation was computed. [2021-11-23 02:22:12,017 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 356 362) no Hoare annotation was computed. [2021-11-23 02:22:12,017 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 356 362) the Hoare annotation is: true [2021-11-23 02:22:12,017 INFO L854 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0) .cse2) (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2))) [2021-11-23 02:22:12,017 INFO L858 garLoopResultBuilder]: For program point L409-1(lines 390 414) no Hoare annotation was computed. [2021-11-23 02:22:12,017 INFO L854 garLoopResultBuilder]: At program point L404(line 404) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2021-11-23 02:22:12,018 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 390 414) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,018 INFO L854 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2021-11-23 02:22:12,018 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2021-11-23 02:22:12,018 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 390 414) no Hoare annotation was computed. [2021-11-23 02:22:12,018 INFO L854 garLoopResultBuilder]: At program point L394(lines 394 411) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,019 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 485 493) no Hoare annotation was computed. [2021-11-23 02:22:12,019 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 485 493) the Hoare annotation is: true [2021-11-23 02:22:12,019 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 610 621) the Hoare annotation is: true [2021-11-23 02:22:12,019 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 610 621) no Hoare annotation was computed. [2021-11-23 02:22:12,019 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 222 251) no Hoare annotation was computed. [2021-11-23 02:22:12,019 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 222 251) the Hoare annotation is: true [2021-11-23 02:22:12,020 INFO L861 garLoopResultBuilder]: At program point L247(lines 222 251) the Hoare annotation is: true [2021-11-23 02:22:12,020 INFO L858 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2021-11-23 02:22:12,020 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 240) no Hoare annotation was computed. [2021-11-23 02:22:12,020 INFO L861 garLoopResultBuilder]: At program point L236-1(lines 236 240) the Hoare annotation is: true [2021-11-23 02:22:12,020 INFO L861 garLoopResultBuilder]: At program point L232-2(lines 232 246) the Hoare annotation is: true [2021-11-23 02:22:12,020 INFO L861 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: true [2021-11-23 02:22:12,021 INFO L858 garLoopResultBuilder]: For program point L228-1(line 228) no Hoare annotation was computed. [2021-11-23 02:22:12,021 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-11-23 02:22:12,021 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 432) no Hoare annotation was computed. [2021-11-23 02:22:12,021 INFO L858 garLoopResultBuilder]: For program point L420(lines 420 437) no Hoare annotation was computed. [2021-11-23 02:22:12,021 INFO L854 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0))) (let ((.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse12 (<= |old(~waterLevel~0)| 0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse11 (not (= ~switchedOnBeforeTS~0 0))) (.cse6 (not .cse1)) (.cse13 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse14 (not (<= |old(~waterLevel~0)| 2))) (.cse15 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse7 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2) (let ((.cse8 (and .cse13 (< 0 |old(~waterLevel~0)|)))) (or .cse3 .cse4 .cse5 (and .cse6 .cse7 (<= ~waterLevel~0 0) (or .cse8 .cse9) .cse10) (and .cse11 .cse1 .cse7 (or .cse8 (and .cse12 .cse9))) (= |old(~switchedOnBeforeTS~0)| 0))) (or .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse5 (not .cse12)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse2) (or .cse0 .cse14 .cse2 .cse15) (let ((.cse16 (or .cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)))) (or (and .cse11 .cse1 .cse7 .cse13 .cse16) .cse5 (and .cse6 .cse7 .cse13 .cse10 .cse16) .cse14 .cse15)) (or .cse4 .cse0 .cse5 (and .cse1 .cse7 .cse9 .cse10))))) [2021-11-23 02:22:12,022 INFO L858 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2021-11-23 02:22:12,022 INFO L854 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-11-23 02:22:12,022 INFO L854 garLoopResultBuilder]: At program point L343-1(lines 343 349) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (not .cse2)) (.cse10 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse11 (<= |old(~waterLevel~0)| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (not (= 0 ~systemActive~0))) (.cse13 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse3) .cse5) (let ((.cse8 (or (and .cse10 (< 0 |old(~waterLevel~0)|)) (and .cse11 .cse3)))) (or .cse6 .cse1 (and .cse7 .cse8 .cse4) (and .cse9 .cse2 .cse8) .cse5 (= |old(~switchedOnBeforeTS~0)| 0))) (or .cse0 .cse2 .cse12) (or (and .cse9 .cse2 .cse10) .cse1 (and .cse7 .cse10 .cse4) .cse3 .cse5 .cse13) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 (not .cse11)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse12) (or .cse0 .cse3 .cse5 .cse12 .cse13)))) [2021-11-23 02:22:12,022 INFO L854 garLoopResultBuilder]: At program point L430(line 430) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse3 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (<= ~waterLevel~0 0) (or (and .cse3 (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse1 (and .cse2 .cse3 .cse4) .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse1 .cse5) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= |old(~waterLevel~0)| 0))) (or .cse6 (not (= 0 ~systemActive~0))))) [2021-11-23 02:22:12,023 INFO L854 garLoopResultBuilder]: At program point L426(line 426) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse3 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (<= ~waterLevel~0 0) (or (and .cse3 (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse1 (and .cse2 .cse3 .cse4) .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse1 .cse5) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= |old(~waterLevel~0)| 0))) (or .cse6 (not (= 0 ~systemActive~0))))) [2021-11-23 02:22:12,023 INFO L854 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse3 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (<= ~waterLevel~0 0) (or (and .cse3 (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)) (or .cse1 (and .cse2 .cse3 .cse4) .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse1 .cse5) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= |old(~waterLevel~0)| 0))) (or .cse6 (not (= 0 ~systemActive~0))))) [2021-11-23 02:22:12,023 INFO L858 garLoopResultBuilder]: For program point L422-1(line 422) no Hoare annotation was computed. [2021-11-23 02:22:12,023 INFO L854 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (and .cse4 (or .cse1 (= ~waterLevel~0 1)))) (or .cse5 (and .cse6 .cse1) .cse7 .cse3) (or .cse0 .cse5 .cse7 (and (not (= ~switchedOnBeforeTS~0 0)) .cse4 .cse1) (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse5 (and .cse6 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse7))) [2021-11-23 02:22:12,024 INFO L854 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse9 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (= 0 ~systemActive~0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or (and .cse6 .cse2 .cse3) .cse4 .cse5 .cse7) (or .cse0 .cse8 (and .cse1 (or .cse2 (= ~waterLevel~0 1)))) (or .cse9 .cse4 .cse5 .cse10 .cse7) (or .cse9 .cse4 (and .cse6 .cse2 .cse10 .cse3) .cse5 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 .cse2 .cse5 .cse8 .cse7))) [2021-11-23 02:22:12,024 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2021-11-23 02:22:12,024 INFO L854 garLoopResultBuilder]: At program point L435(line 435) the Hoare annotation is: (let ((.cse2 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse3 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-11-23 02:22:12,024 INFO L854 garLoopResultBuilder]: At program point L435-1(lines 416 440) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0))) (let ((.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (not .cse2)) (.cse10 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse11 (<= |old(~waterLevel~0)| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse3) .cse5) (let ((.cse8 (or (and .cse10 (< 0 |old(~waterLevel~0)|)) (and .cse11 .cse3)))) (or .cse6 .cse1 (and .cse7 .cse8 .cse4) (and .cse9 .cse2 .cse8) .cse5 (= |old(~switchedOnBeforeTS~0)| 0))) (or (and .cse9 .cse2 .cse10) .cse1 (and .cse7 .cse10 .cse4) .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 (not .cse11)) (or .cse0 (not (= 0 ~systemActive~0)))))) [2021-11-23 02:22:12,024 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2021-11-23 02:22:12,025 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 329 355) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 (and .cse4 (or .cse1 (= ~waterLevel~0 1)))) (or .cse5 (and .cse6 .cse1) .cse7 .cse3) (or .cse0 .cse5 .cse7 (and (not (= ~switchedOnBeforeTS~0 0)) .cse4 .cse1) (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse5 (and .cse6 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse7))) [2021-11-23 02:22:12,025 INFO L854 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse15 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse14 (not (= ~switchedOnBeforeTS~0 0))) (.cse9 (not .cse1)) (.cse6 (= ~waterLevel~0 1)) (.cse18 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse17 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse13 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse7 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (not .cse15)) (.cse16 (<= |old(~waterLevel~0)| 0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 (<= 2 ~waterLevel~0) .cse4 .cse5) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse6 .cse2) (let ((.cse11 (and .cse18 (< 0 |old(~waterLevel~0)|)))) (or .cse7 .cse8 .cse3 (and .cse9 .cse10 (<= ~waterLevel~0 0) (or .cse11 .cse12) .cse13) (and .cse14 .cse1 .cse10 .cse15 (or .cse11 (and .cse16 .cse12))) .cse17)) (or .cse0 (and (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2) .cse12) .cse4 .cse2 .cse5) (let ((.cse19 (or .cse12 .cse6))) (or .cse3 (and .cse14 .cse1 .cse10 .cse15 .cse19) (and .cse10 .cse12) .cse4 .cse5 (and .cse9 .cse10 .cse19 .cse13))) (or .cse7 .cse18 .cse3 .cse4 .cse5 .cse17) (or .cse8 .cse0 (and .cse1 .cse10 .cse15 .cse12 .cse13) .cse3) (or .cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (and .cse1 .cse15) (not .cse16))))) [2021-11-23 02:22:12,025 INFO L858 garLoopResultBuilder]: For program point L336-2(lines 332 354) no Hoare annotation was computed. [2021-11-23 02:22:12,025 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 329 355) no Hoare annotation was computed. [2021-11-23 02:22:12,026 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2021-11-23 02:22:12,026 INFO L858 garLoopResultBuilder]: For program point L572(lines 572 578) no Hoare annotation was computed. [2021-11-23 02:22:12,026 INFO L854 garLoopResultBuilder]: At program point L572-1(lines 572 578) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 02:22:12,026 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 190) no Hoare annotation was computed. [2021-11-23 02:22:12,026 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 184 190) no Hoare annotation was computed. [2021-11-23 02:22:12,026 INFO L854 garLoopResultBuilder]: At program point L209(lines 164 211) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2021-11-23 02:22:12,027 INFO L854 garLoopResultBuilder]: At program point L176(line 176) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2021-11-23 02:22:12,027 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:22:12,027 INFO L854 garLoopResultBuilder]: At program point L305(lines 305 312) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2021-11-23 02:22:12,027 INFO L861 garLoopResultBuilder]: At program point L305-2(lines 305 312) the Hoare annotation is: true [2021-11-23 02:22:12,027 INFO L858 garLoopResultBuilder]: For program point L165(lines 164 211) no Hoare annotation was computed. [2021-11-23 02:22:12,028 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 207) no Hoare annotation was computed. [2021-11-23 02:22:12,028 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:22:12,028 INFO L854 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2021-11-23 02:22:12,028 INFO L854 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2))) [2021-11-23 02:22:12,028 INFO L861 garLoopResultBuilder]: At program point L215(lines 154 219) the Hoare annotation is: true [2021-11-23 02:22:12,028 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2021-11-23 02:22:12,029 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 174 180) no Hoare annotation was computed. [2021-11-23 02:22:12,029 INFO L854 garLoopResultBuilder]: At program point L212(lines 163 213) the Hoare annotation is: false [2021-11-23 02:22:12,029 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 206) no Hoare annotation was computed. [2021-11-23 02:22:12,029 INFO L854 garLoopResultBuilder]: At program point L200-2(lines 194 207) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2))) [2021-11-23 02:22:12,029 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 364 388) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,029 INFO L854 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0) .cse2) (or (and (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0 .cse1 .cse2))) [2021-11-23 02:22:12,030 INFO L858 garLoopResultBuilder]: For program point L372(lines 372 380) no Hoare annotation was computed. [2021-11-23 02:22:12,030 INFO L854 garLoopResultBuilder]: At program point L368(lines 368 385) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,030 INFO L854 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2021-11-23 02:22:12,030 INFO L858 garLoopResultBuilder]: For program point L383-1(lines 364 388) no Hoare annotation was computed. [2021-11-23 02:22:12,030 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 364 388) no Hoare annotation was computed. [2021-11-23 02:22:12,030 INFO L854 garLoopResultBuilder]: At program point L454(line 454) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,031 INFO L854 garLoopResultBuilder]: At program point L454-1(line 454) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2021-11-23 02:22:12,031 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 598 609) no Hoare annotation was computed. [2021-11-23 02:22:12,031 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 598 609) the Hoare annotation is: (let ((.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (= ~pumpRunning~0 0))) (let ((.cse6 (not .cse7)) (.cse3 (and (or .cse5 .cse7 .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= |old(~waterLevel~0)| 2)) .cse4))) (.cse1 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~waterLevel~0)| 0))) (or .cse3 .cse2 .cse4) (or .cse5 .cse6 .cse0 .cse2) (or .cse6 .cse2 (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) (or .cse3 .cse1 .cse2)))) [2021-11-23 02:22:12,031 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 474 484) the Hoare annotation is: true [2021-11-23 02:22:12,031 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 474 484) no Hoare annotation was computed. [2021-11-23 02:22:12,035 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:22:12,037 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:22:12,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:22:12 BoogieIcfgContainer [2021-11-23 02:22:12,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:22:12,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:22:12,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:22:12,070 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:22:12,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:10" (3/4) ... [2021-11-23 02:22:12,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:22:12,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 02:22:12,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:22:12,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:22:12,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:22:12,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:22:12,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:22:12,081 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:22:12,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-23 02:22:12,091 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:22:12,091 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-23 02:22:12,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2021-11-23 02:22:12,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-11-23 02:22:12,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 02:22:12,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:22:12,111 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:22:12,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:22:12,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:22:12,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && (((((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && aux-isPumpRunning()-aux == pumpRunning)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2021-11-23 02:22:12,141 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || ((!(pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && pumpRunning == switchedOnBeforeTS)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) || !(1 == systemActive)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && pumpRunning == switchedOnBeforeTS)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2021-11-23 02:22:12,143 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || ((((!(pumpRunning == 0) && tmp == waterLevel) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(pumpRunning) == 0) || ((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || (tmp == waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || (((!(pumpRunning == 0) && tmp == waterLevel) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(waterLevel) == waterLevel + 1) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && tmp == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || !(1 == systemActive)) || (pumpRunning == 0 && 1 == systemActive)) || !(\old(waterLevel) <= 0)) [2021-11-23 02:22:12,143 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-23 02:22:12,143 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || ((!(pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && pumpRunning == switchedOnBeforeTS)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) || !(1 == systemActive)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && pumpRunning == switchedOnBeforeTS)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-23 02:22:12,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2021-11-23 02:22:12,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2021-11-23 02:22:12,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) [2021-11-23 02:22:12,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:22:12,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:22:12,204 INFO L158 Benchmark]: Toolchain (without parser) took 63436.51ms. Allocated memory was 113.2MB in the beginning and 453.0MB in the end (delta: 339.7MB). Free memory was 69.1MB in the beginning and 377.4MB in the end (delta: -308.4MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,204 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:22:12,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 598.02ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 78.0MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.61ms. Allocated memory is still 113.2MB. Free memory was 78.0MB in the beginning and 75.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,205 INFO L158 Benchmark]: Boogie Preprocessor took 48.40ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 73.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,206 INFO L158 Benchmark]: RCFGBuilder took 705.69ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 49.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,207 INFO L158 Benchmark]: TraceAbstraction took 61830.81ms. Allocated memory was 113.2MB in the beginning and 453.0MB in the end (delta: 339.7MB). Free memory was 49.5MB in the beginning and 385.8MB in the end (delta: -336.3MB). Peak memory consumption was 249.6MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,207 INFO L158 Benchmark]: Witness Printer took 133.26ms. Allocated memory is still 453.0MB. Free memory was 384.8MB in the beginning and 377.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:22:12,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 598.02ms. Allocated memory is still 113.2MB. Free memory was 68.9MB in the beginning and 78.0MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.61ms. Allocated memory is still 113.2MB. Free memory was 78.0MB in the beginning and 75.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.40ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 73.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 705.69ms. Allocated memory is still 113.2MB. Free memory was 73.5MB in the beginning and 49.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 61830.81ms. Allocated memory was 113.2MB in the beginning and 453.0MB in the end (delta: 339.7MB). Free memory was 49.5MB in the beginning and 385.8MB in the end (delta: -336.3MB). Peak memory consumption was 249.6MB. Max. memory is 16.1GB. * Witness Printer took 133.26ms. Allocated memory is still 453.0MB. Free memory was 384.8MB in the beginning and 377.4MB in the end (delta: 7.3MB). 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 - PositiveResult [Line: 144]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.7s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3051 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3019 mSDsluCounter, 3385 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2737 mSDsCounter, 1808 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4239 IncrementalHoareTripleChecker+Invalid, 6047 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1808 mSolverCounterUnsat, 1025 mSDtfsCounter, 4239 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1048 GetRequests, 734 SyntacticMatches, 40 SemanticMatches, 274 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9817 ImplicationChecksByTransitivity, 24.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=594occurred in iteration=6, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 182 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 1901 PreInvPairs, 2184 NumberOfFragments, 2340 HoareAnnotationTreeSize, 1901 FomulaSimplifications, 6912 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 45 FomulaSimplificationsInter, 28826 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 803 NumberOfCodeBlocks, 803 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1064 ConstructedInterpolants, 0 QuantifiedInterpolants, 3392 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1599 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 427/515 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || ((!(pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && pumpRunning == switchedOnBeforeTS)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) || !(1 == systemActive)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && pumpRunning == switchedOnBeforeTS)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || ((((!(pumpRunning == 0) && tmp == waterLevel) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(pumpRunning) == 0) || ((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || (tmp == waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || (((!(pumpRunning == 0) && tmp == waterLevel) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(waterLevel) == waterLevel + 1) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && tmp == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || !(1 == systemActive)) || (pumpRunning == 0 && 1 == systemActive)) || !(\old(waterLevel) <= 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) || (((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && (((((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && aux-isPumpRunning()-aux == pumpRunning)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || ((!(pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && pumpRunning == switchedOnBeforeTS)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel)))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) || !(1 == systemActive)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && pumpRunning == switchedOnBeforeTS)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:22:12,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f44c581-b63d-40ee-82df-ed1744cec29e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE