./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI --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 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:11:57,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:11:57,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:11:57,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:11:57,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:11:57,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:11:57,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:11:57,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:11:57,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:11:57,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:11:57,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:11:57,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:11:57,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:11:57,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:11:57,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:11:57,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:11:57,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:11:57,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:11:57,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:11:57,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:11:57,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:11:57,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:11:57,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:11:57,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:11:57,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:11:57,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:11:57,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:11:57,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:11:57,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:11:57,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:11:57,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:11:57,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:11:57,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:11:57,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:11:57,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:11:57,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:11:57,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:11:57,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:11:57,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:11:57,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:11:57,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:11:57,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:11:57,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:11:57,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:11:57,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:11:57,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:11:57,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:11:57,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:11:57,515 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:11:57,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:11:57,515 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:11:57,515 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:11:57,517 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:11:57,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:11:57,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:11:57,518 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:11:57,518 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:11:57,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:11:57,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:11:57,519 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:11:57,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:11:57,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:11:57,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:11:57,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:11:57,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:11:57,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:11:57,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:11:57,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:11:57,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:11:57,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:11:57,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:11:57,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:11:57,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:11:57,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:11:57,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:57,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:11:57,524 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:11:57,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:11:57,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:11:57,525 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:11:57,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:11:57,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:11:57,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:11:57,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e [2022-11-03 02:11:57,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:11:57,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:11:57,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:11:57,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:11:57,951 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:11:57,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2022-11-03 02:11:58,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/data/aa8371fd4/e2d7edb8761c4a37bfda3465286e4499/FLAG7839c51e6 [2022-11-03 02:11:58,630 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:11:58,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2022-11-03 02:11:58,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/data/aa8371fd4/e2d7edb8761c4a37bfda3465286e4499/FLAG7839c51e6 [2022-11-03 02:11:58,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/data/aa8371fd4/e2d7edb8761c4a37bfda3465286e4499 [2022-11-03 02:11:58,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:11:58,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:11:58,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:58,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:11:58,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:11:58,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:58" (1/1) ... [2022-11-03 02:11:58,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa1d2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:58, skipping insertion in model container [2022-11-03 02:11:58,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:58" (1/1) ... [2022-11-03 02:11:58,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:11:59,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:11:59,443 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_e68635d0-0a17-4711-8b48-dd01305bdd32/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2022-11-03 02:11:59,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:59,467 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:11:59,621 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_e68635d0-0a17-4711-8b48-dd01305bdd32/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2022-11-03 02:11:59,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:59,645 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:11:59,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59 WrapperNode [2022-11-03 02:11:59,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:59,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:59,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:11:59,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:11:59,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,713 INFO L138 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 253 [2022-11-03 02:11:59,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:59,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:11:59,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:11:59,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:11:59,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:11:59,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:11:59,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:11:59,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:11:59,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:59,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:59,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:11:59,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:11:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:11:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:11:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:11:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:11:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:11:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:11:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:11:59,832 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 02:11:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 02:11:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:11:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:11:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:11:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:11:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 02:11:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 02:11:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:11:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:11:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:11:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:11:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:11:59,951 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:11:59,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:12:00,388 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:12:00,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:12:00,575 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:12:00,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:12:00 BoogieIcfgContainer [2022-11-03 02:12:00,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:12:00,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:12:00,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:12:00,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:12:00,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:11:58" (1/3) ... [2022-11-03 02:12:00,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bcf58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:12:00, skipping insertion in model container [2022-11-03 02:12:00,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (2/3) ... [2022-11-03 02:12:00,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bcf58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:12:00, skipping insertion in model container [2022-11-03 02:12:00,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:12:00" (3/3) ... [2022-11-03 02:12:00,592 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2022-11-03 02:12:00,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:12:00,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:12:00,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:12:00,704 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b8dbe3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:12:00,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:12:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 02:12:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:12:00,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:00,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:00,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:00,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1316280313, now seen corresponding path program 1 times [2022-11-03 02:12:00,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:00,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365060375] [2022-11-03 02:12:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:00,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:00,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365060375] [2022-11-03 02:12:00,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365060375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:00,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:00,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:12:00,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805417260] [2022-11-03 02:12:00,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:00,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:12:00,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:01,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:12:01,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:12:01,007 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:01,079 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-03 02:12:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:12:01,081 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 02:12:01,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:01,091 INFO L225 Difference]: With dead ends: 126 [2022-11-03 02:12:01,092 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 02:12:01,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:12:01,099 INFO L413 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:01,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:12:01,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 02:12:01,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-03 02:12:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 02:12:01,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-03 02:12:01,151 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-11-03 02:12:01,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:01,152 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-03 02:12:01,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-03 02:12:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:12:01,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:01,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:01,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:12:01,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:01,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:01,157 INFO L85 PathProgramCache]: Analyzing trace with hash 333894127, now seen corresponding path program 1 times [2022-11-03 02:12:01,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:01,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58156413] [2022-11-03 02:12:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:01,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:01,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:01,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58156413] [2022-11-03 02:12:01,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58156413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:01,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:01,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:12:01,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806603030] [2022-11-03 02:12:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:01,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:12:01,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:01,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:12:01,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:01,395 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:01,511 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-11-03 02:12:01,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:12:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 02:12:01,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:01,514 INFO L225 Difference]: With dead ends: 95 [2022-11-03 02:12:01,516 INFO L226 Difference]: Without dead ends: 51 [2022-11-03 02:12:01,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:01,520 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 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 [2022-11-03 02:12:01,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:12:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-03 02:12:01,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-03 02:12:01,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 02:12:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-11-03 02:12:01,538 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-11-03 02:12:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:01,540 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-11-03 02:12:01,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-11-03 02:12:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:12:01,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:01,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:01,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:12:01,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:01,556 INFO L85 PathProgramCache]: Analyzing trace with hash 684818900, now seen corresponding path program 1 times [2022-11-03 02:12:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:01,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772260069] [2022-11-03 02:12:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:01,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:02,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:02,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772260069] [2022-11-03 02:12:02,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772260069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:02,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:02,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:12:02,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434046380] [2022-11-03 02:12:02,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:02,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:12:02,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:02,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:12:02,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:12:02,004 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:02,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:02,224 INFO L93 Difference]: Finished difference Result 184 states and 239 transitions. [2022-11-03 02:12:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:12:02,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-03 02:12:02,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:02,227 INFO L225 Difference]: With dead ends: 184 [2022-11-03 02:12:02,227 INFO L226 Difference]: Without dead ends: 135 [2022-11-03 02:12:02,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:12:02,229 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 112 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:02,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 222 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:12:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-03 02:12:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 127. [2022-11-03 02:12:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 93 states have internal predecessors, (104), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (29), 23 states have call predecessors, (29), 25 states have call successors, (29) [2022-11-03 02:12:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2022-11-03 02:12:02,273 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 20 [2022-11-03 02:12:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:02,274 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2022-11-03 02:12:02,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2022-11-03 02:12:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:12:02,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:02,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:02,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:12:02,276 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1779037157, now seen corresponding path program 1 times [2022-11-03 02:12:02,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:02,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970811552] [2022-11-03 02:12:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:02,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:02,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970811552] [2022-11-03 02:12:02,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970811552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:02,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:02,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:12:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960751367] [2022-11-03 02:12:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:02,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:12:02,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:02,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:12:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:02,416 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-03 02:12:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:02,461 INFO L93 Difference]: Finished difference Result 252 states and 317 transitions. [2022-11-03 02:12:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:12:02,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 23 [2022-11-03 02:12:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:02,468 INFO L225 Difference]: With dead ends: 252 [2022-11-03 02:12:02,469 INFO L226 Difference]: Without dead ends: 127 [2022-11-03 02:12:02,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:02,481 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:02,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:12:02,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-03 02:12:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-11-03 02:12:02,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 93 states have internal predecessors, (101), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (29), 23 states have call predecessors, (29), 25 states have call successors, (29) [2022-11-03 02:12:02,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 155 transitions. [2022-11-03 02:12:02,508 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 155 transitions. Word has length 23 [2022-11-03 02:12:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:02,508 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 155 transitions. [2022-11-03 02:12:02,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-03 02:12:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 155 transitions. [2022-11-03 02:12:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:12:02,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:02,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:02,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:12:02,511 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:02,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1616450709, now seen corresponding path program 1 times [2022-11-03 02:12:02,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:02,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021814715] [2022-11-03 02:12:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:02,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:02,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:02,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021814715] [2022-11-03 02:12:02,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021814715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:02,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:02,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:12:02,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116597094] [2022-11-03 02:12:02,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:02,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:12:02,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:02,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:12:02,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:12:02,601 INFO L87 Difference]: Start difference. First operand 127 states and 155 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:12:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:02,911 INFO L93 Difference]: Finished difference Result 337 states and 413 transitions. [2022-11-03 02:12:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:12:02,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2022-11-03 02:12:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:02,922 INFO L225 Difference]: With dead ends: 337 [2022-11-03 02:12:02,922 INFO L226 Difference]: Without dead ends: 212 [2022-11-03 02:12:02,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:12:02,926 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 116 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:02,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 157 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:12:02,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-03 02:12:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2022-11-03 02:12:02,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 137 states have (on average 1.218978102189781) internal successors, (167), 148 states have internal predecessors, (167), 34 states have call successors, (34), 28 states have call predecessors, (34), 34 states have return successors, (44), 36 states have call predecessors, (44), 34 states have call successors, (44) [2022-11-03 02:12:02,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 245 transitions. [2022-11-03 02:12:02,985 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 245 transitions. Word has length 33 [2022-11-03 02:12:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:02,985 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 245 transitions. [2022-11-03 02:12:02,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:12:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 245 transitions. [2022-11-03 02:12:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 02:12:02,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:02,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:02,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:12:02,994 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:02,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:02,994 INFO L85 PathProgramCache]: Analyzing trace with hash -873077439, now seen corresponding path program 1 times [2022-11-03 02:12:02,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:02,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835961327] [2022-11-03 02:12:02,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:02,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:03,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:03,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835961327] [2022-11-03 02:12:03,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835961327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:03,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:03,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:12:03,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38133156] [2022-11-03 02:12:03,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:03,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:12:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:03,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:12:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:12:03,381 INFO L87 Difference]: Start difference. First operand 206 states and 245 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:12:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:03,672 INFO L93 Difference]: Finished difference Result 418 states and 513 transitions. [2022-11-03 02:12:03,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:12:03,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2022-11-03 02:12:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:03,675 INFO L225 Difference]: With dead ends: 418 [2022-11-03 02:12:03,676 INFO L226 Difference]: Without dead ends: 310 [2022-11-03 02:12:03,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:12:03,678 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 135 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:03,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 313 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:12:03,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-03 02:12:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 288. [2022-11-03 02:12:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 192 states have (on average 1.1979166666666667) internal successors, (230), 206 states have internal predecessors, (230), 48 states have call successors, (48), 40 states have call predecessors, (48), 47 states have return successors, (63), 50 states have call predecessors, (63), 48 states have call successors, (63) [2022-11-03 02:12:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 341 transitions. [2022-11-03 02:12:03,744 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 341 transitions. Word has length 34 [2022-11-03 02:12:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:03,746 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 341 transitions. [2022-11-03 02:12:03,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:12:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 341 transitions. [2022-11-03 02:12:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 02:12:03,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:03,751 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:12:03,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:12:03,752 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:03,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:03,752 INFO L85 PathProgramCache]: Analyzing trace with hash 890965338, now seen corresponding path program 1 times [2022-11-03 02:12:03,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:03,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087917739] [2022-11-03 02:12:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:03,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:04,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:12:04,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:04,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087917739] [2022-11-03 02:12:04,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087917739] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:12:04,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441777960] [2022-11-03 02:12:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:04,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:12:04,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:04,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:12:04,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:12:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:04,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:12:04,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:12:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:04,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:12:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:12:05,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441777960] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:12:05,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2090533573] [2022-11-03 02:12:05,225 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2022-11-03 02:12:05,225 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:12:05,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:12:05,236 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:12:05,237 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:12:07,667 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 02:12:07,756 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 295 for LOIs [2022-11-03 02:12:13,556 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 292 for LOIs [2022-11-03 02:12:14,531 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 293 for LOIs [2022-11-03 02:12:14,975 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 45 for LOIs [2022-11-03 02:12:14,982 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:13:07,370 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3910#(and (= (select |#length| 15) 25) (= (select (select |#memory_int| 19) 0) 79) (= (select (select |#memory_int| 17) 6) 0) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= 2 (select |#length| 20)) (= (select |#valid| 15) 1) (= (select (select |#memory_int| 22) 0) 79) (= 5 (select |#length| 18)) (= (select |#valid| 26) 1) (= (select (select |#memory_int| 27) 2) 0) (= (select (select |#memory_int| 26) 3) 0) (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (= (select |#valid| 9) 1) (= 13 (select |#length| 16)) (= (select |#length| 12) 25) (= (select (select |#memory_int| 18) 2) 73) (= (select |#length| 28) 2) (= (select |#valid| 11) 1) (= (select |#valid| 27) 1) (= 30 (select |#length| 4)) (= (select |#length| 22) 3) (= 4 (select |#length| 26)) (= 102 (select (select |#memory_int| 23) 1)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= (select |#length| 21) 13) (= (select |#length| 27) 3) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~10#1|) (= 84 (select (select |#memory_int| 18) 3)) (= 41 (select (select |#memory_int| 27) 0)) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= (select |#valid| 3) 1) (= (select |#length| 19) 3) (= (select |#valid| 7) 1) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= (select |#valid| 18) 1) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= (select |#valid| 22) 1) (= 30 (select |#length| 13)) (= 117 (select (select |#memory_int| 24) 2)) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= (select |#valid| 24) 1) (= 30 (select |#length| 10)) (= (select (select |#memory_int| 19) 2) 0) (= 3 (select |#length| 25)) (= (select |#valid| 12) 1) (= 82 (select (select |#memory_int| 18) 1)) (= (select (select |#memory_int| 25) 1) 110) (= (select |#valid| 28) 1) (= (select (select |#memory_int| 25) 2) 0) (= 102 (select (select |#memory_int| 23) 2)) (= (select (select |#memory_int| 28) 1) 0) (= (select |#valid| 4) 1) (<= 0 ~head~0.base) (= (select (select |#memory_int| 22) 2) 0) (= (select |#valid| 1) 1) (= (select |#valid| 20) 1) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (= (select |#length| 6) 21) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= (select |#valid| 21) 1) (= 7 (select |#length| 24)) (= 58 (select (select |#memory_int| 24) 5)) (= (select (select |#memory_int| 24) 1) 80) (= (select (select |#memory_int| 26) 2) 102) (= (select (select |#memory_int| 24) 6) 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~10#1|) (= (select (select |#memory_int| 18) 4) 0) (= (select |#valid| 14) 1) (= 109 (select (select |#memory_int| 24) 3)) (= |old(~waterLevel~0)| ~waterLevel~0) (= 77 (select (select |#memory_int| 17) 1)) (= 110 (select (select |#memory_int| 22) 1)) (= 9 (select |#length| 14)) (= (select (select |#memory_int| 17) 4) 104) (= (select |#valid| 0) 0) (= 79 (select (select |#memory_int| 26) 0)) (= (select (select |#memory_int| 28) 0) 10) (= (select |#valid| 25) 1) (<= ~head~0.base 0) (= 112 (select (select |#memory_int| 24) 4)) (= (select (select |#memory_int| 23) 3) 0) (= 116 (select (select |#memory_int| 17) 3)) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 20) 0) 41) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= 44 (select (select |#memory_int| 24) 0)) (= (select (select |#memory_int| 26) 1) 102) (= (select (select |#memory_int| 1) 0) 48) (= 67 (select (select |#memory_int| 18) 0)) (= (select |#valid| 23) 1) (= 4 (select |#length| 23)) (= (select (select |#memory_int| 23) 0) 79) (= (select (select |#memory_int| 27) 1) 32) (= 101 (select (select |#memory_int| 17) 2)) (= (select |#valid| 19) 1) (= (select (select |#memory_int| 19) 1) 75) (= (select (select |#memory_int| 20) 1) 0) (= 44 (select (select |#memory_int| 17) 0)) (= (select |#valid| 16) 1) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= (select |#valid| 6) 1) (= (select (select |#memory_int| 1) 1) 0) (= (select |#length| 17) 7) (= (select |#valid| 17) 1) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select (select |#memory_int| 17) 5) 58) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= (select (select |#memory_int| 25) 0) 79))' at error location [2022-11-03 02:13:07,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:13:07,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:13:07,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 12] total 25 [2022-11-03 02:13:07,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66935048] [2022-11-03 02:13:07,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:13:07,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:13:07,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:13:07,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=2355, Unknown=0, NotChecked=0, Total=2652 [2022-11-03 02:13:07,374 INFO L87 Difference]: Start difference. First operand 288 states and 341 transitions. Second operand has 25 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 4 states have call successors, (12), 3 states have call predecessors, (12), 12 states have return successors, (14), 9 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-03 02:13:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:11,559 INFO L93 Difference]: Finished difference Result 1610 states and 1976 transitions. [2022-11-03 02:13:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-03 02:13:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 4 states have call successors, (12), 3 states have call predecessors, (12), 12 states have return successors, (14), 9 states have call predecessors, (14), 4 states have call successors, (14) Word has length 39 [2022-11-03 02:13:11,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:11,569 INFO L225 Difference]: With dead ends: 1610 [2022-11-03 02:13:11,569 INFO L226 Difference]: Without dead ends: 1324 [2022-11-03 02:13:11,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 76 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4424 ImplicationChecksByTransitivity, 54.9s TimeCoverageRelationStatistics Valid=1064, Invalid=10926, Unknown=0, NotChecked=0, Total=11990 [2022-11-03 02:13:11,577 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 600 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:11,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1323 Invalid, 2244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:13:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-11-03 02:13:11,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1214. [2022-11-03 02:13:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 820 states have (on average 1.1878048780487804) internal successors, (974), 858 states have internal predecessors, (974), 204 states have call successors, (204), 171 states have call predecessors, (204), 189 states have return successors, (276), 206 states have call predecessors, (276), 204 states have call successors, (276) [2022-11-03 02:13:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1454 transitions. [2022-11-03 02:13:11,719 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1454 transitions. Word has length 39 [2022-11-03 02:13:11,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:11,721 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 1454 transitions. [2022-11-03 02:13:11,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 4 states have call successors, (12), 3 states have call predecessors, (12), 12 states have return successors, (14), 9 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-03 02:13:11,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1454 transitions. [2022-11-03 02:13:11,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 02:13:11,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:11,724 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:13:11,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:13:11,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:13:11,938 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:11,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:11,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1364350968, now seen corresponding path program 1 times [2022-11-03 02:13:11,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:11,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684995979] [2022-11-03 02:13:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:11,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:12,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:13:12,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:12,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684995979] [2022-11-03 02:13:12,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684995979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:12,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:13:12,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 02:13:12,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026997332] [2022-11-03 02:13:12,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:12,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:13:12,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:12,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:13:12,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:13:12,127 INFO L87 Difference]: Start difference. First operand 1214 states and 1454 transitions. Second operand has 9 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 02:13:12,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:12,755 INFO L93 Difference]: Finished difference Result 2954 states and 3639 transitions. [2022-11-03 02:13:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:13:12,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2022-11-03 02:13:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:12,767 INFO L225 Difference]: With dead ends: 2954 [2022-11-03 02:13:12,767 INFO L226 Difference]: Without dead ends: 2065 [2022-11-03 02:13:12,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:13:12,772 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 124 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:12,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 149 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:13:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2022-11-03 02:13:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2065. [2022-11-03 02:13:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 1383 states have (on average 1.1670281995661604) internal successors, (1614), 1446 states have internal predecessors, (1614), 355 states have call successors, (355), 299 states have call predecessors, (355), 326 states have return successors, (488), 356 states have call predecessors, (488), 355 states have call successors, (488) [2022-11-03 02:13:13,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2457 transitions. [2022-11-03 02:13:13,012 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2457 transitions. Word has length 42 [2022-11-03 02:13:13,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:13,013 INFO L495 AbstractCegarLoop]: Abstraction has 2065 states and 2457 transitions. [2022-11-03 02:13:13,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 02:13:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2457 transitions. [2022-11-03 02:13:13,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:13:13,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:13,017 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 02:13:13,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:13:13,017 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:13,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:13,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1984512892, now seen corresponding path program 1 times [2022-11-03 02:13:13,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:13,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737967574] [2022-11-03 02:13:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:13,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 02:13:13,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:13,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737967574] [2022-11-03 02:13:13,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737967574] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:13:13,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189568632] [2022-11-03 02:13:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:13,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:13:13,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:13,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:13:13,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:13:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:13,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:13:13,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:13:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:13:13,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:13:13,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189568632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:13,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:13:13,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-11-03 02:13:13,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349767609] [2022-11-03 02:13:13,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:13,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:13:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:13,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:13:13,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:13:13,521 INFO L87 Difference]: Start difference. First operand 2065 states and 2457 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-03 02:13:14,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:14,198 INFO L93 Difference]: Finished difference Result 3104 states and 3733 transitions. [2022-11-03 02:13:14,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:13:14,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 67 [2022-11-03 02:13:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:14,209 INFO L225 Difference]: With dead ends: 3104 [2022-11-03 02:13:14,209 INFO L226 Difference]: Without dead ends: 1071 [2022-11-03 02:13:14,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:13:14,220 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 159 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:14,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 163 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:13:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2022-11-03 02:13:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 677. [2022-11-03 02:13:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 454 states have (on average 1.1629955947136563) internal successors, (528), 480 states have internal predecessors, (528), 112 states have call successors, (112), 107 states have call predecessors, (112), 110 states have return successors, (135), 112 states have call predecessors, (135), 112 states have call successors, (135) [2022-11-03 02:13:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 775 transitions. [2022-11-03 02:13:14,334 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 775 transitions. Word has length 67 [2022-11-03 02:13:14,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:14,334 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 775 transitions. [2022-11-03 02:13:14,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-03 02:13:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 775 transitions. [2022-11-03 02:13:14,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:13:14,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:14,338 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 02:13:14,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:13:14,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:13:14,553 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:14,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1296371734, now seen corresponding path program 2 times [2022-11-03 02:13:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:14,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259560208] [2022-11-03 02:13:14,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:14,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 02:13:14,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:14,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259560208] [2022-11-03 02:13:14,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259560208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:13:14,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838914355] [2022-11-03 02:13:14,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:13:14,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:13:14,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:14,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:13:14,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:13:14,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:13:14,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:13:14,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:13:14,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:13:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:13:15,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:13:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-03 02:13:15,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838914355] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:13:15,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1201013216] [2022-11-03 02:13:15,755 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-03 02:13:15,755 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:13:15,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:13:15,756 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:13:15,756 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:13:24,001 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 02:13:24,035 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 299 for LOIs [2022-11-03 02:13:25,950 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 299 for LOIs [2022-11-03 02:13:27,510 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 299 for LOIs [2022-11-03 02:13:27,883 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 316 for LOIs [2022-11-03 02:13:27,955 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:14:14,552 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22636#(and (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~10#1|) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 2 |old(~waterLevel~0)|) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~10#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-03 02:14:14,552 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:14:14,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:14:14,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 19 [2022-11-03 02:14:14,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428104840] [2022-11-03 02:14:14,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:14:14,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 02:14:14,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:14,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 02:14:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1810, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 02:14:14,555 INFO L87 Difference]: Start difference. First operand 677 states and 775 transitions. Second operand has 19 states, 17 states have (on average 6.117647058823529) internal successors, (104), 18 states have internal predecessors, (104), 9 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 10 states have call predecessors, (21), 9 states have call successors, (21) [2022-11-03 02:14:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:20,892 INFO L93 Difference]: Finished difference Result 2273 states and 2752 transitions. [2022-11-03 02:14:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-03 02:14:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.117647058823529) internal successors, (104), 18 states have internal predecessors, (104), 9 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 10 states have call predecessors, (21), 9 states have call successors, (21) Word has length 67 [2022-11-03 02:14:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:20,905 INFO L225 Difference]: With dead ends: 2273 [2022-11-03 02:14:20,905 INFO L226 Difference]: Without dead ends: 1598 [2022-11-03 02:14:20,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 177 SyntacticMatches, 10 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8409 ImplicationChecksByTransitivity, 50.5s TimeCoverageRelationStatistics Valid=1961, Invalid=19501, Unknown=0, NotChecked=0, Total=21462 [2022-11-03 02:14:20,914 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1046 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:20,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 877 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [970 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 02:14:20,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-11-03 02:14:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1434. [2022-11-03 02:14:21,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 961 states have (on average 1.1331945889698232) internal successors, (1089), 1017 states have internal predecessors, (1089), 245 states have call successors, (245), 223 states have call predecessors, (245), 227 states have return successors, (310), 240 states have call predecessors, (310), 245 states have call successors, (310) [2022-11-03 02:14:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1644 transitions. [2022-11-03 02:14:21,148 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1644 transitions. Word has length 67 [2022-11-03 02:14:21,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:21,150 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 1644 transitions. [2022-11-03 02:14:21,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.117647058823529) internal successors, (104), 18 states have internal predecessors, (104), 9 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 10 states have call predecessors, (21), 9 states have call successors, (21) [2022-11-03 02:14:21,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1644 transitions. [2022-11-03 02:14:21,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 02:14:21,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:21,153 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:14:21,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:14:21,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:14:21,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1809383737, now seen corresponding path program 1 times [2022-11-03 02:14:21,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:14:21,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980304760] [2022-11-03 02:14:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:21,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:14:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:14:21,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:14:21,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980304760] [2022-11-03 02:14:21,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980304760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:14:21,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114790610] [2022-11-03 02:14:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:21,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:14:21,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:21,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:14:21,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:14:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:14:22,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-03 02:14:22,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:14:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:14:22,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:14:22,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114790610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:14:22,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:14:22,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 23 [2022-11-03 02:14:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951922201] [2022-11-03 02:14:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:14:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:14:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:14:22,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:14:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:14:22,239 INFO L87 Difference]: Start difference. First operand 1434 states and 1644 transitions. Second operand has 13 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:14:23,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:14:23,173 INFO L93 Difference]: Finished difference Result 2827 states and 3330 transitions. [2022-11-03 02:14:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 02:14:23,174 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 2 states have call successors, (10) Word has length 73 [2022-11-03 02:14:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:14:23,178 INFO L225 Difference]: With dead ends: 2827 [2022-11-03 02:14:23,178 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:14:23,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 02:14:23,186 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 166 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:14:23,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 725 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:14:23,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:14:23,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:14:23,188 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) [2022-11-03 02:14:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:14:23,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-11-03 02:14:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:14:23,189 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:14:23,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:14:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:14:23,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:14:23,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:14:23,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:14:23,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:14:23,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:14:47,444 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 720 726) no Hoare annotation was computed. [2022-11-03 02:14:47,445 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 720 726) the Hoare annotation is: true [2022-11-03 02:14:47,445 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 622 633) the Hoare annotation is: (let ((.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (= 1 ~systemActive~0))) (let ((.cse2 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse3 (and .cse6 .cse7 (= ~methaneLevelCritical~0 1))) (.cse4 (not (< ~waterLevel~0 2))) (.cse5 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse0 (not .cse7)) (.cse1 (not (= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse3) (or .cse5 .cse0 .cse4 .cse6) (or .cse5 .cse0 .cse1 .cse6)))) [2022-11-03 02:14:47,446 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 622 633) no Hoare annotation was computed. [2022-11-03 02:14:47,446 INFO L899 garLoopResultBuilder]: For program point L700-1(lines 699 718) no Hoare annotation was computed. [2022-11-03 02:14:47,446 INFO L895 garLoopResultBuilder]: At program point L762(lines 762 770) the Hoare annotation is: (let ((.cse13 (= ~pumpRunning~0 0))) (let ((.cse10 (= 1 ~systemActive~0)) (.cse5 (not .cse13)) (.cse16 (+ ~waterLevel~0 1)) (.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (= ~waterLevel~0 1)) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse11 (not .cse9)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (or (<= .cse16 |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|)))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse12 (let ((.cse14 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse13 .cse14) (and .cse5 (let ((.cse15 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse15) .cse14) (and (= |old(~waterLevel~0)| .cse16) .cse15))))))) (.cse1 (not .cse10)) (.cse2 (not (< |old(~waterLevel~0)| 2))) (.cse3 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (and .cse4 .cse5 .cse6) .cse3 .cse7) (or (and .cse4 .cse0 .cse8 .cse9 .cse10 .cse6) .cse1 .cse11 .cse7) (or .cse1 .cse2 .cse11 (and .cse4 .cse0 .cse8 .cse9 .cse10 .cse12)) (or (and .cse4 .cse12) .cse1 .cse2 .cse3))))) [2022-11-03 02:14:47,447 INFO L899 garLoopResultBuilder]: For program point L758(lines 758 775) no Hoare annotation was computed. [2022-11-03 02:14:47,447 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2022-11-03 02:14:47,447 INFO L895 garLoopResultBuilder]: At program point L69(lines 69 82) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse11 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (< ~waterLevel~0 2)) (.cse6 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse8 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1))) (or (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse7 .cse8 .cse9 .cse10) .cse1 (and (<= 2 ~waterLevel~0) .cse7 .cse3 (= ~pumpRunning~0 1)) (and .cse6 (<= ~waterLevel~0 1) .cse7 .cse8 .cse3) .cse11)) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 .cse4) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse11))) [2022-11-03 02:14:47,448 INFO L895 garLoopResultBuilder]: At program point L69-1(lines 54 86) the Hoare annotation is: (let ((.cse16 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= ~methaneLevelCritical~0 1)) (.cse14 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse15 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse12 (not (<= |old(~waterLevel~0)| 1))) (.cse11 (and .cse14 .cse15)) (.cse18 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse6 (= ~waterLevel~0 1)) (.cse9 (not .cse4)) (.cse2 (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 1)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (not .cse3)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= ~pumpRunning~0 0)) (.cse19 (<= ~waterLevel~0 1)) (.cse17 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse13 (not .cse16))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 (and .cse1 .cse8 .cse3 .cse6) .cse9 .cse10 .cse11) (or .cse12 .cse1 .cse7 .cse13 .cse11) (or .cse7 (and .cse14 .cse15 (= ~pumpRunning~0 1)) (and .cse0 .cse1 .cse16 .cse14 .cse3 .cse17 .cse5 .cse6) .cse13 .cse10 (and .cse1 .cse8 .cse14 .cse3 .cse17 .cse6)) (or .cse12 .cse1 .cse7 .cse9 .cse11) (or .cse7 .cse13 .cse18 .cse10 .cse6) (or .cse7 .cse18 .cse9 .cse10 .cse6) (or (and .cse1 .cse8 .cse14 .cse3 .cse5) .cse7 .cse9 (and (<= 2 ~waterLevel~0) .cse15) (and .cse0 .cse8 .cse19 .cse3) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (not (< |old(~waterLevel~0)| 3))) (or (and .cse0 .cse1 .cse16 .cse14 .cse3 .cse17 .cse5) (and .cse1 .cse8 .cse14 .cse3 .cse17 .cse5) .cse7 (not (< |old(~waterLevel~0)| 2)) (and .cse0 .cse8 .cse19 .cse3 .cse17) .cse13)))) [2022-11-03 02:14:47,448 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse10 (= ~methaneLevelCritical~0 0)) (.cse11 (= 1 ~systemActive~0))) (let ((.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not .cse11)) (.cse6 (not .cse10)) (.cse13 (= ~pumpRunning~0 0)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse3 .cse7) (or .cse0 .cse6 .cse8 .cse2 .cse4) (or .cse0 .cse8 .cse1 .cse2 .cse4) (or (and .cse9 .cse5 .cse10 .cse11 .cse12 .cse4) .cse0 .cse6 (and .cse13 .cse4) .cse2 (and .cse3 (= ~pumpRunning~0 1))) (or (and .cse13 .cse3) (and .cse9 .cse5 .cse12) .cse0 .cse1 (and (<= 2 ~waterLevel~0) .cse3) (and .cse5 .cse13 .cse12) .cse7) (or .cse0 (not (< |old(~waterLevel~0)| 2)) .cse6 (and .cse13 .cse12) (and .cse9 .cse5 .cse10 .cse11 .cse12))))) [2022-11-03 02:14:47,449 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-03 02:14:47,449 INFO L895 garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse13 (= ~pumpRunning~0 0))) (let ((.cse10 (= 1 ~systemActive~0)) (.cse5 (not .cse13)) (.cse16 (+ ~waterLevel~0 1)) (.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (= ~waterLevel~0 1)) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse11 (not .cse9)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (or (<= .cse16 |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|)))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse12 (let ((.cse14 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse13 .cse14) (and .cse5 (let ((.cse15 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse15) .cse14) (and (= |old(~waterLevel~0)| .cse16) .cse15))))))) (.cse1 (not .cse10)) (.cse2 (not (< |old(~waterLevel~0)| 2))) (.cse3 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (and .cse4 .cse5 .cse6) .cse3 .cse7) (or (and .cse4 .cse0 .cse8 .cse9 .cse10 .cse6) .cse1 .cse11 .cse7) (or .cse1 .cse2 .cse11 (and .cse4 .cse0 .cse8 .cse9 .cse10 .cse12)) (or (and .cse4 .cse12) .cse1 .cse2 .cse3))))) [2022-11-03 02:14:47,450 INFO L895 garLoopResultBuilder]: At program point L760(line 760) the Hoare annotation is: (let ((.cse13 (= ~pumpRunning~0 0))) (let ((.cse10 (= 1 ~systemActive~0)) (.cse5 (not .cse13)) (.cse16 (+ ~waterLevel~0 1)) (.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (= ~waterLevel~0 1)) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse11 (not .cse9)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (or (<= .cse16 |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|)))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse12 (let ((.cse14 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse13 .cse14) (and .cse5 (let ((.cse15 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse15) .cse14) (and (= |old(~waterLevel~0)| .cse16) .cse15))))))) (.cse1 (not .cse10)) (.cse2 (not (< |old(~waterLevel~0)| 2))) (.cse3 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (and .cse4 .cse5 .cse6) .cse3 .cse7) (or (and .cse4 .cse0 .cse8 .cse9 .cse10 .cse6) .cse1 .cse11 .cse7) (or .cse1 .cse2 .cse11 (and .cse4 .cse0 .cse8 .cse9 .cse10 .cse12)) (or (and .cse4 .cse12) .cse1 .cse2 .cse3))))) [2022-11-03 02:14:47,450 INFO L899 garLoopResultBuilder]: For program point L760-1(line 760) no Hoare annotation was computed. [2022-11-03 02:14:47,450 INFO L895 garLoopResultBuilder]: At program point L967(line 967) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (< |old(~waterLevel~0)| 2)) .cse1) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse0 (not (= ~methaneLevelCritical~0 1)) (not (< |old(~waterLevel~0)| 3))))) [2022-11-03 02:14:47,450 INFO L895 garLoopResultBuilder]: At program point L773(line 773) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (< |old(~waterLevel~0)| 2))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse5 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse4) (or .cse0 .cse3 .cse5 .cse4) (or .cse0 .cse1 .cse3 .cse5))) [2022-11-03 02:14:47,451 INFO L895 garLoopResultBuilder]: At program point L773-1(lines 754 778) the Hoare annotation is: (let ((.cse10 (= ~methaneLevelCritical~0 0)) (.cse11 (= 1 ~systemActive~0))) (let ((.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not .cse11)) (.cse6 (not .cse10)) (.cse13 (= ~pumpRunning~0 0)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse3 .cse7) (or .cse0 .cse6 .cse8 .cse2 .cse4) (or .cse0 .cse8 .cse1 .cse2 .cse4) (or (and .cse9 .cse5 .cse10 .cse11 .cse12 .cse4) .cse0 .cse6 (and .cse13 .cse4) .cse2 (and .cse3 (= ~pumpRunning~0 1))) (or (and .cse13 .cse3) (and .cse9 .cse5 .cse12) .cse0 .cse1 (and (<= 2 ~waterLevel~0) .cse3) (and .cse5 .cse13 .cse12) .cse7) (or .cse0 (not (< |old(~waterLevel~0)| 2)) .cse6 (and .cse13 .cse12) (and .cse9 .cse5 .cse10 .cse11 .cse12))))) [2022-11-03 02:14:47,451 INFO L899 garLoopResultBuilder]: For program point L707-1(lines 707 713) no Hoare annotation was computed. [2022-11-03 02:14:47,452 INFO L895 garLoopResultBuilder]: At program point L63(lines 63 83) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~pumpRunning~0 0)) (.cse19 (= ~methaneLevelCritical~0 0)) (.cse2 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse20 (= 1 ~systemActive~0)) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse14 (< ~waterLevel~0 2))) (let ((.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse11 (not (= |old(~waterLevel~0)| 2))) (.cse12 (= ~waterLevel~0 1)) (.cse7 (<= 2 ~waterLevel~0)) (.cse13 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3))) (.cse16 (and .cse1 .cse5 .cse19 .cse2 .cse20 .cse3 .cse14)) (.cse4 (not .cse20)) (.cse15 (not (< |old(~waterLevel~0)| 2))) (.cse17 (and .cse5 .cse19 (<= ~waterLevel~0 1) .cse20 .cse6)) (.cse10 (not .cse19)) (.cse18 (and .cse0 .cse1 .cse19 .cse2 .cse20 .cse3 .cse14))) (and (or (and .cse0 .cse1 .cse2 .cse3) .cse4 (and .cse5 .cse2 .cse6) (and .cse7 .cse2 .cse6) .cse8 (and .cse1 .cse5 .cse2 .cse3) .cse9) (or .cse4 .cse10 .cse11 .cse6 .cse12) (or .cse4 .cse13 .cse8 .cse14 .cse9) (or .cse4 .cse8 .cse11 .cse6 .cse12) (or .cse4 .cse15 .cse2 .cse10) (or (and .cse7 .cse2 (= ~pumpRunning~0 1)) .cse16 .cse4 .cse17 .cse10 .cse18 .cse9) (or .cse4 .cse10 .cse13 .cse14 .cse9) (or .cse16 .cse4 .cse15 .cse17 .cse10 .cse18)))) [2022-11-03 02:14:47,452 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 696 719) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2))) [2022-11-03 02:14:47,452 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 696 719) no Hoare annotation was computed. [2022-11-03 02:14:47,452 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2022-11-03 02:14:47,453 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 494 523) no Hoare annotation was computed. [2022-11-03 02:14:47,453 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 494 523) the Hoare annotation is: true [2022-11-03 02:14:47,453 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2022-11-03 02:14:47,453 INFO L902 garLoopResultBuilder]: At program point L508-1(lines 508 512) the Hoare annotation is: true [2022-11-03 02:14:47,453 INFO L902 garLoopResultBuilder]: At program point L504-2(lines 504 518) the Hoare annotation is: true [2022-11-03 02:14:47,454 INFO L902 garLoopResultBuilder]: At program point L500(line 500) the Hoare annotation is: true [2022-11-03 02:14:47,454 INFO L899 garLoopResultBuilder]: For program point L500-1(line 500) no Hoare annotation was computed. [2022-11-03 02:14:47,454 INFO L902 garLoopResultBuilder]: At program point L519(lines 494 523) the Hoare annotation is: true [2022-11-03 02:14:47,454 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-11-03 02:14:47,454 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 634 642) the Hoare annotation is: true [2022-11-03 02:14:47,454 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 634 642) no Hoare annotation was computed. [2022-11-03 02:14:47,455 INFO L895 garLoopResultBuilder]: At program point L944-2(lines 936 949) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (< ~waterLevel~0 2)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse3 (< ~waterLevel~0 3)))) [2022-11-03 02:14:47,455 INFO L899 garLoopResultBuilder]: For program point L907(lines 906 953) no Hoare annotation was computed. [2022-11-03 02:14:47,455 INFO L895 garLoopResultBuilder]: At program point L928(line 928) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (< ~waterLevel~0 3))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2 .cse3))) [2022-11-03 02:14:47,455 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:14:47,456 INFO L902 garLoopResultBuilder]: At program point L957(lines 896 961) the Hoare annotation is: true [2022-11-03 02:14:47,456 INFO L899 garLoopResultBuilder]: For program point L916(lines 916 922) no Hoare annotation was computed. [2022-11-03 02:14:47,456 INFO L899 garLoopResultBuilder]: For program point L916-1(lines 916 922) no Hoare annotation was computed. [2022-11-03 02:14:47,456 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:14:47,456 INFO L895 garLoopResultBuilder]: At program point L954(lines 905 955) the Hoare annotation is: false [2022-11-03 02:14:47,457 INFO L895 garLoopResultBuilder]: At program point L579(lines 579 586) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= ~waterLevel~0 1)) [2022-11-03 02:14:47,457 INFO L902 garLoopResultBuilder]: At program point L579-2(lines 579 586) the Hoare annotation is: true [2022-11-03 02:14:47,457 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 932) no Hoare annotation was computed. [2022-11-03 02:14:47,457 INFO L895 garLoopResultBuilder]: At program point L926-1(lines 926 932) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (< ~waterLevel~0 2)) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse3 (< ~waterLevel~0 3)))) [2022-11-03 02:14:47,457 INFO L895 garLoopResultBuilder]: At program point L951(lines 906 953) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (< ~waterLevel~0 2)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse3 (< ~waterLevel~0 3) (= ~pumpRunning~0 1)))) [2022-11-03 02:14:47,458 INFO L895 garLoopResultBuilder]: At program point L918(line 918) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (< ~waterLevel~0 3))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2 .cse3))) [2022-11-03 02:14:47,458 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 610 621) no Hoare annotation was computed. [2022-11-03 02:14:47,458 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 610 621) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse2))) [2022-11-03 02:14:47,458 INFO L895 garLoopResultBuilder]: At program point L742(line 742) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (not (< ~waterLevel~0 2))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not .cse4)) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (= ~pumpRunning~0 0)) (.cse7 (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| 0)) (.cse8 (<= ~waterLevel~0 1)) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse1 .cse3 .cse4 .cse5) (or .cse1 .cse3 .cse4 .cse2) (or .cse1 (and .cse6 .cse7) .cse2 (not .cse8)) (or .cse0 .cse1 (and .cse6 .cse7 .cse8) .cse5 (not (< ~waterLevel~0 3)))))) [2022-11-03 02:14:47,459 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 744) no Hoare annotation was computed. [2022-11-03 02:14:47,459 INFO L895 garLoopResultBuilder]: At program point L732(lines 732 749) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (< ~waterLevel~0 2))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (< ~waterLevel~0 3))) (or .cse4 .cse2 .cse5 .cse6) (or .cse4 .cse2 .cse5 .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse6))) [2022-11-03 02:14:47,459 INFO L895 garLoopResultBuilder]: At program point L792(line 792) the Hoare annotation is: (let ((.cse1 (not (< ~waterLevel~0 2))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| 1))) (.cse5 (not (= 2 ~waterLevel~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse6) (or .cse3 .cse0 .cse4 .cse5 .cse2))) [2022-11-03 02:14:47,460 INFO L895 garLoopResultBuilder]: At program point L792-1(line 792) the Hoare annotation is: (let ((.cse1 (not (< ~waterLevel~0 2))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse5 (and (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret39#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~5#1| 1))) (.cse6 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse4 .cse0 .cse2 .cse5 .cse6) (or .cse4 .cse0 .cse3 .cse5 .cse6))) [2022-11-03 02:14:47,460 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 728 752) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (< ~waterLevel~0 2))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (< ~waterLevel~0 3))) (or .cse4 .cse2 .cse5 .cse6) (or .cse4 .cse2 .cse5 .cse3) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0)) .cse6))) [2022-11-03 02:14:47,460 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 728 752) no Hoare annotation was computed. [2022-11-03 02:14:47,460 INFO L895 garLoopResultBuilder]: At program point L747(line 747) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 2 ~waterLevel~0))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (< ~waterLevel~0 2))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse3 (not (<= ~waterLevel~0 1))) (or .cse6 .cse1 .cse4 .cse3) (or .cse0 .cse1 .cse2 .cse5) (or .cse6 .cse1 .cse4 .cse5))) [2022-11-03 02:14:47,460 INFO L899 garLoopResultBuilder]: For program point L747-1(lines 728 752) no Hoare annotation was computed. [2022-11-03 02:14:47,461 INFO L902 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: true [2022-11-03 02:14:47,461 INFO L899 garLoopResultBuilder]: For program point L817-1(line 817) no Hoare annotation was computed. [2022-11-03 02:14:47,461 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 812 822) the Hoare annotation is: true [2022-11-03 02:14:47,461 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 812 822) no Hoare annotation was computed. [2022-11-03 02:14:47,465 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:14:47,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:14:47,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:14:47 BoogieIcfgContainer [2022-11-03 02:14:47,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:14:47,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:14:47,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:14:47,508 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:14:47,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:12:00" (3/4) ... [2022-11-03 02:14:47,512 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:14:47,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:14:47,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:14:47,517 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:14:47,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:14:47,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 02:14:47,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:14:47,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:14:47,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 02:14:47,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2022-11-03 02:14:47,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 02:14:47,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 02:14:47,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:14:47,528 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:14:47,528 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:14:47,529 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:14:47,553 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) [2022-11-03 02:14:47,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || ((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) [2022-11-03 02:14:47,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == 1))) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) || !(methaneLevelCritical == 1)) [2022-11-03 02:14:47,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 1)) && (((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2))) && ((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && (waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel)))) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && (waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel)))) && methaneLevelCritical == 0) && 1 == systemActive) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))))))) && ((((pumpRunning == \old(pumpRunning) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))))) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 1)) [2022-11-03 02:14:47,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || ((2 <= waterLevel && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || methaneLevelCritical == tmp) || !(methaneLevelCritical == 0))) && ((((((((2 <= waterLevel && methaneLevelCritical == tmp) && pumpRunning == 1) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(1 == systemActive)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3))) && (((((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) [2022-11-03 02:14:47,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 1) && 1 == systemActive) && methaneLevelCritical == 1) && waterLevel <= \old(waterLevel)) && waterLevel == 1) || !(1 == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && (((((!(1 == systemActive) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || (((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel == 1)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel == 1))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 1) && 1 == systemActive) && methaneLevelCritical == 1) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3))) && (((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) [2022-11-03 02:14:47,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(waterLevel < 2)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(waterLevel < 2)) || !(methaneLevelCritical == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((aux-isMethaneAlarm()-aux == methaneLevelCritical && pumpRunning == 0) && tmp == 1)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((aux-isMethaneAlarm()-aux == methaneLevelCritical && pumpRunning == 0) && tmp == 1)) || !(waterLevel < 3)) [2022-11-03 02:14:47,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1) && (((((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp___0 <= 1) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) [2022-11-03 02:14:47,557 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && ((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) [2022-11-03 02:14:47,581 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:14:47,581 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:14:47,582 INFO L158 Benchmark]: Toolchain (without parser) took 168620.40ms. Allocated memory was 90.2MB in the beginning and 627.0MB in the end (delta: 536.9MB). Free memory was 52.7MB in the beginning and 416.6MB in the end (delta: -363.9MB). Peak memory consumption was 173.6MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,582 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:14:47,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.74ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 59.4MB in the end (delta: -6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.55ms. Allocated memory is still 90.2MB. Free memory was 59.4MB in the beginning and 56.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,583 INFO L158 Benchmark]: Boogie Preprocessor took 28.36ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 55.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:14:47,583 INFO L158 Benchmark]: RCFGBuilder took 834.94ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 55.1MB in the beginning and 81.6MB in the end (delta: -26.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,583 INFO L158 Benchmark]: TraceAbstraction took 166925.30ms. Allocated memory was 117.4MB in the beginning and 627.0MB in the end (delta: 509.6MB). Free memory was 80.6MB in the beginning and 421.9MB in the end (delta: -341.2MB). Peak memory consumption was 376.6MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,584 INFO L158 Benchmark]: Witness Printer took 73.39ms. Allocated memory is still 627.0MB. Free memory was 421.9MB in the beginning and 416.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:14:47,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.74ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 59.4MB in the end (delta: -6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.55ms. Allocated memory is still 90.2MB. Free memory was 59.4MB in the beginning and 56.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.36ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 55.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 834.94ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 55.1MB in the beginning and 81.6MB in the end (delta: -26.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * TraceAbstraction took 166925.30ms. Allocated memory was 117.4MB in the beginning and 627.0MB in the end (delta: 509.6MB). Free memory was 80.6MB in the beginning and 421.9MB in the end (delta: -341.2MB). Peak memory consumption was 376.6MB. Max. memory is 16.1GB. * Witness Printer took 73.39ms. Allocated memory is still 627.0MB. Free memory was 421.9MB in the beginning and 416.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 967]: 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 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 166.8s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 24.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2554 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2517 mSDsluCounter, 4128 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3957 mSDsCounter, 1664 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6402 IncrementalHoareTripleChecker+Invalid, 8066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1664 mSolverCounterUnsat, 903 mSDtfsCounter, 6402 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 768 GetRequests, 415 SyntacticMatches, 15 SemanticMatches, 338 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13025 ImplicationChecksByTransitivity, 106.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2065occurred in iteration=8, InterpolantAutomatonStates: 255, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 704 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 4558 PreInvPairs, 5531 NumberOfFragments, 2899 HoareAnnotationTreeSize, 4558 FomulaSimplifications, 89990 FormulaSimplificationTreeSizeReduction, 5.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 165413 FormulaSimplificationTreeSizeReductionInter, 18.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 679 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 768 ConstructedInterpolants, 0 QuantifiedInterpolants, 2055 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1673 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 189/223 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: 54]: Loop Invariant Derived loop invariant: (((((((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 1) && 1 == systemActive) && methaneLevelCritical == 1) && waterLevel <= \old(waterLevel)) && waterLevel == 1) || !(1 == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel)) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && (((((!(1 == systemActive) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || (((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel == 1)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel == 1))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == 1) && 1 == systemActive) && methaneLevelCritical == 1) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3))) && (((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(waterLevel < 2)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(waterLevel < 2)) || !(methaneLevelCritical == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((aux-isMethaneAlarm()-aux == methaneLevelCritical && pumpRunning == 0) && tmp == 1)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((aux-isMethaneAlarm()-aux == methaneLevelCritical && pumpRunning == 0) && tmp == 1)) || !(waterLevel < 3)) - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: (((((2 == waterLevel && 1 == systemActive) && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) || ((((1 == systemActive && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel < 2)) || ((((methaneLevelCritical == 0 && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) && waterLevel < 3) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || ((2 <= waterLevel && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || methaneLevelCritical == tmp) || !(methaneLevelCritical == 0))) && ((((((((2 <= waterLevel && methaneLevelCritical == tmp) && pumpRunning == 1) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(1 == systemActive)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3))) && (((((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1) && (((((((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp___0 <= 1) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: ((((((2 == waterLevel && 1 == systemActive) && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) || ((((1 == systemActive && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel < 2)) || ((((methaneLevelCritical == 0 && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) && waterLevel < 2)) || (((((methaneLevelCritical == 0 && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) && waterLevel < 3) && pumpRunning == 1) - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == 1))) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 762]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 1)) && (((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2))) && ((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && (waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel)))) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && (waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel)))) && methaneLevelCritical == 0) && 1 == systemActive) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))))))) && ((((pumpRunning == \old(pumpRunning) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))))) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && tmp == 1) && waterLevel == 1 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && ((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 754]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1)) || !(\old(waterLevel) == 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1))) && (((((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || ((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-11-03 02:14:47,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e68635d0-0a17-4711-8b48-dd01305bdd32/bin/utaipan-7li7fVZpFI/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