./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 e04fb08f 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_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/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_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0 --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-e04fb08 [2022-11-16 19:26:02,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:26:02,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:26:02,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:26:02,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:26:02,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:26:02,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:26:02,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:26:02,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:26:02,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:26:02,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:26:02,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:26:02,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:26:02,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:26:02,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:26:02,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:26:02,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:26:02,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:26:02,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:26:02,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:26:02,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:26:02,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:26:02,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:26:02,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:26:02,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:26:02,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:26:02,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:26:02,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:26:02,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:26:02,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:26:02,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:26:02,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:26:02,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:26:02,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:26:02,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:26:02,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:26:02,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:26:02,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:26:02,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:26:02,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:26:02,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:26:02,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:26:02,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:26:02,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:26:02,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:26:02,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:26:02,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:26:02,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:26:02,467 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:26:02,467 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:26:02,467 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:26:02,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:26:02,469 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:26:02,469 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:26:02,469 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:26:02,470 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:26:02,470 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:26:02,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:26:02,471 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:26:02,471 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:26:02,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:26:02,472 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:26:02,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:26:02,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:26:02,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:26:02,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:26:02,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:26:02,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:26:02,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:26:02,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:26:02,476 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:26:02,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:26:02,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:26:02,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:26:02,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:26:02,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:26:02,478 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:26:02,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:26:02,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:26:02,479 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:26:02,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:26:02,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:26:02,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:26:02,480 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_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e [2022-11-16 19:26:02,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:26:02,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:26:02,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:26:02,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:26:02,789 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:26:02,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2022-11-16 19:26:02,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/data/d49c9a793/d77d8ec1d0a34d038a540cc91a2f5482/FLAG0abf8e8d3 [2022-11-16 19:26:03,369 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:26:03,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2022-11-16 19:26:03,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/data/d49c9a793/d77d8ec1d0a34d038a540cc91a2f5482/FLAG0abf8e8d3 [2022-11-16 19:26:03,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/data/d49c9a793/d77d8ec1d0a34d038a540cc91a2f5482 [2022-11-16 19:26:03,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:26:03,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:26:03,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:26:03,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:26:03,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:26:03,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:26:03" (1/1) ... [2022-11-16 19:26:03,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1512c1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:03, skipping insertion in model container [2022-11-16 19:26:03,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:26:03" (1/1) ... [2022-11-16 19:26:03,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:26:03,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:26:04,075 WARN L229 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_e06f30ac-4db2-40a8-b51f-287eadaf8f22/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2022-11-16 19:26:04,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:26:04,087 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:26:04,190 WARN L229 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_e06f30ac-4db2-40a8-b51f-287eadaf8f22/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2022-11-16 19:26:04,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:26:04,220 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:26:04,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04 WrapperNode [2022-11-16 19:26:04,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:26:04,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:26:04,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:26:04,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:26:04,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,286 INFO L138 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 253 [2022-11-16 19:26:04,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:26:04,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:26:04,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:26:04,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:26:04,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:26:04,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:26:04,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:26:04,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:26:04,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (1/1) ... [2022-11-16 19:26:04,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:26:04,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:26:04,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:26:04,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:26:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:26:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 19:26:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 19:26:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 19:26:04,424 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 19:26:04,424 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 19:26:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 19:26:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-16 19:26:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-16 19:26:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 19:26:04,425 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 19:26:04,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-16 19:26:04,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-16 19:26:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-16 19:26:04,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-16 19:26:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:26:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 19:26:04,426 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 19:26:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:26:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:26:04,500 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:26:04,502 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:26:04,889 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:26:05,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:26:05,063 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 19:26:05,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:26:05 BoogieIcfgContainer [2022-11-16 19:26:05,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:26:05,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:26:05,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:26:05,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:26:05,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:26:03" (1/3) ... [2022-11-16 19:26:05,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca46c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:26:05, skipping insertion in model container [2022-11-16 19:26:05,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:26:04" (2/3) ... [2022-11-16 19:26:05,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca46c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:26:05, skipping insertion in model container [2022-11-16 19:26:05,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:26:05" (3/3) ... [2022-11-16 19:26:05,084 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2022-11-16 19:26:05,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:26:05,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:26:05,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:26:05,192 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;@3c349ec9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:26:05,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:26:05,198 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) [2022-11-16 19:26:05,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 19:26:05,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:05,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:26:05,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1316280313, now seen corresponding path program 1 times [2022-11-16 19:26:05,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:05,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087910026] [2022-11-16 19:26:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:05,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:05,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:05,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087910026] [2022-11-16 19:26:05,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087910026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:26:05,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:26:05,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:26:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535211530] [2022-11-16 19:26:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:26:05,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 19:26:05,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:26:05,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 19:26:05,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 19:26:05,490 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) [2022-11-16 19:26:05,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:05,617 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-16 19:26:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 19:26:05,619 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 [2022-11-16 19:26:05,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:05,637 INFO L225 Difference]: With dead ends: 126 [2022-11-16 19:26:05,638 INFO L226 Difference]: Without dead ends: 59 [2022-11-16 19:26:05,643 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 [2022-11-16 19:26:05,649 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:26:05,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:26:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-16 19:26:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-16 19:26:05,702 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) [2022-11-16 19:26:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-16 19:26:05,712 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-11-16 19:26:05,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:05,713 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-16 19:26:05,714 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) [2022-11-16 19:26:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-16 19:26:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 19:26:05,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:05,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:26:05,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:26:05,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:05,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:05,725 INFO L85 PathProgramCache]: Analyzing trace with hash 333894127, now seen corresponding path program 1 times [2022-11-16 19:26:05,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:05,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708314162] [2022-11-16 19:26:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:05,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:05,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:05,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708314162] [2022-11-16 19:26:05,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708314162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:26:05,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:26:05,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:26:05,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180659666] [2022-11-16 19:26:05,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:26:05,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:26:05,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:26:05,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:26:05,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:26:05,934 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) [2022-11-16 19:26:06,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:06,011 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-11-16 19:26:06,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:26:06,012 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 [2022-11-16 19:26:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:06,017 INFO L225 Difference]: With dead ends: 95 [2022-11-16 19:26:06,018 INFO L226 Difference]: Without dead ends: 51 [2022-11-16 19:26:06,026 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 [2022-11-16 19:26:06,029 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:26:06,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:26:06,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-16 19:26:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-16 19:26:06,040 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) [2022-11-16 19:26:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-11-16 19:26:06,044 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-11-16 19:26:06,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:06,046 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-11-16 19:26:06,046 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) [2022-11-16 19:26:06,047 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-11-16 19:26:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 19:26:06,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:06,049 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] [2022-11-16 19:26:06,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:26:06,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:06,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 684818900, now seen corresponding path program 1 times [2022-11-16 19:26:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:06,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199783055] [2022-11-16 19:26:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:06,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:06,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199783055] [2022-11-16 19:26:06,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199783055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:26:06,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:26:06,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:26:06,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106828566] [2022-11-16 19:26:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:26:06,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:26:06,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:26:06,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:26:06,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:26:06,405 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) [2022-11-16 19:26:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:06,637 INFO L93 Difference]: Finished difference Result 184 states and 239 transitions. [2022-11-16 19:26:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 19:26:06,638 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 [2022-11-16 19:26:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:06,640 INFO L225 Difference]: With dead ends: 184 [2022-11-16 19:26:06,640 INFO L226 Difference]: Without dead ends: 135 [2022-11-16 19:26:06,641 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 [2022-11-16 19:26:06,642 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 113 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:26:06,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 222 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:26:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-16 19:26:06,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 127. [2022-11-16 19:26:06,663 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) [2022-11-16 19:26:06,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2022-11-16 19:26:06,664 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 20 [2022-11-16 19:26:06,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:06,664 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2022-11-16 19:26:06,665 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) [2022-11-16 19:26:06,665 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2022-11-16 19:26:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 19:26:06,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:06,666 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] [2022-11-16 19:26:06,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:26:06,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:06,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:06,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1779037157, now seen corresponding path program 1 times [2022-11-16 19:26:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:06,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28067991] [2022-11-16 19:26:06,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:06,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:06,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28067991] [2022-11-16 19:26:06,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28067991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:26:06,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:26:06,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:26:06,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663123914] [2022-11-16 19:26:06,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:26:06,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:26:06,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:26:06,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:26:06,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:26:06,776 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) [2022-11-16 19:26:06,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:06,825 INFO L93 Difference]: Finished difference Result 252 states and 317 transitions. [2022-11-16 19:26:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:26:06,826 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 [2022-11-16 19:26:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:06,833 INFO L225 Difference]: With dead ends: 252 [2022-11-16 19:26:06,833 INFO L226 Difference]: Without dead ends: 127 [2022-11-16 19:26:06,836 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 [2022-11-16 19:26:06,843 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 [2022-11-16 19:26:06,845 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] [2022-11-16 19:26:06,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-16 19:26:06,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-11-16 19:26:06,875 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) [2022-11-16 19:26:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 155 transitions. [2022-11-16 19:26:06,877 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 155 transitions. Word has length 23 [2022-11-16 19:26:06,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:06,877 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 155 transitions. [2022-11-16 19:26:06,877 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) [2022-11-16 19:26:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 155 transitions. [2022-11-16 19:26:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 19:26:06,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:06,881 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] [2022-11-16 19:26:06,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:26:06,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1616450709, now seen corresponding path program 1 times [2022-11-16 19:26:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:06,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221762751] [2022-11-16 19:26:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:07,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:07,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221762751] [2022-11-16 19:26:07,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221762751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:26:07,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:26:07,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:26:07,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943037829] [2022-11-16 19:26:07,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:26:07,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:26:07,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:26:07,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:26:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:26:07,025 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) [2022-11-16 19:26:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:07,283 INFO L93 Difference]: Finished difference Result 337 states and 413 transitions. [2022-11-16 19:26:07,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:26:07,285 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 [2022-11-16 19:26:07,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:07,289 INFO L225 Difference]: With dead ends: 337 [2022-11-16 19:26:07,289 INFO L226 Difference]: Without dead ends: 212 [2022-11-16 19:26:07,291 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 [2022-11-16 19:26:07,292 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 116 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:26:07,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 151 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:26:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-16 19:26:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2022-11-16 19:26:07,352 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) [2022-11-16 19:26:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 245 transitions. [2022-11-16 19:26:07,354 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 245 transitions. Word has length 33 [2022-11-16 19:26:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:07,355 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 245 transitions. [2022-11-16 19:26:07,355 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) [2022-11-16 19:26:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 245 transitions. [2022-11-16 19:26:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-16 19:26:07,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:07,357 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] [2022-11-16 19:26:07,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:26:07,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:07,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash -873077439, now seen corresponding path program 1 times [2022-11-16 19:26:07,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:07,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538145478] [2022-11-16 19:26:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:07,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:07,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:07,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538145478] [2022-11-16 19:26:07,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538145478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:26:07,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:26:07,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 19:26:07,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875737776] [2022-11-16 19:26:07,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:26:07,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 19:26:07,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:26:07,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 19:26:07,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 19:26:07,706 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) [2022-11-16 19:26:07,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:26:07,923 INFO L93 Difference]: Finished difference Result 418 states and 513 transitions. [2022-11-16 19:26:07,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 19:26:07,925 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 [2022-11-16 19:26:07,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:26:07,928 INFO L225 Difference]: With dead ends: 418 [2022-11-16 19:26:07,929 INFO L226 Difference]: Without dead ends: 310 [2022-11-16 19:26:07,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 19:26:07,930 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 139 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:26:07,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 313 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:26:07,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-16 19:26:07,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 288. [2022-11-16 19:26:07,967 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) [2022-11-16 19:26:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 341 transitions. [2022-11-16 19:26:07,970 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 341 transitions. Word has length 34 [2022-11-16 19:26:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:26:07,970 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 341 transitions. [2022-11-16 19:26:07,970 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) [2022-11-16 19:26:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 341 transitions. [2022-11-16 19:26:07,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 19:26:07,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:26:07,972 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] [2022-11-16 19:26:07,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 19:26:07,972 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:26:07,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:26:07,973 INFO L85 PathProgramCache]: Analyzing trace with hash 890965338, now seen corresponding path program 1 times [2022-11-16 19:26:07,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:26:07,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530965212] [2022-11-16 19:26:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:07,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:26:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:26:08,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:26:08,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530965212] [2022-11-16 19:26:08,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530965212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:26:08,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012404052] [2022-11-16 19:26:08,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:26:08,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:26:08,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:26:08,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:26:08,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:26:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:26:08,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-16 19:26:08,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:26:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:26:08,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:26:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:26:09,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012404052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:26:09,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1548657105] [2022-11-16 19:26:09,255 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2022-11-16 19:26:09,255 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:26:09,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:26:09,265 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:26:09,266 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:26:11,019 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-16 19:26:11,100 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 295 for LOIs [2022-11-16 19:26:15,856 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 292 for LOIs [2022-11-16 19:26:16,680 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 293 for LOIs [2022-11-16 19:26:17,080 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 45 for LOIs [2022-11-16 19:26:17,092 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:27:06,761 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 [2022-11-16 19:27:06,761 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:27:06,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:27:06,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 12] total 25 [2022-11-16 19:27:06,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19387640] [2022-11-16 19:27:06,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:27:06,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 19:27:06,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:27:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 19:27:06,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=2355, Unknown=0, NotChecked=0, Total=2652 [2022-11-16 19:27:06,765 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) [2022-11-16 19:27:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:27:10,501 INFO L93 Difference]: Finished difference Result 1610 states and 1976 transitions. [2022-11-16 19:27:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-16 19:27:10,502 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 [2022-11-16 19:27:10,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:27:10,515 INFO L225 Difference]: With dead ends: 1610 [2022-11-16 19:27:10,515 INFO L226 Difference]: Without dead ends: 1324 [2022-11-16 19:27:10,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 76 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4424 ImplicationChecksByTransitivity, 51.9s TimeCoverageRelationStatistics Valid=1064, Invalid=10926, Unknown=0, NotChecked=0, Total=11990 [2022-11-16 19:27:10,522 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 625 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 19:27:10,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1323 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 19:27:10,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-11-16 19:27:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1214. [2022-11-16 19:27:10,639 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) [2022-11-16 19:27:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1454 transitions. [2022-11-16 19:27:10,647 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1454 transitions. Word has length 39 [2022-11-16 19:27:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:27:10,647 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 1454 transitions. [2022-11-16 19:27:10,648 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) [2022-11-16 19:27:10,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1454 transitions. [2022-11-16 19:27:10,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-16 19:27:10,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:27:10,650 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] [2022-11-16 19:27:10,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 19:27:10,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:27:10,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:27:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:27:10,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1364350968, now seen corresponding path program 1 times [2022-11-16 19:27:10,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:27:10,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970022553] [2022-11-16 19:27:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:27:10,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:27:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:27:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 19:27:11,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:27:11,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970022553] [2022-11-16 19:27:11,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970022553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:27:11,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:27:11,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 19:27:11,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822513037] [2022-11-16 19:27:11,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:27:11,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 19:27:11,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:27:11,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 19:27:11,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-16 19:27:11,036 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) [2022-11-16 19:27:11,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:27:11,680 INFO L93 Difference]: Finished difference Result 2954 states and 3639 transitions. [2022-11-16 19:27:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 19:27:11,680 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 [2022-11-16 19:27:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:27:11,694 INFO L225 Difference]: With dead ends: 2954 [2022-11-16 19:27:11,694 INFO L226 Difference]: Without dead ends: 2065 [2022-11-16 19:27:11,698 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 [2022-11-16 19:27:11,699 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 126 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 19:27:11,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 99 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 19:27:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2022-11-16 19:27:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2065. [2022-11-16 19:27:11,921 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) [2022-11-16 19:27:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2457 transitions. [2022-11-16 19:27:11,932 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2457 transitions. Word has length 42 [2022-11-16 19:27:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:27:11,933 INFO L495 AbstractCegarLoop]: Abstraction has 2065 states and 2457 transitions. [2022-11-16 19:27:11,933 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) [2022-11-16 19:27:11,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2457 transitions. [2022-11-16 19:27:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 19:27:11,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:27:11,937 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] [2022-11-16 19:27:11,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 19:27:11,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:27:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:27:11,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1984512892, now seen corresponding path program 1 times [2022-11-16 19:27:11,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:27:11,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811646319] [2022-11-16 19:27:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:27:11,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:27:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:27:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 19:27:12,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:27:12,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811646319] [2022-11-16 19:27:12,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811646319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:27:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523936134] [2022-11-16 19:27:12,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:27:12,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:27:12,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:27:12,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:27:12,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:27:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:27:12,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-16 19:27:12,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:27:12,409 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 19:27:12,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:27:12,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523936134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:27:12,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 19:27:12,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2022-11-16 19:27:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240021332] [2022-11-16 19:27:12,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:27:12,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 19:27:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:27:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 19:27:12,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-16 19:27:12,411 INFO L87 Difference]: Start difference. First operand 2065 states and 2457 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 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) [2022-11-16 19:27:13,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:27:13,107 INFO L93 Difference]: Finished difference Result 3108 states and 3741 transitions. [2022-11-16 19:27:13,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 19:27:13,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 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 [2022-11-16 19:27:13,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:27:13,113 INFO L225 Difference]: With dead ends: 3108 [2022-11-16 19:27:13,113 INFO L226 Difference]: Without dead ends: 1075 [2022-11-16 19:27:13,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-11-16 19:27:13,119 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 133 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:27:13,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 196 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 19:27:13,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-11-16 19:27:13,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 677. [2022-11-16 19:27:13,208 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) [2022-11-16 19:27:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 775 transitions. [2022-11-16 19:27:13,211 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 775 transitions. Word has length 67 [2022-11-16 19:27:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:27:13,212 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 775 transitions. [2022-11-16 19:27:13,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 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) [2022-11-16 19:27:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 775 transitions. [2022-11-16 19:27:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 19:27:13,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:27:13,214 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] [2022-11-16 19:27:13,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:27:13,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:27:13,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:27:13,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:27:13,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1296371734, now seen corresponding path program 2 times [2022-11-16 19:27:13,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:27:13,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343635038] [2022-11-16 19:27:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:27:13,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:27:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:27:13,564 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 19:27:13,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:27:13,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343635038] [2022-11-16 19:27:13,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343635038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:27:13,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994683833] [2022-11-16 19:27:13,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 19:27:13,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:27:13,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:27:13,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:27:13,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 19:27:13,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 19:27:13,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:27:13,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-16 19:27:13,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:27:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 19:27:13,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:27:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-16 19:27:14,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994683833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:27:14,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1088098071] [2022-11-16 19:27:14,330 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-16 19:27:14,331 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:27:14,331 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:27:14,331 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:27:14,331 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:27:21,405 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-16 19:27:21,437 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 299 for LOIs [2022-11-16 19:27:23,049 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 299 for LOIs [2022-11-16 19:27:24,387 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 299 for LOIs [2022-11-16 19:27:24,707 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 316 for LOIs [2022-11-16 19:27:24,765 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:28:08,368 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22645#(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 [2022-11-16 19:28:08,369 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:28:08,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:28:08,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 19 [2022-11-16 19:28:08,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916981101] [2022-11-16 19:28:08,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:28:08,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 19:28:08,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:28:08,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 19:28:08,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1810, Unknown=0, NotChecked=0, Total=2070 [2022-11-16 19:28:08,372 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) [2022-11-16 19:28:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:28:14,124 INFO L93 Difference]: Finished difference Result 2273 states and 2752 transitions. [2022-11-16 19:28:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-16 19:28:14,125 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 [2022-11-16 19:28:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:28:14,135 INFO L225 Difference]: With dead ends: 2273 [2022-11-16 19:28:14,135 INFO L226 Difference]: Without dead ends: 1598 [2022-11-16 19:28:14,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 177 SyntacticMatches, 10 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8409 ImplicationChecksByTransitivity, 47.2s TimeCoverageRelationStatistics Valid=1961, Invalid=19501, Unknown=0, NotChecked=0, Total=21462 [2022-11-16 19:28:14,144 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1381 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 2946 mSolverCounterSat, 985 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 3931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 2946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:28:14,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 859 Invalid, 3931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [985 Valid, 2946 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 19:28:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-11-16 19:28:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1434. [2022-11-16 19:28:14,373 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) [2022-11-16 19:28:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1644 transitions. [2022-11-16 19:28:14,384 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1644 transitions. Word has length 67 [2022-11-16 19:28:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:28:14,384 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 1644 transitions. [2022-11-16 19:28:14,385 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) [2022-11-16 19:28:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1644 transitions. [2022-11-16 19:28:14,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 19:28:14,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:28:14,388 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] [2022-11-16 19:28:14,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 19:28:14,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 19:28:14,594 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:28:14,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:28:14,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1809383737, now seen corresponding path program 1 times [2022-11-16 19:28:14,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:28:14,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644594825] [2022-11-16 19:28:14,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:28:14,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:28:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:28:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 19:28:15,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:28:15,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644594825] [2022-11-16 19:28:15,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644594825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:28:15,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024811374] [2022-11-16 19:28:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:28:15,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:28:15,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:28:15,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:28:15,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:28:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:28:15,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-16 19:28:15,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:28:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 19:28:15,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:28:15,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024811374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:28:15,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 19:28:15,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 23 [2022-11-16 19:28:15,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647188269] [2022-11-16 19:28:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:28:15,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 19:28:15,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:28:15,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 19:28:15,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2022-11-16 19:28:15,330 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) [2022-11-16 19:28:16,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:28:16,111 INFO L93 Difference]: Finished difference Result 2827 states and 3330 transitions. [2022-11-16 19:28:16,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 19:28:16,111 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 [2022-11-16 19:28:16,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:28:16,115 INFO L225 Difference]: With dead ends: 2827 [2022-11-16 19:28:16,115 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:28:16,125 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 [2022-11-16 19:28:16,125 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 115 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:28:16,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 717 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 19:28:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:28:16,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:28:16,126 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) [2022-11-16 19:28:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:28:16,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-11-16 19:28:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:28:16,127 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:28:16,128 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) [2022-11-16 19:28:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:28:16,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:28:16,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:28:16,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:28:16,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:28:16,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 19:28:39,320 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 720 726) no Hoare annotation was computed. [2022-11-16 19:28:39,321 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 720 726) the Hoare annotation is: true [2022-11-16 19:28:39,321 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)))) [2022-11-16 19:28:39,322 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 622 633) no Hoare annotation was computed. [2022-11-16 19:28:39,322 INFO L899 garLoopResultBuilder]: For program point L700-1(lines 699 718) no Hoare annotation was computed. [2022-11-16 19:28:39,322 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))))) [2022-11-16 19:28:39,322 INFO L899 garLoopResultBuilder]: For program point L758(lines 758 775) no Hoare annotation was computed. [2022-11-16 19:28:39,323 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2022-11-16 19:28:39,323 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))) [2022-11-16 19:28:39,324 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)))) [2022-11-16 19:28:39,324 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))))) [2022-11-16 19:28:39,324 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-16 19:28:39,325 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))))) [2022-11-16 19:28:39,325 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))))) [2022-11-16 19:28:39,326 INFO L899 garLoopResultBuilder]: For program point L760-1(line 760) no Hoare annotation was computed. [2022-11-16 19:28:39,326 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))))) [2022-11-16 19:28:39,326 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))) [2022-11-16 19:28:39,326 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))))) [2022-11-16 19:28:39,327 INFO L899 garLoopResultBuilder]: For program point L707-1(lines 707 713) no Hoare annotation was computed. [2022-11-16 19:28:39,327 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)))) [2022-11-16 19:28:39,327 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))) [2022-11-16 19:28:39,327 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 696 719) no Hoare annotation was computed. [2022-11-16 19:28:39,328 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2022-11-16 19:28:39,328 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 494 523) no Hoare annotation was computed. [2022-11-16 19:28:39,328 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 494 523) the Hoare annotation is: true [2022-11-16 19:28:39,328 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2022-11-16 19:28:39,328 INFO L902 garLoopResultBuilder]: At program point L508-1(lines 508 512) the Hoare annotation is: true [2022-11-16 19:28:39,329 INFO L902 garLoopResultBuilder]: At program point L504-2(lines 504 518) the Hoare annotation is: true [2022-11-16 19:28:39,329 INFO L902 garLoopResultBuilder]: At program point L500(line 500) the Hoare annotation is: true [2022-11-16 19:28:39,329 INFO L899 garLoopResultBuilder]: For program point L500-1(line 500) no Hoare annotation was computed. [2022-11-16 19:28:39,329 INFO L902 garLoopResultBuilder]: At program point L519(lines 494 523) the Hoare annotation is: true [2022-11-16 19:28:39,329 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-11-16 19:28:39,329 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 634 642) the Hoare annotation is: true [2022-11-16 19:28:39,329 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 634 642) no Hoare annotation was computed. [2022-11-16 19:28:39,330 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)))) [2022-11-16 19:28:39,330 INFO L899 garLoopResultBuilder]: For program point L907(lines 906 953) no Hoare annotation was computed. [2022-11-16 19:28:39,330 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))) [2022-11-16 19:28:39,330 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-16 19:28:39,330 INFO L902 garLoopResultBuilder]: At program point L957(lines 896 961) the Hoare annotation is: true [2022-11-16 19:28:39,330 INFO L899 garLoopResultBuilder]: For program point L916(lines 916 922) no Hoare annotation was computed. [2022-11-16 19:28:39,331 INFO L899 garLoopResultBuilder]: For program point L916-1(lines 916 922) no Hoare annotation was computed. [2022-11-16 19:28:39,331 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 19:28:39,331 INFO L895 garLoopResultBuilder]: At program point L954(lines 905 955) the Hoare annotation is: false [2022-11-16 19:28:39,331 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)) [2022-11-16 19:28:39,331 INFO L902 garLoopResultBuilder]: At program point L579-2(lines 579 586) the Hoare annotation is: true [2022-11-16 19:28:39,331 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 932) no Hoare annotation was computed. [2022-11-16 19:28:39,332 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)))) [2022-11-16 19:28:39,332 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)))) [2022-11-16 19:28:39,332 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))) [2022-11-16 19:28:39,332 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 610 621) no Hoare annotation was computed. [2022-11-16 19:28:39,333 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))) [2022-11-16 19:28:39,333 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)))))) [2022-11-16 19:28:39,333 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 744) no Hoare annotation was computed. [2022-11-16 19:28:39,333 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))) [2022-11-16 19:28:39,334 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))) [2022-11-16 19:28:39,334 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))) [2022-11-16 19:28:39,334 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))) [2022-11-16 19:28:39,334 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 728 752) no Hoare annotation was computed. [2022-11-16 19:28:39,335 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))) [2022-11-16 19:28:39,335 INFO L899 garLoopResultBuilder]: For program point L747-1(lines 728 752) no Hoare annotation was computed. [2022-11-16 19:28:39,335 INFO L902 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: true [2022-11-16 19:28:39,335 INFO L899 garLoopResultBuilder]: For program point L817-1(line 817) no Hoare annotation was computed. [2022-11-16 19:28:39,335 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 812 822) the Hoare annotation is: true [2022-11-16 19:28:39,335 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 812 822) no Hoare annotation was computed. [2022-11-16 19:28:39,339 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:28:39,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:28:39,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:28:39 BoogieIcfgContainer [2022-11-16 19:28:39,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:28:39,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:28:39,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:28:39,381 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:28:39,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:26:05" (3/4) ... [2022-11-16 19:28:39,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:28:39,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-16 19:28:39,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 19:28:39,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 19:28:39,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 19:28:39,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-16 19:28:39,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 19:28:39,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-16 19:28:39,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-16 19:28:39,399 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2022-11-16 19:28:39,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-16 19:28:39,401 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-16 19:28:39,401 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 19:28:39,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 19:28:39,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:28:39,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:28:39,428 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)) [2022-11-16 19:28:39,429 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))) [2022-11-16 19:28:39,429 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)) [2022-11-16 19:28:39,430 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)) [2022-11-16 19:28:39,430 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)) [2022-11-16 19:28:39,430 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)) [2022-11-16 19:28:39,431 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)) [2022-11-16 19:28:39,431 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)) [2022-11-16 19:28:39,432 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)) [2022-11-16 19:28:39,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:28:39,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:28:39,471 INFO L158 Benchmark]: Toolchain (without parser) took 155778.71ms. Allocated memory was 136.3MB in the beginning and 671.1MB in the end (delta: 534.8MB). Free memory was 101.0MB in the beginning and 609.1MB in the end (delta: -508.1MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,471 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory was 118.8MB in the beginning and 118.6MB in the end (delta: 207.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:28:39,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.50ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 105.2MB in the end (delta: -4.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.91ms. Allocated memory is still 136.3MB. Free memory was 105.2MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,473 INFO L158 Benchmark]: Boogie Preprocessor took 53.54ms. Allocated memory is still 136.3MB. Free memory was 102.6MB in the beginning and 101.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,474 INFO L158 Benchmark]: RCFGBuilder took 717.00ms. Allocated memory is still 136.3MB. Free memory was 100.9MB in the beginning and 69.1MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,475 INFO L158 Benchmark]: TraceAbstraction took 154303.67ms. Allocated memory was 136.3MB in the beginning and 671.1MB in the end (delta: 534.8MB). Free memory was 68.5MB in the beginning and 615.4MB in the end (delta: -546.8MB). Peak memory consumption was 379.6MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,475 INFO L158 Benchmark]: Witness Printer took 89.47ms. Allocated memory is still 671.1MB. Free memory was 615.4MB in the beginning and 609.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 19:28:39,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory was 118.8MB in the beginning and 118.6MB in the end (delta: 207.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.50ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 105.2MB in the end (delta: -4.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.91ms. Allocated memory is still 136.3MB. Free memory was 105.2MB in the beginning and 103.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.54ms. Allocated memory is still 136.3MB. Free memory was 102.6MB in the beginning and 101.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.00ms. Allocated memory is still 136.3MB. Free memory was 100.9MB in the beginning and 69.1MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 154303.67ms. Allocated memory was 136.3MB in the beginning and 671.1MB in the end (delta: 534.8MB). Free memory was 68.5MB in the beginning and 615.4MB in the end (delta: -546.8MB). Peak memory consumption was 379.6MB. Max. memory is 16.1GB. * Witness Printer took 89.47ms. Allocated memory is still 671.1MB. Free memory was 615.4MB in the beginning and 609.1MB in the end (delta: 6.3MB). 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: 154.2s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 23.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2845 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2807 mSDsluCounter, 4079 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3289 mSDsCounter, 1598 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6726 IncrementalHoareTripleChecker+Invalid, 8324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1598 mSolverCounterUnsat, 790 mSDtfsCounter, 6726 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 768 GetRequests, 414 SyntacticMatches, 15 SemanticMatches, 339 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13030 ImplicationChecksByTransitivity, 100.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2065occurred in iteration=8, InterpolantAutomatonStates: 256, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 708 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 4558 PreInvPairs, 5532 NumberOfFragments, 2899 HoareAnnotationTreeSize, 4558 FomulaSimplifications, 91883 FormulaSimplificationTreeSizeReduction, 4.3s HoareSimplificationTime, 38 FomulaSimplificationsInter, 167560 FormulaSimplificationTreeSizeReductionInter, 18.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 679 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 768 ConstructedInterpolants, 0 QuantifiedInterpolants, 2059 SizeOfPredicates, 55 NumberOfNonLiveVariables, 1673 ConjunctsInSsa, 130 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! [2022-11-16 19:28:39,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06f30ac-4db2-40a8-b51f-287eadaf8f22/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE