./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:05:11,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:05:11,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:05:11,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:05:11,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:05:11,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:05:11,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:05:11,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:05:11,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:05:11,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:05:11,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:05:11,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:05:11,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:05:11,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:05:11,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:05:11,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:05:11,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:05:11,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:05:11,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:05:11,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:05:11,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:05:11,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:05:11,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:05:11,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:05:11,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:05:11,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:05:11,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:05:11,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:05:11,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:05:11,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:05:11,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:05:11,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:05:11,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:05:11,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:05:11,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:05:11,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:05:11,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:05:11,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:05:11,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:05:11,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:05:11,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:05:11,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:05:12,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:05:12,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:05:12,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:05:12,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:05:12,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:05:12,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:05:12,041 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:05:12,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:05:12,042 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:05:12,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:05:12,044 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:05:12,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:05:12,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:05:12,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:05:12,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:05:12,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:05:12,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:05:12,046 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:05:12,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:05:12,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:05:12,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:05:12,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:05:12,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:05:12,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:05:12,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:05:12,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:05:12,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:05:12,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:05:12,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:05:12,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:05:12,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:05:12,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:05:12,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:05:12,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:05:12,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:05:12,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:05:12,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:05:12,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:05:12,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:05:12,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:05:12,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:05:12,057 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 [2021-11-23 02:05:12,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:05:12,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:05:12,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:05:12,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:05:12,459 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:05:12,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2021-11-23 02:05:12,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/data/7c54baf4e/0526cf686a944530b90834bbff6ace6a/FLAGdf8acc9f4 [2021-11-23 02:05:13,267 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:05:13,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2021-11-23 02:05:13,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/data/7c54baf4e/0526cf686a944530b90834bbff6ace6a/FLAGdf8acc9f4 [2021-11-23 02:05:13,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/data/7c54baf4e/0526cf686a944530b90834bbff6ace6a [2021-11-23 02:05:13,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:05:13,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:05:13,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:05:13,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:05:13,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:05:13,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:13" (1/1) ... [2021-11-23 02:05:13,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161766c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:13, skipping insertion in model container [2021-11-23 02:05:13,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:13" (1/1) ... [2021-11-23 02:05:13,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:05:13,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:05:13,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2021-11-23 02:05:14,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:05:14,080 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:05:14,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2021-11-23 02:05:14,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:05:14,255 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:05:14,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14 WrapperNode [2021-11-23 02:05:14,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:05:14,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:05:14,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:05:14,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:05:14,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,326 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 250 [2021-11-23 02:05:14,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:05:14,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:05:14,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:05:14,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:05:14,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:05:14,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:05:14,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:05:14,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:05:14,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (1/1) ... [2021-11-23 02:05:14,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:05:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:14,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:05:14,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:05:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:05:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:05:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:05:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:05:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:05:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:05:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:05:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 02:05:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 02:05:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:05:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:05:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:05:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:05:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:05:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:05:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:05:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:05:14,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:05:14,635 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:05:14,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:05:15,109 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:05:15,216 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:05:15,217 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:05:15,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:15 BoogieIcfgContainer [2021-11-23 02:05:15,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:05:15,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:05:15,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:05:15,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:05:15,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:13" (1/3) ... [2021-11-23 02:05:15,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d053cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:15, skipping insertion in model container [2021-11-23 02:05:15,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14" (2/3) ... [2021-11-23 02:05:15,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d053cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:15, skipping insertion in model container [2021-11-23 02:05:15,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:15" (3/3) ... [2021-11-23 02:05:15,230 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2021-11-23 02:05:15,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:05:15,237 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:05:15,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:05:15,305 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:05:15,305 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:05:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 02:05:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 02:05:15,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:15,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:15,337 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1323498237, now seen corresponding path program 1 times [2021-11-23 02:05:15,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:15,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377339840] [2021-11-23 02:05:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:15,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:05:15,626 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:15,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377339840] [2021-11-23 02:05:15,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377339840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:15,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:15,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:05:15,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475138547] [2021-11-23 02:05:15,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:15,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:05:15,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:15,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:05:15,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:05:15,703 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) 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) [2021-11-23 02:05:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:15,799 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2021-11-23 02:05:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:05:15,802 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 [2021-11-23 02:05:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:15,815 INFO L225 Difference]: With dead ends: 114 [2021-11-23 02:05:15,815 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:05:15,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:05:15,832 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:15,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:05:15,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:05:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:05:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 41 states have internal predecessors, (45), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 02:05:15,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-11-23 02:05:15,916 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 17 [2021-11-23 02:05:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:15,917 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-11-23 02:05:15,917 INFO L471 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) [2021-11-23 02:05:15,918 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-11-23 02:05:15,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:05:15,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:15,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:15,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:05:15,926 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:15,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:15,931 INFO L85 PathProgramCache]: Analyzing trace with hash -166525126, now seen corresponding path program 1 times [2021-11-23 02:05:15,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:15,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378446642] [2021-11-23 02:05:15,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:15,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:05:16,019 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:16,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378446642] [2021-11-23 02:05:16,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378446642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:16,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:16,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:05:16,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302537765] [2021-11-23 02:05:16,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:16,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:05:16,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:16,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:05:16,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:16,024 INFO L87 Difference]: Start difference. First operand 53 states and 68 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) [2021-11-23 02:05:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:16,077 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2021-11-23 02:05:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:05:16,078 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 [2021-11-23 02:05:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:16,080 INFO L225 Difference]: With dead ends: 83 [2021-11-23 02:05:16,080 INFO L226 Difference]: Without dead ends: 45 [2021-11-23 02:05:16,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:16,083 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:16,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:05:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-23 02:05:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-23 02:05:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 36 states have internal predecessors, (39), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-23 02:05:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2021-11-23 02:05:16,095 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 18 [2021-11-23 02:05:16,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:16,096 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-11-23 02:05:16,096 INFO L471 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) [2021-11-23 02:05:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2021-11-23 02:05:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:05:16,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:16,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:16,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:05:16,098 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:16,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:16,099 INFO L85 PathProgramCache]: Analyzing trace with hash -914581479, now seen corresponding path program 1 times [2021-11-23 02:05:16,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:16,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376601914] [2021-11-23 02:05:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:16,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:05:16,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:16,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376601914] [2021-11-23 02:05:16,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376601914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:16,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:16,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:05:16,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776122823] [2021-11-23 02:05:16,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:16,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:05:16,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:16,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:05:16,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:16,262 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-11-23 02:05:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:16,415 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2021-11-23 02:05:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:05:16,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2021-11-23 02:05:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:16,419 INFO L225 Difference]: With dead ends: 88 [2021-11-23 02:05:16,420 INFO L226 Difference]: Without dead ends: 45 [2021-11-23 02:05:16,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:16,422 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 47 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:16,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 55 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:05:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-23 02:05:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-23 02:05:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-23 02:05:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-11-23 02:05:16,434 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2021-11-23 02:05:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:16,434 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-11-23 02:05:16,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-11-23 02:05:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-11-23 02:05:16,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:05:16,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:16,437 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:16,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:05:16,437 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:16,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:16,438 INFO L85 PathProgramCache]: Analyzing trace with hash 712055272, now seen corresponding path program 1 times [2021-11-23 02:05:16,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:16,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919228837] [2021-11-23 02:05:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:16,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:05:16,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:16,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919228837] [2021-11-23 02:05:16,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919228837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:16,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:16,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:05:16,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703080509] [2021-11-23 02:05:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:16,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:05:16,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:16,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:05:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:05:16,539 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:05:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:16,670 INFO L93 Difference]: Finished difference Result 124 states and 159 transitions. [2021-11-23 02:05:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:05:16,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 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 27 [2021-11-23 02:05:16,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:16,673 INFO L225 Difference]: With dead ends: 124 [2021-11-23 02:05:16,673 INFO L226 Difference]: Without dead ends: 81 [2021-11-23 02:05:16,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:05:16,677 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 38 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:16,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 148 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:05:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-23 02:05:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2021-11-23 02:05:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 58 states have internal predecessors, (63), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2021-11-23 02:05:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2021-11-23 02:05:16,698 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 27 [2021-11-23 02:05:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:16,699 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 93 transitions. [2021-11-23 02:05:16,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:05:16,700 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 93 transitions. [2021-11-23 02:05:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 02:05:16,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:16,701 INFO L514 BasicCegarLoop]: 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] [2021-11-23 02:05:16,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:05:16,702 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:16,703 INFO L85 PathProgramCache]: Analyzing trace with hash -787214463, now seen corresponding path program 1 times [2021-11-23 02:05:16,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151232787] [2021-11-23 02:05:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:16,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:05:16,858 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:16,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151232787] [2021-11-23 02:05:16,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151232787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:16,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:05:16,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:05:16,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910549579] [2021-11-23 02:05:16,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:16,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:05:16,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:05:16,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:16,866 INFO L87 Difference]: Start difference. First operand 77 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:05:16,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:16,974 INFO L93 Difference]: Finished difference Result 134 states and 166 transitions. [2021-11-23 02:05:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:05:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-11-23 02:05:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:16,979 INFO L225 Difference]: With dead ends: 134 [2021-11-23 02:05:16,979 INFO L226 Difference]: Without dead ends: 132 [2021-11-23 02:05:16,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:05:16,981 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 33 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:16,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 93 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:05:16,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-23 02:05:17,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 124. [2021-11-23 02:05:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 92 states have internal predecessors, (101), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (32), 21 states have call predecessors, (32), 22 states have call successors, (32) [2021-11-23 02:05:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2021-11-23 02:05:17,011 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 28 [2021-11-23 02:05:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:17,012 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2021-11-23 02:05:17,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:05:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2021-11-23 02:05:17,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 02:05:17,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:17,017 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:17,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:05:17,017 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:17,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:17,018 INFO L85 PathProgramCache]: Analyzing trace with hash -691239881, now seen corresponding path program 1 times [2021-11-23 02:05:17,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:17,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133123211] [2021-11-23 02:05:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:17,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:05:17,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:17,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133123211] [2021-11-23 02:05:17,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133123211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:05:17,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139277060] [2021-11-23 02:05:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:17,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:17,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:17,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:05:17,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:05:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:17,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:05:17,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:05:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:05:17,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:05:17,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139277060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:17,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:05:17,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-23 02:05:17,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687619986] [2021-11-23 02:05:17,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:17,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:05:17,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:17,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:05:17,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:05:17,601 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-23 02:05:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:17,686 INFO L93 Difference]: Finished difference Result 237 states and 305 transitions. [2021-11-23 02:05:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:05:17,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 55 [2021-11-23 02:05:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:17,694 INFO L225 Difference]: With dead ends: 237 [2021-11-23 02:05:17,694 INFO L226 Difference]: Without dead ends: 115 [2021-11-23 02:05:17,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:05:17,702 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 24 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:17,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 85 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:05:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-23 02:05:17,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-23 02:05:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 85 states have internal predecessors, (91), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (27), 20 states have call predecessors, (27), 20 states have call successors, (27) [2021-11-23 02:05:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 138 transitions. [2021-11-23 02:05:17,750 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 138 transitions. Word has length 55 [2021-11-23 02:05:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:17,753 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 138 transitions. [2021-11-23 02:05:17,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-23 02:05:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 138 transitions. [2021-11-23 02:05:17,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 02:05:17,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:17,760 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-23 02:05:17,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:05:17,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 02:05:17,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:17,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:17,969 INFO L85 PathProgramCache]: Analyzing trace with hash -755845242, now seen corresponding path program 1 times [2021-11-23 02:05:17,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:17,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196081131] [2021-11-23 02:05:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:17,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:05:18,141 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:18,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196081131] [2021-11-23 02:05:18,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196081131] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:05:18,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223379096] [2021-11-23 02:05:18,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:18,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:18,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:18,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:05:18,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:05:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:18,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 02:05:18,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:05:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:05:18,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:05:18,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223379096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:05:18,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:05:18,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2021-11-23 02:05:18,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590876294] [2021-11-23 02:05:18,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:18,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:05:18,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:18,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:05:18,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:05:18,769 INFO L87 Difference]: Start difference. First operand 115 states and 138 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-23 02:05:19,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:19,288 INFO L93 Difference]: Finished difference Result 300 states and 364 transitions. [2021-11-23 02:05:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:05:19,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2021-11-23 02:05:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:19,294 INFO L225 Difference]: With dead ends: 300 [2021-11-23 02:05:19,294 INFO L226 Difference]: Without dead ends: 187 [2021-11-23 02:05:19,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:05:19,298 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 121 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:19,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 177 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:05:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-23 02:05:19,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 157. [2021-11-23 02:05:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 116 states have internal predecessors, (126), 25 states have call successors, (25), 23 states have call predecessors, (25), 25 states have return successors, (32), 25 states have call predecessors, (32), 25 states have call successors, (32) [2021-11-23 02:05:19,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 183 transitions. [2021-11-23 02:05:19,348 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 183 transitions. Word has length 62 [2021-11-23 02:05:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:19,349 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 183 transitions. [2021-11-23 02:05:19,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-23 02:05:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 183 transitions. [2021-11-23 02:05:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 02:05:19,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:19,353 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-23 02:05:19,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 02:05:19,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:19,564 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:19,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash 213876582, now seen corresponding path program 1 times [2021-11-23 02:05:19,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:19,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505220616] [2021-11-23 02:05:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:19,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:05:19,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:19,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505220616] [2021-11-23 02:05:19,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505220616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:05:19,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508219226] [2021-11-23 02:05:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:19,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:19,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:19,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:05:19,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:05:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:19,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:05:19,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:05:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-23 02:05:20,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:05:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 02:05:20,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508219226] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:05:20,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:05:20,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 5] total 11 [2021-11-23 02:05:20,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333289321] [2021-11-23 02:05:20,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:05:20,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:05:20,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:20,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:05:20,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:05:20,642 INFO L87 Difference]: Start difference. First operand 157 states and 183 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 02:05:20,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:20,844 INFO L93 Difference]: Finished difference Result 427 states and 504 transitions. [2021-11-23 02:05:20,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:05:20,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2021-11-23 02:05:20,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:20,850 INFO L225 Difference]: With dead ends: 427 [2021-11-23 02:05:20,850 INFO L226 Difference]: Without dead ends: 272 [2021-11-23 02:05:20,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-23 02:05:20,854 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 28 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:20,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 212 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:05:20,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-23 02:05:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 255. [2021-11-23 02:05:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 174 states have (on average 1.160919540229885) internal successors, (202), 187 states have internal predecessors, (202), 40 states have call successors, (40), 37 states have call predecessors, (40), 40 states have return successors, (50), 40 states have call predecessors, (50), 40 states have call successors, (50) [2021-11-23 02:05:20,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 292 transitions. [2021-11-23 02:05:20,909 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 292 transitions. Word has length 65 [2021-11-23 02:05:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:20,910 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 292 transitions. [2021-11-23 02:05:20,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-23 02:05:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 292 transitions. [2021-11-23 02:05:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 02:05:20,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:20,916 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:20,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:05:21,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:21,138 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:21,138 INFO L85 PathProgramCache]: Analyzing trace with hash -304665198, now seen corresponding path program 1 times [2021-11-23 02:05:21,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:21,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217090765] [2021-11-23 02:05:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:21,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 02:05:21,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217090765] [2021-11-23 02:05:21,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217090765] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:05:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616884536] [2021-11-23 02:05:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:21,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:21,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:21,337 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:05:21,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:05:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:05:21,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 02:05:21,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:05:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:05:21,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:05:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 02:05:22,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616884536] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:05:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [332940732] [2021-11-23 02:05:22,201 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2021-11-23 02:05:22,201 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:05:22,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:05:22,214 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:05:22,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:05:31,081 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 49 for LOIs [2021-11-23 02:05:31,092 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 46 for LOIs [2021-11-23 02:05:31,560 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 41 for LOIs [2021-11-23 02:05:31,718 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 40 for LOIs [2021-11-23 02:05:31,728 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 43 for LOIs [2021-11-23 02:05:31,741 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 42 for LOIs [2021-11-23 02:05:31,750 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:05:38,271 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4991#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= 0 (+ |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 2147483647) (= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (= 1 ~systemActive~0) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (not (= ~methAndRunningLastTime~0 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:05:38,272 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:05:38,272 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:05:38,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 24 [2021-11-23 02:05:38,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609111942] [2021-11-23 02:05:38,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:05:38,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 02:05:38,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:38,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 02:05:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=2620, Unknown=0, NotChecked=0, Total=2862 [2021-11-23 02:05:38,276 INFO L87 Difference]: Start difference. First operand 255 states and 292 transitions. Second operand has 24 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 7 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (23), 11 states have call predecessors, (23), 7 states have call successors, (23) [2021-11-23 02:05:39,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:39,472 INFO L93 Difference]: Finished difference Result 507 states and 599 transitions. [2021-11-23 02:05:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 02:05:39,473 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 7 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (23), 11 states have call predecessors, (23), 7 states have call successors, (23) Word has length 68 [2021-11-23 02:05:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:39,474 INFO L225 Difference]: With dead ends: 507 [2021-11-23 02:05:39,474 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:05:39,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 156 SyntacticMatches, 11 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1733 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=415, Invalid=4277, Unknown=0, NotChecked=0, Total=4692 [2021-11-23 02:05:39,480 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 277 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:05:39,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 270 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 02:05:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:05:39,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:05:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:05:39,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:05:39,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2021-11-23 02:05:39,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:39,482 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:05:39,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 7 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (23), 11 states have call predecessors, (23), 7 states have call successors, (23) [2021-11-23 02:05:39,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:05:39,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:05:39,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:05:39,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:05:39,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:39,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:05:44,483 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 173 179) no Hoare annotation was computed. [2021-11-23 02:05:44,483 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 173 179) the Hoare annotation is: true [2021-11-23 02:05:44,484 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 526 537) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 1)) (.cse2 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse6 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse7 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse5 (not (<= 1 ~pumpRunning~0))) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse2 .cse3) (or .cse6 .cse0 .cse7 .cse3 .cse4) (or .cse6 .cse7 .cse5 .cse3 .cse4))) [2021-11-23 02:05:44,484 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 526 537) no Hoare annotation was computed. [2021-11-23 02:05:44,484 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2021-11-23 02:05:44,484 INFO L861 garLoopResultBuilder]: At program point L417-1(lines 417 421) the Hoare annotation is: true [2021-11-23 02:05:44,484 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 403 432) no Hoare annotation was computed. [2021-11-23 02:05:44,484 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 403 432) the Hoare annotation is: true [2021-11-23 02:05:44,484 INFO L861 garLoopResultBuilder]: At program point L413-2(lines 413 427) the Hoare annotation is: true [2021-11-23 02:05:44,485 INFO L861 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2021-11-23 02:05:44,485 INFO L858 garLoopResultBuilder]: For program point L409-1(line 409) no Hoare annotation was computed. [2021-11-23 02:05:44,485 INFO L861 garLoopResultBuilder]: At program point L428(lines 403 432) the Hoare annotation is: true [2021-11-23 02:05:44,485 INFO L858 garLoopResultBuilder]: For program point L424(line 424) no Hoare annotation was computed. [2021-11-23 02:05:44,485 INFO L854 garLoopResultBuilder]: At program point L221(line 221) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (and (<= 1 ~pumpRunning~0) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (<= ~waterLevel~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|))))) (or .cse0 .cse3 .cse2) (or .cse4 (= ~methAndRunningLastTime~0 0) .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse2) (or .cse5 .cse4 .cse3 .cse2) (or .cse5 .cse4 .cse1 .cse2))) [2021-11-23 02:05:44,485 INFO L854 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6 .cse2) (or .cse3 .cse4 .cse6 .cse1 .cse2) (or .cse0 .cse5 .cse2))) [2021-11-23 02:05:44,486 INFO L854 garLoopResultBuilder]: At program point L226-1(lines 207 231) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse14 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse15 (= ~methaneLevelCritical~0 0)) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse6 .cse14) (and (<= ~waterLevel~0 0) .cse14))) (.cse8 (not .cse5)) (.cse13 (<= 1 ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 0))) (let ((.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse11 (and .cse13 .cse1 (<= 2 ~waterLevel~0) .cse14)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse12 (and .cse6 (<= ~waterLevel~0 1) .cse7 .cse8)) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (and .cse6 (not (= |timeShift_processEnvironment_~tmp~2#1| 0)) .cse15 .cse7 .cse8)) (.cse4 (not .cse15))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse2 (and .cse6 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse7 .cse8) .cse9 .cse5) (or .cse10 .cse11 .cse0 .cse9 .cse5 .cse12) (or .cse10 .cse11 .cse0 .cse4 .cse5 .cse12) (or .cse2 .cse3 .cse4 (and .cse13 .cse14) .cse5))))) [2021-11-23 02:05:44,486 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 160 166) no Hoare annotation was computed. [2021-11-23 02:05:44,486 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2021-11-23 02:05:44,487 INFO L854 garLoopResultBuilder]: At program point L78(lines 78 95) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse16 (= ~methaneLevelCritical~0 0)) (.cse13 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0)) (.cse2 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse1 .cse10) (and (<= ~waterLevel~0 0) .cse10))) (.cse3 (not .cse5))) (let ((.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (<= ~waterLevel~0 1)) (.cse9 (<= 2 ~waterLevel~0)) (.cse11 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse8 (= ~methAndRunningLastTime~0 0)) (.cse14 (and .cse1 (not (= |timeShift_processEnvironment_~tmp~2#1| 0)) .cse16 .cse13 .cse2 .cse3)) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse15 (not .cse16)) (.cse7 (<= 1 ~pumpRunning~0))) (and (or .cse0 (and .cse1 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse2 .cse3) .cse4 .cse5) (or .cse6 (and .cse7 .cse8 .cse9 .cse10) .cse11 .cse4 .cse5 (and .cse1 .cse12 .cse2 .cse3)) (or .cse6 .cse11 (and .cse1 .cse12 .cse13 .cse2 .cse3) (and .cse7 .cse8 .cse9 .cse13 .cse10) (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse5) (or .cse14 .cse11 .cse8 .cse0 .cse15 .cse5) (or .cse14 .cse0 .cse15 (and .cse7 .cse13 .cse10) .cse5))))) [2021-11-23 02:05:44,487 INFO L854 garLoopResultBuilder]: At program point L78-1(lines 70 98) the Hoare annotation is: (let ((.cse12 (= 0 ~systemActive~0)) (.cse8 (= ~pumpRunning~0 0)) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse9 (<= ~waterLevel~0 1)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse2 (<= 1 ~pumpRunning~0)) (.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse10 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse8 .cse6) (and (<= ~waterLevel~0 0) .cse6))) (.cse11 (not .cse12)) (.cse14 (not (<= 1 |old(~pumpRunning~0)|))) (.cse13 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 (and .cse8 .cse3 .cse9 .cse5 .cse10 .cse11) .cse12) (or .cse0 .cse1 (and .cse2 .cse4 .cse6) (and .cse8 .cse3 .cse9 .cse10 .cse11) .cse13 .cse12) (or .cse14 (and .cse8 (not (= |timeShift_processEnvironment_~tmp~2#1| 0)) .cse3 .cse5 .cse10 .cse11) .cse7 .cse12 (and .cse2 .cse3 .cse5 .cse6)) (or (and .cse8 .cse3 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse10 .cse11) .cse14 .cse13 .cse12)))) [2021-11-23 02:05:44,487 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 152 171) no Hoare annotation was computed. [2021-11-23 02:05:44,488 INFO L854 garLoopResultBuilder]: At program point L215(lines 215 223) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse5 (let ((.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) .cse9) (and (<= ~waterLevel~0 0) .cse9)))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse3) (or (and .cse4 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse5) .cse2 .cse6 .cse3) (or .cse0 .cse1 .cse2 .cse6 .cse3) (or (and .cse4 .cse5) .cse2 .cse7 .cse3) (or .cse8 .cse0 .cse6 .cse3) (or .cse8 .cse0 .cse7 .cse3))) [2021-11-23 02:05:44,488 INFO L854 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse5 .cse1 .cse2) (or .cse4 .cse5 .cse3 .cse2))) [2021-11-23 02:05:44,488 INFO L858 garLoopResultBuilder]: For program point L211(lines 211 228) no Hoare annotation was computed. [2021-11-23 02:05:44,488 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2021-11-23 02:05:44,489 INFO L854 garLoopResultBuilder]: At program point L253(line 253) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (and (<= 1 ~pumpRunning~0) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (<= ~waterLevel~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|))))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse2) (or .cse4 .cse5 .cse0 .cse6 .cse2) (or .cse0 .cse6 .cse2 .cse3) (or .cse7 .cse4 .cse6 .cse2) (or .cse7 .cse4 .cse1 .cse2))) [2021-11-23 02:05:44,489 INFO L854 garLoopResultBuilder]: At program point L253-1(line 253) the Hoare annotation is: (let ((.cse6 (= ~methAndRunningLastTime~0 0)) (.cse1 (<= 1 ~pumpRunning~0)) (.cse2 (let ((.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (= ~pumpRunning~0 0) .cse9) (and (<= ~waterLevel~0 0) .cse9)))) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |timeShift_isMethaneAlarm_#t~ret9#1| 1) .cse2) .cse3 .cse4) (or .cse5 .cse6 .cse0 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse4) (or .cse5 .cse6 .cse0 .cse3 .cse4) (or (and .cse1 .cse2) .cse0 .cse7 .cse4) (or .cse8 .cse5 .cse3 .cse4) (or .cse8 .cse5 .cse7 .cse4))) [2021-11-23 02:05:44,489 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 149 172) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse9 (<= 1 ~pumpRunning~0)) (.cse11 (= ~methAndRunningLastTime~0 0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and (= ~pumpRunning~0 0) .cse11 .cse10)) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (and .cse9 .cse11 .cse10)) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse3 (and .cse9 .cse10 (not .cse2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 (not (<= ~methaneLevelCritical~0 0)) (not (<= 0 ~methaneLevelCritical~0)) .cse2) (or .cse6 .cse4 .cse1 .cse7 .cse2) (or .cse6 .cse4 .cse7 .cse8 .cse2) (or .cse4 .cse0 .cse5 .cse8 .cse2) (or .cse0 .cse8 .cse2 .cse3)))) [2021-11-23 02:05:44,490 INFO L854 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse14 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse15 (= ~methaneLevelCritical~0 0)) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and .cse6 .cse14) (and (<= ~waterLevel~0 0) .cse14))) (.cse8 (not .cse5)) (.cse13 (<= 1 ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 0))) (let ((.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse11 (and .cse13 .cse1 (<= 2 ~waterLevel~0) .cse14)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse12 (and .cse6 (<= ~waterLevel~0 1) .cse7 .cse8)) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (and .cse6 (not (= |timeShift_processEnvironment_~tmp~2#1| 0)) .cse15 .cse7 .cse8)) (.cse4 (not .cse15))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse2 (and .cse6 (= |timeShift_processEnvironment_~tmp~2#1| 1) .cse7 .cse8) .cse9 .cse5) (or .cse10 .cse11 .cse0 .cse9 .cse5 .cse12) (or .cse10 .cse11 .cse0 .cse4 .cse5 .cse12) (or .cse2 .cse3 .cse4 (and .cse13 .cse14) .cse5))))) [2021-11-23 02:05:44,490 INFO L858 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2021-11-23 02:05:44,490 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 149 172) no Hoare annotation was computed. [2021-11-23 02:05:44,490 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-23 02:05:44,491 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 538 546) the Hoare annotation is: true [2021-11-23 02:05:44,491 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 538 546) no Hoare annotation was computed. [2021-11-23 02:05:44,491 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:05:44,491 INFO L854 garLoopResultBuilder]: At program point L383-2(lines 375 388) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse5 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse6 .cse3 .cse4 .cse5) (and .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 .cse3 .cse4 .cse5))) [2021-11-23 02:05:44,491 INFO L858 garLoopResultBuilder]: For program point L346(lines 345 392) no Hoare annotation was computed. [2021-11-23 02:05:44,492 INFO L854 garLoopResultBuilder]: At program point L367(line 367) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse5 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse7 .cse3 .cse4 .cse5))) [2021-11-23 02:05:44,492 INFO L861 garLoopResultBuilder]: At program point L396(lines 335 400) the Hoare annotation is: true [2021-11-23 02:05:44,492 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 361) no Hoare annotation was computed. [2021-11-23 02:05:44,492 INFO L858 garLoopResultBuilder]: For program point L355-1(lines 355 361) no Hoare annotation was computed. [2021-11-23 02:05:44,492 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:05:44,493 INFO L854 garLoopResultBuilder]: At program point L393(lines 344 394) the Hoare annotation is: false [2021-11-23 02:05:44,493 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 371) no Hoare annotation was computed. [2021-11-23 02:05:44,493 INFO L854 garLoopResultBuilder]: At program point L365-1(lines 365 371) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse5 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse6 .cse3 .cse4 .cse5) (and .cse7 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse6 .cse3 .cse4 .cse5))) [2021-11-23 02:05:44,493 INFO L854 garLoopResultBuilder]: At program point L390(lines 345 392) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse5 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse7 .cse3 .cse4 .cse5))) [2021-11-23 02:05:44,494 INFO L854 garLoopResultBuilder]: At program point L485(lines 485 492) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)) [2021-11-23 02:05:44,494 INFO L854 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse5 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse7 .cse3 .cse4 .cse5))) [2021-11-23 02:05:44,494 INFO L861 garLoopResultBuilder]: At program point L485-2(lines 485 492) the Hoare annotation is: true [2021-11-23 02:05:44,494 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 181 205) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (<= 1 ~pumpRunning~0) (not (<= 1 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2021-11-23 02:05:44,495 INFO L854 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse1 .cse3) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse2 .cse3 .cse4))) [2021-11-23 02:05:44,495 INFO L854 garLoopResultBuilder]: At program point L189(lines 189 197) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) (or (and (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 1)) (and (< ~waterLevel~0 2) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))))) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse3 .cse4))) [2021-11-23 02:05:44,495 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 181 205) no Hoare annotation was computed. [2021-11-23 02:05:44,495 INFO L854 garLoopResultBuilder]: At program point L185(lines 185 202) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (<= 1 ~pumpRunning~0) (not (<= 1 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse4) (or .cse2 .cse3 .cse0 .cse1 .cse4))) [2021-11-23 02:05:44,496 INFO L854 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (<= 1 ~pumpRunning~0) (not (<= 1 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse2 .cse0 .cse1 .cse3) (or .cse2 (not (= ~methaneLevelCritical~0 1)) .cse1 .cse3))) [2021-11-23 02:05:44,496 INFO L858 garLoopResultBuilder]: For program point L200-1(lines 181 205) no Hoare annotation was computed. [2021-11-23 02:05:44,496 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 514 525) no Hoare annotation was computed. [2021-11-23 02:05:44,496 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 514 525) the Hoare annotation is: (let ((.cse4 (not (= ~pumpRunning~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (<= ~methaneLevelCritical~0 0))) (.cse6 (not (<= 0 ~methaneLevelCritical~0))) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= 0 ~systemActive~0)) (.cse7 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse2 .cse3 .cse7) (or .cse4 .cse1 .cse2 .cse3 .cse7) (or .cse0 .cse5 .cse6 .cse2 .cse3 .cse7))) [2021-11-23 02:05:44,500 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:44,502 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:05:44,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:05:44 BoogieIcfgContainer [2021-11-23 02:05:44,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:05:44,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:05:44,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:05:44,554 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:05:44,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:15" (3/4) ... [2021-11-23 02:05:44,558 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:05:44,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:05:44,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:05:44,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:05:44,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:05:44,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 02:05:44,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:05:44,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:05:44,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2021-11-23 02:05:44,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 02:05:44,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 02:05:44,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:05:44,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:05:44,583 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:05:44,584 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:05:44,613 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || ((1 <= pumpRunning && waterLevel <= \old(waterLevel)) && !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 1)) || 0 == systemActive) || ((1 <= pumpRunning && waterLevel <= \old(waterLevel)) && !(0 == systemActive))) [2021-11-23 02:05:44,615 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || ((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(1 <= \old(pumpRunning)) || (((pumpRunning == 0 && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive) || (((pumpRunning == 0 && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)))) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((pumpRunning == 0 && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)))) && ((((!(1 <= \old(pumpRunning)) || ((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || (1 <= pumpRunning && waterLevel <= \old(waterLevel))) || 0 == systemActive) [2021-11-23 02:05:44,615 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 1)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2021-11-23 02:05:44,616 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 <= \old(pumpRunning)) || (((pumpRunning == 0 && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive) || (((pumpRunning == 0 && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((((((((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((((((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((1 <= pumpRunning && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel))) || 0 == systemActive) [2021-11-23 02:05:44,616 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 <= \old(pumpRunning)) || ((1 <= pumpRunning && aux-isMethaneLevelCritical()-aux == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel))))) || !(methaneLevelCritical == 1)) || 0 == systemActive) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((1 <= pumpRunning && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2021-11-23 02:05:44,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 0)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= 1) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((1 <= pumpRunning && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(1 <= \old(pumpRunning)) || (((((pumpRunning == 0 && !(tmp == 0)) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel)))) && (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive) [2021-11-23 02:05:44,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && (((((1 <= pumpRunning && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((1 <= pumpRunning && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2021-11-23 02:05:44,618 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 1)) || 0 == systemActive) && ((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2021-11-23 02:05:44,618 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && ((2 <= waterLevel && tmp == 1) || (waterLevel < 2 && tmp == 0)))) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && ((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && ((2 <= waterLevel && tmp == 1) || (waterLevel < 2 && tmp == 0)))) || !(methaneLevelCritical == 1)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2021-11-23 02:05:44,653 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:05:44,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:05:44,654 INFO L158 Benchmark]: Toolchain (without parser) took 31159.03ms. Allocated memory was 98.6MB in the beginning and 337.6MB in the end (delta: 239.1MB). Free memory was 63.3MB in the beginning and 119.6MB in the end (delta: -56.3MB). Peak memory consumption was 181.0MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,654 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:05:44,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 759.78ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.3MB in the beginning and 83.6MB in the end (delta: -20.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,655 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.02ms. Allocated memory is still 119.5MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,656 INFO L158 Benchmark]: Boogie Preprocessor took 37.64ms. Allocated memory is still 119.5MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,656 INFO L158 Benchmark]: RCFGBuilder took 854.89ms. Allocated memory is still 119.5MB. Free memory was 79.5MB in the beginning and 58.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,657 INFO L158 Benchmark]: TraceAbstraction took 29330.66ms. Allocated memory was 119.5MB in the beginning and 337.6MB in the end (delta: 218.1MB). Free memory was 58.1MB in the beginning and 125.9MB in the end (delta: -67.7MB). Peak memory consumption was 172.5MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,657 INFO L158 Benchmark]: Witness Printer took 99.37ms. Allocated memory is still 337.6MB. Free memory was 125.9MB in the beginning and 119.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:05:44,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 759.78ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.3MB in the beginning and 83.6MB in the end (delta: -20.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.02ms. Allocated memory is still 119.5MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.64ms. Allocated memory is still 119.5MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 854.89ms. Allocated memory is still 119.5MB. Free memory was 79.5MB in the beginning and 58.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 29330.66ms. Allocated memory was 119.5MB in the beginning and 337.6MB in the end (delta: 218.1MB). Free memory was 58.1MB in the beginning and 125.9MB in the end (delta: -67.7MB). Peak memory consumption was 172.5MB. Max. memory is 16.1GB. * Witness Printer took 99.37ms. Allocated memory is still 337.6MB. Free memory was 125.9MB in the beginning and 119.6MB 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: 54]: 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 8 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.2s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 575 mSDsluCounter, 1174 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 902 mSDsCounter, 257 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1592 IncrementalHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 257 mSolverCounterUnsat, 465 mSDtfsCounter, 1592 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 529 GetRequests, 409 SyntacticMatches, 14 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1797 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=8, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 59 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 657 PreInvPairs, 778 NumberOfFragments, 2745 HoareAnnotationTreeSize, 657 FomulaSimplifications, 588 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 35 FomulaSimplificationsInter, 10793 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 610 NumberOfCodeBlocks, 610 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 728 ConstructedInterpolants, 0 QuantifiedInterpolants, 2073 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1735 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 245/268 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: 344]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 413]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 1)) || 0 == systemActive) && ((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: ((((((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || ((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(1 <= \old(pumpRunning)) || (((pumpRunning == 0 && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive) || (((pumpRunning == 0 && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)))) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((pumpRunning == 0 && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)))) && ((((!(1 <= \old(pumpRunning)) || ((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || (1 <= pumpRunning && waterLevel <= \old(waterLevel))) || 0 == systemActive) - InvariantResult [Line: 403]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive) || ((1 <= pumpRunning && waterLevel <= \old(waterLevel)) && !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 1)) || 0 == systemActive) || ((1 <= pumpRunning && waterLevel <= \old(waterLevel)) && !(0 == systemActive))) - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive)) || ((((1 <= pumpRunning && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive)) || ((((1 <= pumpRunning && methaneLevelCritical == 0) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive) - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive)) || ((((1 <= pumpRunning && methaneLevelCritical == 1) && splverifierCounter == 0) && tmp == 1) && tmp == systemActive) - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && tmp == 1) && tmp == systemActive - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: (((((((!(1 <= \old(pumpRunning)) || ((1 <= pumpRunning && aux-isMethaneLevelCritical()-aux == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel))))) || !(methaneLevelCritical == 1)) || 0 == systemActive) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((1 <= pumpRunning && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: ((((((!(1 <= \old(pumpRunning)) || (((pumpRunning == 0 && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive) || (((pumpRunning == 0 && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive)) && ((((((((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((((((((pumpRunning == 0 && !(tmp == 0)) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((1 <= pumpRunning && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel))) || 0 == systemActive) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 0)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= 1) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((1 <= pumpRunning && 2 <= waterLevel) && waterLevel <= \old(waterLevel))) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(1 <= \old(pumpRunning)) || (((((pumpRunning == 0 && !(tmp == 0)) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || 0 == systemActive) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && waterLevel <= \old(waterLevel)))) && (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && !(0 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 1)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && ((2 <= waterLevel && tmp == 1) || (waterLevel < 2 && tmp == 0)))) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && ((!(1 <= \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && ((2 <= waterLevel && tmp == 1) || (waterLevel < 2 && tmp == 0)))) || !(methaneLevelCritical == 1)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: (((((((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || 0 == systemActive) && (((((1 <= pumpRunning && tmp == 1) && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((1 <= pumpRunning && ((waterLevel + 1 <= \old(waterLevel) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) RESULT: Ultimate proved your program to be correct! [2021-11-23 02:05:44,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f4b5faf-1d4b-4838-a99d-a7833831a0bf/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE