./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.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_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/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_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/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_c7ed6bad-4181-438b-94ab-7289e1f01247/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 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:39:16,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:39:16,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:39:16,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:39:16,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:39:16,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:39:16,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:39:16,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:39:16,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:39:16,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:39:16,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:39:16,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:39:16,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:39:16,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:39:16,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:39:16,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:39:16,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:39:16,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:39:16,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:39:16,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:39:16,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:39:16,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:39:16,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:39:16,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:39:16,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:39:16,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:39:16,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:39:16,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:39:16,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:39:16,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:39:16,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:39:16,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:39:16,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:39:16,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:39:16,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:39:16,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:39:16,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:39:16,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:39:16,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:39:16,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:39:16,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:39:16,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:39:17,053 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:39:17,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:39:17,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:39:17,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:39:17,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:39:17,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:39:17,056 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:39:17,056 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:39:17,056 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:39:17,062 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:39:17,063 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:39:17,064 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:39:17,064 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:39:17,064 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:39:17,065 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:39:17,065 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:39:17,065 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:39:17,065 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:39:17,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:39:17,067 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:39:17,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:39:17,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:39:17,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:39:17,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:39:17,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:39:17,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:39:17,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:39:17,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:39:17,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:39:17,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:39:17,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:39:17,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:39:17,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:17,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:39:17,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:39:17,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:39:17,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:39:17,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:39:17,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:39:17,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:39:17,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:39:17,075 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_c7ed6bad-4181-438b-94ab-7289e1f01247/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cfe95aaca007f6467395901a9efc89e5ad27f0fc32ae7ae8a1fe4e27a1f35c1 [2021-11-23 02:39:17,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:39:17,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:39:17,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:39:17,398 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:39:17,399 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:39:17,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2021-11-23 02:39:17,490 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/data/d217aeda5/a163da8be0ea4d0f9ae6972435dd4733/FLAGb2e978306 [2021-11-23 02:39:18,186 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:39:18,187 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2021-11-23 02:39:18,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/data/d217aeda5/a163da8be0ea4d0f9ae6972435dd4733/FLAGb2e978306 [2021-11-23 02:39:18,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/data/d217aeda5/a163da8be0ea4d0f9ae6972435dd4733 [2021-11-23 02:39:18,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:39:18,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:39:18,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:18,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:39:18,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:39:18,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:18" (1/1) ... [2021-11-23 02:39:18,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d1d390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:18, skipping insertion in model container [2021-11-23 02:39:18,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:18" (1/1) ... [2021-11-23 02:39:18,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:39:18,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:39:18,750 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_c7ed6bad-4181-438b-94ab-7289e1f01247/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1605,1618] [2021-11-23 02:39:18,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:18,939 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:39:18,956 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_c7ed6bad-4181-438b-94ab-7289e1f01247/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1605,1618] [2021-11-23 02:39:19,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:19,060 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:39:19,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19 WrapperNode [2021-11-23 02:39:19,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:19,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:19,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:39:19,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:39:19,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,160 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 265 [2021-11-23 02:39:19,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:19,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:39:19,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:39:19,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:39:19,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:39:19,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:39:19,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:39:19,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:39:19,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (1/1) ... [2021-11-23 02:39:19,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:19,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:19,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:39:19,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:39:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:39:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:39:19,309 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:39:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:39:19,310 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:39:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:39:19,310 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:39:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:39:19,311 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:39:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:39:19,311 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:39:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:39:19,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:39:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:39:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:39:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:39:19,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:39:19,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:39:19,397 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:39:19,399 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:39:19,896 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:39:20,050 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:39:20,057 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:39:20,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:20 BoogieIcfgContainer [2021-11-23 02:39:20,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:39:20,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:39:20,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:39:20,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:39:20,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:18" (1/3) ... [2021-11-23 02:39:20,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e72ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:20, skipping insertion in model container [2021-11-23 02:39:20,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:19" (2/3) ... [2021-11-23 02:39:20,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e72ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:20, skipping insertion in model container [2021-11-23 02:39:20,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:20" (3/3) ... [2021-11-23 02:39:20,070 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2021-11-23 02:39:20,076 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:39:20,076 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:39:20,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:39:20,175 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 02:39:20,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:39:20,238 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 02:39:20,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:39:20,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:20,249 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:20,250 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:20,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:20,257 INFO L85 PathProgramCache]: Analyzing trace with hash -514692415, now seen corresponding path program 1 times [2021-11-23 02:39:20,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:20,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867699677] [2021-11-23 02:39:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:20,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:20,518 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 02:39:20,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:20,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867699677] [2021-11-23 02:39:20,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867699677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:20,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:20,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:20,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751765212] [2021-11-23 02:39:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:20,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:39:20,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:39:20,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:39:20,565 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:39:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:20,645 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2021-11-23 02:39:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:39:20,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 02:39:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:20,658 INFO L225 Difference]: With dead ends: 114 [2021-11-23 02:39:20,658 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:39:20,662 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 02:39:20,667 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 02:39:20,668 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 02:39:20,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:39:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:39:20,716 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 02:39:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2021-11-23 02:39:20,720 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 21 [2021-11-23 02:39:20,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:20,721 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2021-11-23 02:39:20,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:39:20,722 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2021-11-23 02:39:20,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 02:39:20,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:20,725 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:20,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:39:20,726 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash 738841292, now seen corresponding path program 1 times [2021-11-23 02:39:20,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:20,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74393866] [2021-11-23 02:39:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:20,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:20,837 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 02:39:20,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:20,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74393866] [2021-11-23 02:39:20,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74393866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:20,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:20,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:20,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666306830] [2021-11-23 02:39:20,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:20,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:20,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:20,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:20,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:20,842 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:39:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:20,933 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2021-11-23 02:39:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:20,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-23 02:39:20,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:20,938 INFO L225 Difference]: With dead ends: 83 [2021-11-23 02:39:20,939 INFO L226 Difference]: Without dead ends: 45 [2021-11-23 02:39:20,945 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 02:39:20,947 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:20,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-23 02:39:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-23 02:39:20,959 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 02:39:20,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2021-11-23 02:39:20,969 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 22 [2021-11-23 02:39:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:20,972 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-11-23 02:39:20,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:39:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2021-11-23 02:39:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:39:20,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:20,977 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] [2021-11-23 02:39:20,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:39:20,978 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:20,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:20,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1512610996, now seen corresponding path program 1 times [2021-11-23 02:39:20,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:20,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366000405] [2021-11-23 02:39:20,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:20,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:21,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:21,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366000405] [2021-11-23 02:39:21,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366000405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:21,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:21,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:39:21,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91607031] [2021-11-23 02:39:21,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:21,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:39:21,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:21,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:39:21,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:39:21,184 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:39:21,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:21,462 INFO L93 Difference]: Finished difference Result 126 states and 165 transitions. [2021-11-23 02:39:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:39:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2021-11-23 02:39:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:21,471 INFO L225 Difference]: With dead ends: 126 [2021-11-23 02:39:21,472 INFO L226 Difference]: Without dead ends: 83 [2021-11-23 02:39:21,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:39:21,482 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 30 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:21,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 235 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:39:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-23 02:39:21,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2021-11-23 02:39:21,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 59 states have internal predecessors, (66), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-11-23 02:39:21,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2021-11-23 02:39:21,509 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 24 [2021-11-23 02:39:21,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:21,510 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2021-11-23 02:39:21,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:39:21,510 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2021-11-23 02:39:21,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:39:21,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:21,512 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:21,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:39:21,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:21,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash -864113261, now seen corresponding path program 1 times [2021-11-23 02:39:21,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:21,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069496010] [2021-11-23 02:39:21,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:21,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:21,754 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:21,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069496010] [2021-11-23 02:39:21,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069496010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:21,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:21,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 02:39:21,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681371679] [2021-11-23 02:39:21,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:21,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:39:21,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:21,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:39:21,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:39:21,759 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:39:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:22,288 INFO L93 Difference]: Finished difference Result 231 states and 291 transitions. [2021-11-23 02:39:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 02:39:22,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2021-11-23 02:39:22,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:22,296 INFO L225 Difference]: With dead ends: 231 [2021-11-23 02:39:22,296 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 02:39:22,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-11-23 02:39:22,310 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 133 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:22,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 423 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:39:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 02:39:22,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 138. [2021-11-23 02:39:22,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 92 states have (on average 1.25) internal successors, (115), 101 states have internal predecessors, (115), 24 states have call successors, (24), 20 states have call predecessors, (24), 21 states have return successors, (32), 24 states have call predecessors, (32), 24 states have call successors, (32) [2021-11-23 02:39:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2021-11-23 02:39:22,365 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 32 [2021-11-23 02:39:22,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:22,365 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2021-11-23 02:39:22,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:39:22,366 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2021-11-23 02:39:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 02:39:22,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:22,368 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:22,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:39:22,374 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:22,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1101283266, now seen corresponding path program 1 times [2021-11-23 02:39:22,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:22,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964270296] [2021-11-23 02:39:22,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:22,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:22,621 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 02:39:22,621 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:22,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964270296] [2021-11-23 02:39:22,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964270296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:22,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:22,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:39:22,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470628950] [2021-11-23 02:39:22,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:22,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:39:22,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:39:22,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:39:22,630 INFO L87 Difference]: Start difference. First operand 138 states and 171 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 02:39:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:23,198 INFO L93 Difference]: Finished difference Result 360 states and 460 transitions. [2021-11-23 02:39:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 02:39:23,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2021-11-23 02:39:23,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:23,211 INFO L225 Difference]: With dead ends: 360 [2021-11-23 02:39:23,216 INFO L226 Difference]: Without dead ends: 258 [2021-11-23 02:39:23,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:39:23,221 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 161 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:23,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 262 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:39:23,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-23 02:39:23,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 228. [2021-11-23 02:39:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.2549019607843137) internal successors, (192), 169 states have internal predecessors, (192), 39 states have call successors, (39), 30 states have call predecessors, (39), 35 states have return successors, (54), 41 states have call predecessors, (54), 39 states have call successors, (54) [2021-11-23 02:39:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 285 transitions. [2021-11-23 02:39:23,283 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 285 transitions. Word has length 35 [2021-11-23 02:39:23,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:23,284 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 285 transitions. [2021-11-23 02:39:23,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 02:39:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 285 transitions. [2021-11-23 02:39:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 02:39:23,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:23,288 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:23,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:39:23,289 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:23,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1104355329, now seen corresponding path program 1 times [2021-11-23 02:39:23,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:23,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748835362] [2021-11-23 02:39:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:23,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:39:23,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:23,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748835362] [2021-11-23 02:39:23,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748835362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:23,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:23,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:23,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930521139] [2021-11-23 02:39:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:23,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:23,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:23,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:23,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:23,371 INFO L87 Difference]: Start difference. First operand 228 states and 285 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-23 02:39:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:23,442 INFO L93 Difference]: Finished difference Result 454 states and 574 transitions. [2021-11-23 02:39:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:23,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2021-11-23 02:39:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:23,450 INFO L225 Difference]: With dead ends: 454 [2021-11-23 02:39:23,450 INFO L226 Difference]: Without dead ends: 228 [2021-11-23 02:39:23,452 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 02:39:23,454 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:23,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 41 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-23 02:39:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-11-23 02:39:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 153 states have (on average 1.2222222222222223) internal successors, (187), 169 states have internal predecessors, (187), 39 states have call successors, (39), 30 states have call predecessors, (39), 35 states have return successors, (54), 41 states have call predecessors, (54), 39 states have call successors, (54) [2021-11-23 02:39:23,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 280 transitions. [2021-11-23 02:39:23,503 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 280 transitions. Word has length 52 [2021-11-23 02:39:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:23,505 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 280 transitions. [2021-11-23 02:39:23,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-23 02:39:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 280 transitions. [2021-11-23 02:39:23,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 02:39:23,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:23,519 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:23,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:39:23,520 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash 126587872, now seen corresponding path program 1 times [2021-11-23 02:39:23,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:23,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987780099] [2021-11-23 02:39:23,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:23,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:39:23,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:23,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987780099] [2021-11-23 02:39:23,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987780099] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:23,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182179120] [2021-11-23 02:39:23,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:23,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:23,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:23,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:23,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:39:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:23,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 02:39:23,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:24,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:39:24,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182179120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:24,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:39:24,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-11-23 02:39:24,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534138027] [2021-11-23 02:39:24,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:24,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:24,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:24,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:39:24,020 INFO L87 Difference]: Start difference. First operand 228 states and 280 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:39:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:24,085 INFO L93 Difference]: Finished difference Result 338 states and 420 transitions. [2021-11-23 02:39:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:24,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2021-11-23 02:39:24,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:24,089 INFO L225 Difference]: With dead ends: 338 [2021-11-23 02:39:24,089 INFO L226 Difference]: Without dead ends: 218 [2021-11-23 02:39:24,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 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 02:39:24,091 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 26 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 97 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 02:39:24,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 97 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-23 02:39:24,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-23 02:39:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 146 states have (on average 1.1917808219178083) internal successors, (174), 161 states have internal predecessors, (174), 37 states have call successors, (37), 30 states have call predecessors, (37), 34 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2021-11-23 02:39:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 255 transitions. [2021-11-23 02:39:24,118 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 255 transitions. Word has length 60 [2021-11-23 02:39:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:24,118 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 255 transitions. [2021-11-23 02:39:24,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:39:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 255 transitions. [2021-11-23 02:39:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 02:39:24,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:24,121 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-23 02:39:24,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:24,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:24,349 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1462786826, now seen corresponding path program 1 times [2021-11-23 02:39:24,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:24,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704831209] [2021-11-23 02:39:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:24,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 02:39:24,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:24,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704831209] [2021-11-23 02:39:24,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704831209] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:24,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477264021] [2021-11-23 02:39:24,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:24,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:24,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:24,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:24,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:39:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:24,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:39:24,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:24,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:39:25,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477264021] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:39:25,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1171837704] [2021-11-23 02:39:25,179 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 02:39:25,180 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:39:25,201 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:39:25,217 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:39:25,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:39:32,682 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2021-11-23 02:39:32,697 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2021-11-23 02:39:33,137 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2021-11-23 02:39:33,140 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 72 for LOIs [2021-11-23 02:39:33,541 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 48 for LOIs [2021-11-23 02:39:33,548 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:39:39,575 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4952#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2)) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 2147483647) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 2147483648)) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:39:39,575 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:39:39,575 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:39:39,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-23 02:39:39,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437252861] [2021-11-23 02:39:39,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:39:39,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 02:39:39,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 02:39:39,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1530, Unknown=0, NotChecked=0, Total=1722 [2021-11-23 02:39:39,581 INFO L87 Difference]: Start difference. First operand 218 states and 255 transitions. Second operand has 11 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-23 02:39:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:40,437 INFO L93 Difference]: Finished difference Result 322 states and 380 transitions. [2021-11-23 02:39:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 02:39:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 63 [2021-11-23 02:39:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:40,441 INFO L225 Difference]: With dead ends: 322 [2021-11-23 02:39:40,441 INFO L226 Difference]: Without dead ends: 320 [2021-11-23 02:39:40,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=296, Invalid=2784, Unknown=0, NotChecked=0, Total=3080 [2021-11-23 02:39:40,445 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 161 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:40,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 631 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:39:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-11-23 02:39:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 276. [2021-11-23 02:39:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 182 states have (on average 1.1813186813186813) internal successors, (215), 203 states have internal predecessors, (215), 49 states have call successors, (49), 41 states have call predecessors, (49), 44 states have return successors, (60), 46 states have call predecessors, (60), 49 states have call successors, (60) [2021-11-23 02:39:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 324 transitions. [2021-11-23 02:39:40,484 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 324 transitions. Word has length 63 [2021-11-23 02:39:40,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:40,484 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 324 transitions. [2021-11-23 02:39:40,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-23 02:39:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 324 transitions. [2021-11-23 02:39:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 02:39:40,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:40,487 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:40,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:40,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:40,688 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:40,689 INFO L85 PathProgramCache]: Analyzing trace with hash -393213066, now seen corresponding path program 1 times [2021-11-23 02:39:40,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:40,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831534695] [2021-11-23 02:39:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:40,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-23 02:39:40,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:40,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831534695] [2021-11-23 02:39:40,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831534695] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:40,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152984656] [2021-11-23 02:39:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:40,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:40,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:40,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:40,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:39:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:41,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 02:39:41,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:39:41,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 02:39:41,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152984656] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:39:41,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [974647264] [2021-11-23 02:39:41,888 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2021-11-23 02:39:41,888 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:39:41,890 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:39:41,890 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:39:41,890 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:39:47,269 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 56 for LOIs [2021-11-23 02:39:47,281 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2021-11-23 02:39:47,516 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2021-11-23 02:39:47,529 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2021-11-23 02:39:47,566 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:39:52,708 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6454#(and (<= 0 |old(~pumpRunning~0)|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2)) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |timeShift_getWaterLevel_#res#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:39:52,708 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:39:52,708 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:39:52,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2021-11-23 02:39:52,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823968032] [2021-11-23 02:39:52,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:39:52,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 02:39:52,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:52,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 02:39:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1997, Unknown=0, NotChecked=0, Total=2256 [2021-11-23 02:39:52,711 INFO L87 Difference]: Start difference. First operand 276 states and 324 transitions. Second operand has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 7 states have call successors, (18), 5 states have call predecessors, (18), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-23 02:39:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:54,471 INFO L93 Difference]: Finished difference Result 790 states and 1021 transitions. [2021-11-23 02:39:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 02:39:54,472 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 7 states have call successors, (18), 5 states have call predecessors, (18), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 80 [2021-11-23 02:39:54,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:54,478 INFO L225 Difference]: With dead ends: 790 [2021-11-23 02:39:54,478 INFO L226 Difference]: Without dead ends: 522 [2021-11-23 02:39:54,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1794 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=631, Invalid=4919, Unknown=0, NotChecked=0, Total=5550 [2021-11-23 02:39:54,483 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 420 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:54,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 457 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 02:39:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-11-23 02:39:54,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 324. [2021-11-23 02:39:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 214 states have (on average 1.1401869158878504) internal successors, (244), 236 states have internal predecessors, (244), 54 states have call successors, (54), 49 states have call predecessors, (54), 55 states have return successors, (69), 55 states have call predecessors, (69), 54 states have call successors, (69) [2021-11-23 02:39:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 367 transitions. [2021-11-23 02:39:54,551 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 367 transitions. Word has length 80 [2021-11-23 02:39:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:54,552 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 367 transitions. [2021-11-23 02:39:54,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 7 states have call successors, (18), 5 states have call predecessors, (18), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-23 02:39:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 367 transitions. [2021-11-23 02:39:54,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-23 02:39:54,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:54,557 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:54,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:54,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:54,777 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:54,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:54,778 INFO L85 PathProgramCache]: Analyzing trace with hash -87770958, now seen corresponding path program 1 times [2021-11-23 02:39:54,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:54,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602342881] [2021-11-23 02:39:54,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:54,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 15 proven. 36 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-23 02:39:55,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:55,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602342881] [2021-11-23 02:39:55,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602342881] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:39:55,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593130524] [2021-11-23 02:39:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:55,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:39:55,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:55,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:39:55,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:39:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:55,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 02:39:55,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:39:55,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-23 02:39:56,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593130524] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:39:56,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [605260508] [2021-11-23 02:39:56,544 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2021-11-23 02:39:56,544 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:39:56,544 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:39:56,544 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:39:56,545 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:40:01,942 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 49 for LOIs [2021-11-23 02:40:01,950 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2021-11-23 02:40:02,323 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 40 for LOIs [2021-11-23 02:40:02,331 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 29 for LOIs [2021-11-23 02:40:02,361 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:40:07,844 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8847#(and (<= 0 |old(~pumpRunning~0)|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2)) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |timeShift_getWaterLevel_#res#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~5#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:40:07,844 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:40:07,844 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:40:07,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 32 [2021-11-23 02:40:07,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310271881] [2021-11-23 02:40:07,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:40:07,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-23 02:40:07,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:40:07,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-23 02:40:07,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=3177, Unknown=0, NotChecked=0, Total=3540 [2021-11-23 02:40:07,848 INFO L87 Difference]: Start difference. First operand 324 states and 367 transitions. Second operand has 32 states, 31 states have (on average 4.483870967741935) internal successors, (139), 31 states have internal predecessors, (139), 17 states have call successors, (26), 8 states have call predecessors, (26), 12 states have return successors, (24), 16 states have call predecessors, (24), 16 states have call successors, (24) [2021-11-23 02:40:11,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:11,182 INFO L93 Difference]: Finished difference Result 837 states and 990 transitions. [2021-11-23 02:40:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-23 02:40:11,183 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.483870967741935) internal successors, (139), 31 states have internal predecessors, (139), 17 states have call successors, (26), 8 states have call predecessors, (26), 12 states have return successors, (24), 16 states have call predecessors, (24), 16 states have call successors, (24) Word has length 85 [2021-11-23 02:40:11,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:11,184 INFO L225 Difference]: With dead ends: 837 [2021-11-23 02:40:11,184 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:40:11,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 237 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3804 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1332, Invalid=9380, Unknown=0, NotChecked=0, Total=10712 [2021-11-23 02:40:11,193 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 1128 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:11,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 752 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:40:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:40:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:40:11,194 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 02:40:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:40:11,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2021-11-23 02:40:11,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:11,195 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:40:11,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.483870967741935) internal successors, (139), 31 states have internal predecessors, (139), 17 states have call successors, (26), 8 states have call predecessors, (26), 12 states have return successors, (24), 16 states have call predecessors, (24), 16 states have call successors, (24) [2021-11-23 02:40:11,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:40:11,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:40:11,198 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:40:11,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:40:11,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:40:11,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:40:19,630 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 102 108) no Hoare annotation was computed. [2021-11-23 02:40:19,630 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 102 108) the Hoare annotation is: true [2021-11-23 02:40:19,631 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 377 388) the Hoare annotation is: true [2021-11-23 02:40:19,631 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 377 388) no Hoare annotation was computed. [2021-11-23 02:40:19,631 INFO L858 garLoopResultBuilder]: For program point L929(line 929) no Hoare annotation was computed. [2021-11-23 02:40:19,631 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 908 937) no Hoare annotation was computed. [2021-11-23 02:40:19,631 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 908 937) the Hoare annotation is: true [2021-11-23 02:40:19,631 INFO L858 garLoopResultBuilder]: For program point L922(lines 922 926) no Hoare annotation was computed. [2021-11-23 02:40:19,632 INFO L861 garLoopResultBuilder]: At program point L922-1(lines 922 926) the Hoare annotation is: true [2021-11-23 02:40:19,632 INFO L861 garLoopResultBuilder]: At program point L918-2(lines 918 932) the Hoare annotation is: true [2021-11-23 02:40:19,632 INFO L861 garLoopResultBuilder]: At program point L914(line 914) the Hoare annotation is: true [2021-11-23 02:40:19,632 INFO L858 garLoopResultBuilder]: For program point L914-1(line 914) no Hoare annotation was computed. [2021-11-23 02:40:19,632 INFO L861 garLoopResultBuilder]: At program point L933(lines 908 937) the Hoare annotation is: true [2021-11-23 02:40:19,632 INFO L854 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (.cse8 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1) .cse3)) (or .cse0 .cse4 .cse1 .cse5 .cse6) (or .cse7 .cse1 .cse5 .cse6) (or .cse8 .cse0 .cse4 .cse1 (not (<= |old(~waterLevel~0)| 0))) (or .cse0 .cse4 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse9) (or .cse8 .cse7 .cse1 .cse9)))) [2021-11-23 02:40:19,633 INFO L854 garLoopResultBuilder]: At program point L155-1(lines 136 160) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse15 (= ~pumpRunning~0 1))) (let ((.cse4 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) .cse13 (not .cse2) .cse15)) (.cse9 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse6 .cse13 .cse8)) (.cse12 (<= |old(~waterLevel~0)| 0)) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (= ~waterLevel~0 1)) (.cse14 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (not (< |old(~waterLevel~0)| 3))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse6 .cse7 .cse8)) (let ((.cse11 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or .cse9 (not (<= |old(~waterLevel~0)| 1)) .cse10 (and .cse6 (or .cse11 (and .cse12 .cse13)) .cse14) .cse2 (and (<= ~waterLevel~0 0) (or .cse11 .cse13) .cse8 .cse15))) (or .cse9 .cse0 .cse1 .cse2 (not .cse12)) (or .cse10 (and .cse7 .cse8 .cse15) .cse2 .cse3 .cse5 (and .cse6 .cse7 .cse14))))) [2021-11-23 02:40:19,633 INFO L854 garLoopResultBuilder]: At program point L89-1(lines 89 95) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse15 (= ~pumpRunning~0 1))) (let ((.cse4 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) .cse13 (not .cse2) .cse15)) (.cse9 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse6 .cse13 .cse8)) (.cse12 (<= |old(~waterLevel~0)| 0)) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (= ~waterLevel~0 1)) (.cse14 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (not (< |old(~waterLevel~0)| 3))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse6 .cse7 .cse8)) (let ((.cse11 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or .cse9 (not (<= |old(~waterLevel~0)| 1)) .cse10 (and .cse6 (or .cse11 (and .cse12 .cse13)) .cse14) .cse2 (and (<= ~waterLevel~0 0) (or .cse11 .cse13) .cse8 .cse15))) (or .cse9 .cse0 .cse1 .cse2 (not .cse12)) (or .cse10 (and .cse7 .cse8 .cse15) .cse2 .cse3 .cse5 (and .cse6 .cse7 .cse14))))) [2021-11-23 02:40:19,634 INFO L854 garLoopResultBuilder]: At program point L849(line 849) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse5 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| ~waterLevel~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse9 (= 0 ~systemActive~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (= ~pumpRunning~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse11 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse14 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (<= ~waterLevel~0 1) .cse5 .cse4 .cse7 (not .cse9))) (.cse15 (not (< |old(~waterLevel~0)| 3))) (.cse13 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (= ~waterLevel~0 1))) (and (let ((.cse3 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)))) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (or .cse3 (and (<= |old(~waterLevel~0)| 0) .cse4)) .cse5 .cse6) (and (<= ~waterLevel~0 0) .cse5 (or .cse3 .cse4) .cse7 .cse8) .cse9)) (or .cse1 (and .cse5 .cse10 .cse7 .cse8) .cse9 .cse11 (and .cse2 .cse5 .cse10 .cse6) .cse12) (or .cse13 .cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse14 .cse15) (or .cse13 .cse9 .cse11 .cse12) (or .cse0 .cse13 .cse9 .cse14 .cse15) (or .cse13 (not (= |old(~waterLevel~0)| 1)) (and .cse2 .cse5 .cse10 .cse7) .cse9)))) [2021-11-23 02:40:19,634 INFO L858 garLoopResultBuilder]: For program point L849-1(line 849) no Hoare annotation was computed. [2021-11-23 02:40:19,634 INFO L858 garLoopResultBuilder]: For program point L82-2(lines 78 100) no Hoare annotation was computed. [2021-11-23 02:40:19,635 INFO L854 garLoopResultBuilder]: At program point L144(lines 144 152) the Hoare annotation is: (let ((.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 .cse0 .cse1 .cse2) (or .cse4 (and (= ~waterLevel~0 1) .cse5 .cse6) .cse1 .cse7 .cse8) (or .cse0 .cse1 .cse7 .cse8) (or .cse3 (not (<= |old(~waterLevel~0)| 1)) .cse4 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse5 .cse6)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2021-11-23 02:40:19,635 INFO L854 garLoopResultBuilder]: At program point L140(lines 140 157) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse3 (= ~waterLevel~0 1)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (= ~pumpRunning~0 1)) (.cse10 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse11 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and .cse2 .cse12 .cse4)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4)) (or .cse0 .cse5 .cse1 .cse6 .cse7) (or .cse8 (and .cse3 .cse4 .cse9) .cse1 .cse6 .cse7) (or .cse0 .cse5 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (not (< |old(~waterLevel~0)| 3))) (or .cse10 .cse11 .cse8 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse12) .cse4 .cse9)) (or .cse10 .cse11 .cse0 .cse5 .cse1)))) [2021-11-23 02:40:19,636 INFO L854 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: (let ((.cse10 (= ~pumpRunning~0 0)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse8 (and .cse10 .cse7)) (.cse11 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse13 (and .cse7 (= ~pumpRunning~0 1))) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse4 (not (< |old(~waterLevel~0)| 3))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse2) (or .cse5 .cse6 .cse8 .cse2 .cse9) (or .cse0 .cse6 (and .cse10 .cse3) .cse2 .cse4) (or .cse6 .cse8 .cse2 .cse11 .cse12) (or .cse1 .cse2 .cse11 .cse13 .cse12) (or .cse0 .cse5 .cse1 .cse2 .cse13) (or .cse6 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse9 .cse4) (or .cse6 (not (= |old(~waterLevel~0)| 1)) (and .cse10 (= ~waterLevel~0 1)) .cse2)))) [2021-11-23 02:40:19,636 INFO L854 garLoopResultBuilder]: At program point L834-1(line 834) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= ~waterLevel~0 1))) (let ((.cse8 (= ~pumpRunning~0 0)) (.cse9 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret49#1|)) (.cse15 (or .cse10 .cse11)) (.cse16 (not .cse4))) (let ((.cse12 (and .cse8 .cse9 .cse15 (<= 1 ~switchedOnBeforeTS~0) .cse16)) (.cse13 (and .cse8 .cse9 .cse15 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse16))) (let ((.cse2 (and .cse9 .cse10 (= ~pumpRunning~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (<= |old(~waterLevel~0)| 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (and .cse10 (or .cse12 .cse13)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 (and .cse8 .cse9 .cse10) .cse4 .cse5 .cse6) (or .cse7 (not (= |old(~waterLevel~0)| 1)) (and .cse8 .cse9 .cse11) .cse4) (or .cse0 .cse7 .cse12 .cse4 .cse5 .cse13) (or .cse0 .cse1 .cse7 .cse14 .cse4) (or .cse7 .cse14 .cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) (not (< |old(~waterLevel~0)| 3)))))))) [2021-11-23 02:40:19,636 INFO L854 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 .cse0 .cse1 .cse2) (or .cse4 .cse1 .cse5 .cse6) (or .cse0 .cse1 .cse5 .cse6) (or .cse3 .cse4 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2021-11-23 02:40:19,637 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 861) no Hoare annotation was computed. [2021-11-23 02:40:19,637 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 864) no Hoare annotation was computed. [2021-11-23 02:40:19,637 INFO L854 garLoopResultBuilder]: At program point L847-1(lines 839 867) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse10 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| ~waterLevel~0)) (.cse17 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse12 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (= 0 ~systemActive~0))) (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7 (<= ~waterLevel~0 1) .cse10 .cse17 .cse12 (not .cse2))) (.cse15 (not (<= |old(~waterLevel~0)| 2))) (.cse16 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= 1 ~switchedOnBeforeTS~0)) (.cse13 (= ~pumpRunning~0 1)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse14 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse3) (let ((.cse8 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse9 (< 0 |old(~waterLevel~0)|))) (or .cse4 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11) .cse2 (and .cse8 .cse9 .cse10 .cse12 .cse13))) (or .cse6 (and .cse10 .cse14 .cse12 .cse13) .cse2 .cse15 (and .cse7 .cse10 .cse14 .cse11) .cse16) (or .cse4 .cse0 .cse1 .cse2 .cse3) (or .cse1 (and .cse10 .cse17 .cse13) (and .cse7 .cse10 .cse17 .cse12) .cse2 .cse15 .cse16) (or .cse4 .cse6 .cse2 (and .cse7 .cse10 .cse17 .cse11) (not (<= |old(~waterLevel~0)| 0)) (and .cse10 .cse17 .cse12 .cse13)) (or .cse1 .cse5 (and .cse7 .cse10 .cse14 .cse12) .cse2)))) [2021-11-23 02:40:19,638 INFO L854 garLoopResultBuilder]: At program point L150(line 150) the Hoare annotation is: (let ((.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 .cse0 .cse1 .cse2) (or .cse4 (and (= ~waterLevel~0 1) .cse5 .cse6) .cse1 .cse7 .cse8) (or .cse0 .cse1 .cse7 .cse8) (or .cse3 (not (<= |old(~waterLevel~0)| 1)) .cse4 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse5 .cse6)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2021-11-23 02:40:19,638 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 858) no Hoare annotation was computed. [2021-11-23 02:40:19,638 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 75 101) the Hoare annotation is: (let ((.cse10 (= ~pumpRunning~0 0)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse8 (and .cse10 .cse7)) (.cse11 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse13 (and .cse7 (= ~pumpRunning~0 1))) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse4 (not (< |old(~waterLevel~0)| 3))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse7 .cse2) (or .cse5 .cse6 .cse8 .cse2 .cse9) (or .cse0 .cse6 (and .cse10 .cse3) .cse2 .cse4) (or .cse6 .cse8 .cse2 .cse11 .cse12) (or .cse1 .cse2 .cse11 .cse13 .cse12) (or .cse0 .cse5 .cse1 .cse2 .cse13) (or .cse6 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse9 .cse4) (or .cse6 (not (= |old(~waterLevel~0)| 1)) (and .cse10 (= ~waterLevel~0 1)) .cse2)))) [2021-11-23 02:40:19,638 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 75 101) no Hoare annotation was computed. [2021-11-23 02:40:19,638 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-23 02:40:19,639 INFO L854 garLoopResultBuilder]: At program point L341(lines 292 342) the Hoare annotation is: false [2021-11-23 02:40:19,639 INFO L854 garLoopResultBuilder]: At program point L990(lines 990 997) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= 0 ~systemActive~0))) [2021-11-23 02:40:19,639 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:40:19,639 INFO L861 garLoopResultBuilder]: At program point L990-2(lines 990 997) the Hoare annotation is: true [2021-11-23 02:40:19,639 INFO L858 garLoopResultBuilder]: For program point L313(lines 313 319) no Hoare annotation was computed. [2021-11-23 02:40:19,639 INFO L854 garLoopResultBuilder]: At program point L313-1(lines 313 319) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse6 (<= 2 ~waterLevel~0)) (.cse7 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (< ~waterLevel~0 3)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse5 .cse0 (= ~waterLevel~0 1) .cse3) (and .cse6 .cse0 .cse7 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse7 .cse3) (and .cse5 .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse3))) [2021-11-23 02:40:19,639 INFO L854 garLoopResultBuilder]: At program point L338(lines 293 340) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= ~waterLevel~0 2)) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (< ~waterLevel~0 3) .cse1 .cse2 .cse3) (and .cse4 .cse0 (= ~waterLevel~0 1) .cse2) (and (<= 2 ~waterLevel~0) .cse0 .cse5 .cse2 .cse3) (and .cse4 (<= ~waterLevel~0 1) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse4 .cse0 .cse5 .cse1 .cse2))) [2021-11-23 02:40:19,640 INFO L854 garLoopResultBuilder]: At program point L305(line 305) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse6 (<= 2 ~waterLevel~0)) (.cse7 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (< ~waterLevel~0 3)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse6 .cse0 .cse7 .cse3 .cse4) (and (or (and .cse5 .cse0 (= ~waterLevel~0 1)) (and .cse5 .cse6 .cse0 .cse7)) .cse3) (and .cse5 .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse3))) [2021-11-23 02:40:19,640 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:40:19,640 INFO L854 garLoopResultBuilder]: At program point L331-2(lines 323 336) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse6 (<= 2 ~waterLevel~0)) (.cse7 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (< ~waterLevel~0 3)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse5 .cse0 (= ~waterLevel~0 1) .cse3) (and .cse6 .cse0 .cse7 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse7 .cse3) (and .cse5 .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse3))) [2021-11-23 02:40:19,640 INFO L858 garLoopResultBuilder]: For program point L294(lines 293 340) no Hoare annotation was computed. [2021-11-23 02:40:19,640 INFO L854 garLoopResultBuilder]: At program point L315(line 315) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse6 (<= 2 ~waterLevel~0)) (.cse7 (<= ~waterLevel~0 2)) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (< ~waterLevel~0 3)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse3) (and .cse5 .cse0 (= ~waterLevel~0 1) .cse3) (and .cse6 .cse0 .cse7 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse7 .cse3) (and .cse5 .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse3))) [2021-11-23 02:40:19,640 INFO L861 garLoopResultBuilder]: At program point L344(lines 283 348) the Hoare annotation is: true [2021-11-23 02:40:19,641 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 309) no Hoare annotation was computed. [2021-11-23 02:40:19,641 INFO L858 garLoopResultBuilder]: For program point L303-1(lines 303 309) no Hoare annotation was computed. [2021-11-23 02:40:19,641 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 110 134) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or (not (= ~waterLevel~0 1)) .cse2 .cse0 .cse1 .cse3) (or (not (<= ~waterLevel~0 0)) .cse2 .cse0 .cse1 .cse3))) [2021-11-23 02:40:19,641 INFO L854 garLoopResultBuilder]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1 (not (< ~waterLevel~0 3)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-11-23 02:40:19,642 INFO L854 garLoopResultBuilder]: At program point L118(lines 118 126) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1 (not (< ~waterLevel~0 3)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-11-23 02:40:19,642 INFO L854 garLoopResultBuilder]: At program point L114(lines 114 131) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or (not (= ~waterLevel~0 1)) .cse2 .cse0 .cse1 .cse3) (or (not (<= ~waterLevel~0 0)) .cse2 .cse0 .cse1 .cse3))) [2021-11-23 02:40:19,642 INFO L854 garLoopResultBuilder]: At program point L129(line 129) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3)) .cse1) (or (not (= ~waterLevel~0 1)) .cse2 .cse0 .cse1 .cse3) (or (not (<= ~waterLevel~0 0)) .cse2 .cse0 .cse1 .cse3))) [2021-11-23 02:40:19,642 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 110 134) no Hoare annotation was computed. [2021-11-23 02:40:19,642 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 110 134) no Hoare annotation was computed. [2021-11-23 02:40:19,642 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 365 376) no Hoare annotation was computed. [2021-11-23 02:40:19,643 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 365 376) the Hoare annotation is: (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse6 (not (= ~pumpRunning~0 1))) (.cse5 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~systemActive~0))) (and (or (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)))) .cse3 .cse4) (or .cse0 .cse5 .cse3 .cse4 (not (<= |old(~waterLevel~0)| 0))) (or .cse6 .cse3 .cse4 .cse1 .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse3 .cse4 (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse6 .cse5 .cse3 .cse4 (not (< |old(~waterLevel~0)| 3))))) [2021-11-23 02:40:19,643 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 188 196) no Hoare annotation was computed. [2021-11-23 02:40:19,643 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 188 196) the Hoare annotation is: true [2021-11-23 02:40:19,647 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:40:19,649 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:40:19,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:40:19 BoogieIcfgContainer [2021-11-23 02:40:19,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:40:19,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:40:19,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:40:19,710 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:40:19,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:20" (3/4) ... [2021-11-23 02:40:19,714 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:40:19,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:40:19,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:40:19,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:40:19,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:40:19,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 02:40:19,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:40:19,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:40:19,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2021-11-23 02:40:19,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 02:40:19,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 02:40:19,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:40:19,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:40:19,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:40:19,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:40:19,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) && ((((((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && waterLevel == 1)) || 0 == systemActive)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || (\old(waterLevel) == waterLevel && (((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && !(0 == systemActive)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && (((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && !(0 == systemActive)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))))) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) [2021-11-23 02:40:19,771 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 0))) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2021-11-23 02:40:19,771 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && tmp == waterLevel) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(pumpRunning) == 1) || (((tmp == waterLevel && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)))) && (((((!(\old(pumpRunning) == 0) || ((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 0)) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) [2021-11-23 02:40:19,772 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) [2021-11-23 02:40:19,772 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) [2021-11-23 02:40:19,772 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 0))) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2021-11-23 02:40:19,773 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || 0 == systemActive) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1)) && ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) [2021-11-23 02:40:19,774 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) [2021-11-23 02:40:19,775 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || ((2 <= waterLevel || tmp == 0) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning)))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) [2021-11-23 02:40:19,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:40:19,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:40:19,809 INFO L158 Benchmark]: Toolchain (without parser) took 61349.36ms. Allocated memory was 83.9MB in the beginning and 444.6MB in the end (delta: 360.7MB). Free memory was 45.6MB in the beginning and 364.2MB in the end (delta: -318.5MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,810 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:40:19,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.75ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 45.4MB in the beginning and 68.5MB in the end (delta: -23.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.59ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 65.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,811 INFO L158 Benchmark]: Boogie Preprocessor took 56.90ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 63.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,811 INFO L158 Benchmark]: RCFGBuilder took 835.50ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 42.1MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,812 INFO L158 Benchmark]: TraceAbstraction took 59646.80ms. Allocated memory was 100.7MB in the beginning and 444.6MB in the end (delta: 343.9MB). Free memory was 41.7MB in the beginning and 370.4MB in the end (delta: -328.8MB). Peak memory consumption was 238.5MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,812 INFO L158 Benchmark]: Witness Printer took 99.42ms. Allocated memory is still 444.6MB. Free memory was 370.4MB in the beginning and 364.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:40:19,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.75ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 45.4MB in the beginning and 68.5MB in the end (delta: -23.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.59ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 65.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.90ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 63.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.50ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 42.1MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 59646.80ms. Allocated memory was 100.7MB in the beginning and 444.6MB in the end (delta: 343.9MB). Free memory was 41.7MB in the beginning and 370.4MB in the end (delta: -328.8MB). Peak memory consumption was 238.5MB. Max. memory is 16.1GB. * Witness Printer took 99.42ms. Allocated memory is still 444.6MB. Free memory was 370.4MB in the beginning and 364.2MB 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: 59.5s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2131 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2103 mSDsluCounter, 3032 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2948 mSDsCounter, 1305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4373 IncrementalHoareTripleChecker+Invalid, 5678 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1305 mSolverCounterUnsat, 727 mSDtfsCounter, 4373 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 968 GetRequests, 692 SyntacticMatches, 4 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6521 ImplicationChecksByTransitivity, 20.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=9, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 292 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 1117 PreInvPairs, 1347 NumberOfFragments, 3196 HoareAnnotationTreeSize, 1117 FomulaSimplifications, 7880 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 36 FomulaSimplificationsInter, 28060 FormulaSimplificationTreeSizeReductionInter, 7.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 762 NumberOfCodeBlocks, 762 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 973 ConstructedInterpolants, 0 QuantifiedInterpolants, 3020 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1943 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 500/581 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: 114]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || 0 == systemActive) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1)) && ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 0))) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && waterLevel < 3) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)) && pumpRunning == 1) || (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) && !(0 == systemActive))) || ((((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) && !(0 == systemActive)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || ((((pumpRunning == 0 && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)) - InvariantResult [Line: 990]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && waterLevel < 3) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)) && pumpRunning == 1) || ((((pumpRunning == 0 && splverifierCounter == 0) && waterLevel < 3) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))) || (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) && !(0 == systemActive))) || ((((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) && !(0 == systemActive)) && pumpRunning == 1)) || ((((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && !(0 == systemActive))) || ((((pumpRunning == 0 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && !(0 == systemActive)) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) - InvariantResult [Line: 89]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || ((((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || (\old(waterLevel) <= 0 && \old(waterLevel) == waterLevel))) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 0))) && (((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 834]: Loop Invariant Derived loop invariant: (((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) && ((((((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && waterLevel == 1)) || 0 == systemActive)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || (\old(waterLevel) == waterLevel && (((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && !(0 == systemActive)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))))) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && (((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && !(0 == systemActive)) || ((((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))))) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((!(waterLevel <= 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || ((2 <= waterLevel || tmp == 0) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning)))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(switchedOnBeforeTS == \old(pumpRunning))) - InvariantResult [Line: 990]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive) - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: (((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) == 1)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 0 < \old(waterLevel)) && tmp == waterLevel) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(pumpRunning) == 1) || (((tmp == waterLevel && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && !(0 == systemActive)))) && (((((!(\old(pumpRunning) == 0) || ((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 0)) || (((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || 0 == systemActive) RESULT: Ultimate proved your program to be correct! [2021-11-23 02:40:19,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7ed6bad-4181-438b-94ab-7289e1f01247/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