./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh --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 0fa225959be52b1defd5d055d32ae3a8dd944c37a01adb589e2f547028e60f67 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:30:58,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:30:58,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:30:58,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:30:58,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:30:58,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:30:58,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:30:58,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:30:58,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:30:58,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:30:58,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:30:58,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:30:58,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:30:58,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:30:58,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:30:58,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:30:58,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:30:58,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:30:58,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:30:58,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:30:58,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:30:58,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:30:58,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:30:58,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:30:58,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:30:58,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:30:58,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:30:58,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:30:58,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:30:58,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:30:58,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:30:58,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:30:58,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:30:58,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:30:58,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:30:58,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:30:58,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:30:58,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:30:58,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:30:58,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:30:58,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:30:58,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:30:58,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:30:58,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:30:58,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:30:58,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:30:58,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:30:58,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:30:58,438 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:30:58,438 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:30:58,438 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:30:58,439 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:30:58,439 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:30:58,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:30:58,440 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:30:58,440 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:30:58,440 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:30:58,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:30:58,440 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:30:58,441 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:30:58,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:30:58,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:30:58,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:30:58,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:30:58,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:30:58,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:30:58,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:30:58,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:30:58,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:30:58,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:30:58,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:30:58,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:30:58,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:30:58,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:30:58,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:30:58,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:30:58,444 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:30:58,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:30:58,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:30:58,445 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:30:58,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:30:58,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:30:58,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:30:58,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa225959be52b1defd5d055d32ae3a8dd944c37a01adb589e2f547028e60f67 [2022-12-14 07:30:58,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:30:58,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:30:58,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:30:58,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:30:58,628 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:30:58,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2022-12-14 07:31:01,229 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:31:01,400 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:31:01,400 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c [2022-12-14 07:31:01,407 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/data/19c12f8bb/fc3dcbe47c0446b9a3c36f4777bfb454/FLAG5b603eff0 [2022-12-14 07:31:01,782 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/data/19c12f8bb/fc3dcbe47c0446b9a3c36f4777bfb454 [2022-12-14 07:31:01,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:31:01,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:31:01,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:31:01,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:31:01,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:31:01,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:31:01" (1/1) ... [2022-12-14 07:31:01,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cb5583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:01, skipping insertion in model container [2022-12-14 07:31:01,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:31:01" (1/1) ... [2022-12-14 07:31:01,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:31:01,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:31:02,048 WARN L237 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_0aa85197-0f18-4cba-a190-3f93757eb7ed/sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c[14569,14582] [2022-12-14 07:31:02,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:31:02,070 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:31:02,107 WARN L237 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_0aa85197-0f18-4cba-a190-3f93757eb7ed/sv-benchmarks/c/product-lines/minepump_spec1_product60.cil.c[14569,14582] [2022-12-14 07:31:02,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:31:02,134 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:31:02,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02 WrapperNode [2022-12-14 07:31:02,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:31:02,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:31:02,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:31:02,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:31:02,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,166 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 218 [2022-12-14 07:31:02,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:31:02,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:31:02,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:31:02,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:31:02,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:31:02,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:31:02,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:31:02,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:31:02,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (1/1) ... [2022-12-14 07:31:02,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:31:02,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:02,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:31:02,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:31:02,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:31:02,246 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 07:31:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 07:31:02,247 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 07:31:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 07:31:02,247 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 07:31:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 07:31:02,247 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 07:31:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 07:31:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 07:31:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 07:31:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 07:31:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 07:31:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 07:31:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 07:31:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:31:02,249 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 07:31:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 07:31:02,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:31:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:31:02,317 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:31:02,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:31:02,548 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:31:02,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:31:02,636 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 07:31:02,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:02 BoogieIcfgContainer [2022-12-14 07:31:02,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:31:02,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:31:02,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:31:02,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:31:02,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:31:01" (1/3) ... [2022-12-14 07:31:02,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d6cb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:31:02, skipping insertion in model container [2022-12-14 07:31:02,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:31:02" (2/3) ... [2022-12-14 07:31:02,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d6cb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:31:02, skipping insertion in model container [2022-12-14 07:31:02,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:02" (3/3) ... [2022-12-14 07:31:02,644 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product60.cil.c [2022-12-14 07:31:02,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:31:02,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:31:02,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:31:02,719 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57d9e3e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:31:02,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:31:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 50 states have internal predecessors, (59), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 07:31:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 07:31:02,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:02,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:02,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1988837213, now seen corresponding path program 1 times [2022-12-14 07:31:02,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:02,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932254588] [2022-12-14 07:31:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:02,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:02,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:02,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932254588] [2022-12-14 07:31:02,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932254588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:02,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:02,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:31:02,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720245413] [2022-12-14 07:31:02,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:02,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:31:02,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:31:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:31:02,910 INFO L87 Difference]: Start difference. First operand has 65 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 50 states have internal predecessors, (59), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:02,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:02,967 INFO L93 Difference]: Finished difference Result 128 states and 175 transitions. [2022-12-14 07:31:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:31:02,969 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-14 07:31:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:02,976 INFO L225 Difference]: With dead ends: 128 [2022-12-14 07:31:02,976 INFO L226 Difference]: Without dead ends: 60 [2022-12-14 07:31:02,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:31:02,981 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:02,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:31:02,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-14 07:31:03,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-12-14 07:31:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 46 states have internal predecessors, (51), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 07:31:03,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2022-12-14 07:31:03,010 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 16 [2022-12-14 07:31:03,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:03,010 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2022-12-14 07:31:03,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2022-12-14 07:31:03,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:31:03,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:03,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:03,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:31:03,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:03,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1788725520, now seen corresponding path program 1 times [2022-12-14 07:31:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:03,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035341712] [2022-12-14 07:31:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:03,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:03,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:03,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:03,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035341712] [2022-12-14 07:31:03,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035341712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:03,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:03,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:31:03,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106784376] [2022-12-14 07:31:03,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:03,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:31:03,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:31:03,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:31:03,094 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:03,133 INFO L93 Difference]: Finished difference Result 92 states and 118 transitions. [2022-12-14 07:31:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:31:03,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 07:31:03,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:03,135 INFO L225 Difference]: With dead ends: 92 [2022-12-14 07:31:03,135 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 07:31:03,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:31:03,137 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 14 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:03,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 88 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:31:03,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 07:31:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-14 07:31:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 41 states have internal predecessors, (45), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 07:31:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-12-14 07:31:03,145 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2022-12-14 07:31:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:03,146 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-12-14 07:31:03,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-12-14 07:31:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 07:31:03,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:03,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:03,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:31:03,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:03,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:03,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1134886856, now seen corresponding path program 1 times [2022-12-14 07:31:03,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:03,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311112963] [2022-12-14 07:31:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:03,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:03,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:03,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311112963] [2022-12-14 07:31:03,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311112963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:03,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:03,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:31:03,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187262412] [2022-12-14 07:31:03,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:03,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:31:03,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:03,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:31:03,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:31:03,249 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:03,337 INFO L93 Difference]: Finished difference Result 135 states and 174 transitions. [2022-12-14 07:31:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:31:03,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-12-14 07:31:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:03,339 INFO L225 Difference]: With dead ends: 135 [2022-12-14 07:31:03,339 INFO L226 Difference]: Without dead ends: 85 [2022-12-14 07:31:03,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:31:03,341 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 90 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:03,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 131 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:31:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-14 07:31:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2022-12-14 07:31:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 64 states have internal predecessors, (72), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2022-12-14 07:31:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2022-12-14 07:31:03,357 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 20 [2022-12-14 07:31:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:03,358 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2022-12-14 07:31:03,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2022-12-14 07:31:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 07:31:03,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:03,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:03,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:31:03,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash -687037027, now seen corresponding path program 1 times [2022-12-14 07:31:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:03,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205871646] [2022-12-14 07:31:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:03,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:03,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:03,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205871646] [2022-12-14 07:31:03,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205871646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:03,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:03,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 07:31:03,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125205629] [2022-12-14 07:31:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:03,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:31:03,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:31:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:31:03,466 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:03,609 INFO L93 Difference]: Finished difference Result 240 states and 314 transitions. [2022-12-14 07:31:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:31:03,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-12-14 07:31:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:03,612 INFO L225 Difference]: With dead ends: 240 [2022-12-14 07:31:03,612 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 07:31:03,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:31:03,614 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 45 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:03,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 268 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:31:03,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 07:31:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2022-12-14 07:31:03,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 99 states have (on average 1.3434343434343434) internal successors, (133), 118 states have internal predecessors, (133), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (32), 22 states have call predecessors, (32), 30 states have call successors, (32) [2022-12-14 07:31:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2022-12-14 07:31:03,638 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 23 [2022-12-14 07:31:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:03,638 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2022-12-14 07:31:03,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 07:31:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2022-12-14 07:31:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 07:31:03,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:03,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:03,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:31:03,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1123248443, now seen corresponding path program 1 times [2022-12-14 07:31:03,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:03,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635413792] [2022-12-14 07:31:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:03,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:03,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635413792] [2022-12-14 07:31:03,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635413792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:03,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:03,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:31:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683141394] [2022-12-14 07:31:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:03,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:31:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:31:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:31:03,720 INFO L87 Difference]: Start difference. First operand 152 states and 195 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:31:03,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:03,787 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2022-12-14 07:31:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:31:03,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-12-14 07:31:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:03,789 INFO L225 Difference]: With dead ends: 368 [2022-12-14 07:31:03,789 INFO L226 Difference]: Without dead ends: 218 [2022-12-14 07:31:03,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:31:03,791 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:03,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 155 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:31:03,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-14 07:31:03,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 210. [2022-12-14 07:31:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 143 states have (on average 1.2797202797202798) internal successors, (183), 159 states have internal predecessors, (183), 35 states have call successors, (35), 31 states have call predecessors, (35), 31 states have return successors, (47), 33 states have call predecessors, (47), 35 states have call successors, (47) [2022-12-14 07:31:03,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 265 transitions. [2022-12-14 07:31:03,819 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 265 transitions. Word has length 26 [2022-12-14 07:31:03,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:03,819 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 265 transitions. [2022-12-14 07:31:03,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 07:31:03,819 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 265 transitions. [2022-12-14 07:31:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 07:31:03,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:03,821 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:03,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:31:03,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:03,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1225257400, now seen corresponding path program 1 times [2022-12-14 07:31:03,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:03,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451918708] [2022-12-14 07:31:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:03,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:31:03,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:03,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451918708] [2022-12-14 07:31:03,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451918708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:03,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:31:03,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:31:03,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601802841] [2022-12-14 07:31:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:03,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:31:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:03,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:31:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:31:03,858 INFO L87 Difference]: Start difference. First operand 210 states and 265 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 07:31:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:03,924 INFO L93 Difference]: Finished difference Result 422 states and 532 transitions. [2022-12-14 07:31:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:31:03,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2022-12-14 07:31:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:03,927 INFO L225 Difference]: With dead ends: 422 [2022-12-14 07:31:03,927 INFO L226 Difference]: Without dead ends: 214 [2022-12-14 07:31:03,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:31:03,929 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 29 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:03,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 119 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:31:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-14 07:31:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 210. [2022-12-14 07:31:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 143 states have (on average 1.2657342657342658) internal successors, (181), 159 states have internal predecessors, (181), 35 states have call successors, (35), 31 states have call predecessors, (35), 31 states have return successors, (43), 33 states have call predecessors, (43), 35 states have call successors, (43) [2022-12-14 07:31:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 259 transitions. [2022-12-14 07:31:03,959 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 259 transitions. Word has length 38 [2022-12-14 07:31:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:03,959 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 259 transitions. [2022-12-14 07:31:03,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 07:31:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 259 transitions. [2022-12-14 07:31:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 07:31:03,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:03,961 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:03,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:31:03,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:03,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:03,962 INFO L85 PathProgramCache]: Analyzing trace with hash -878330093, now seen corresponding path program 1 times [2022-12-14 07:31:03,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:03,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529736695] [2022-12-14 07:31:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:03,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:31:04,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:04,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529736695] [2022-12-14 07:31:04,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529736695] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:31:04,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990925496] [2022-12-14 07:31:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:04,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:04,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:31:04,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:31:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:04,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 07:31:04,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:04,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:31:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:31:04,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990925496] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:31:04,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1018464656] [2022-12-14 07:31:04,840 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-12-14 07:31:04,840 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:31:04,844 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:31:04,849 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:31:04,849 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:31:05,788 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 137 for LOIs [2022-12-14 07:31:06,114 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 133 for LOIs [2022-12-14 07:31:06,184 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 114 for LOIs [2022-12-14 07:31:06,194 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:31:11,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1018464656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:31:11,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:31:11,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [12, 10, 10] total 38 [2022-12-14 07:31:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573392540] [2022-12-14 07:31:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:31:11,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 07:31:11,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 07:31:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 07:31:11,426 INFO L87 Difference]: Start difference. First operand 210 states and 259 transitions. Second operand has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 07:31:13,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:13,801 INFO L93 Difference]: Finished difference Result 490 states and 604 transitions. [2022-12-14 07:31:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 07:31:13,802 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2022-12-14 07:31:13,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:13,803 INFO L225 Difference]: With dead ends: 490 [2022-12-14 07:31:13,803 INFO L226 Difference]: Without dead ends: 282 [2022-12-14 07:31:13,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=310, Invalid=1412, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 07:31:13,805 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 70 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:13,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 292 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 07:31:13,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-12-14 07:31:13,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 269. [2022-12-14 07:31:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 201 states have internal predecessors, (229), 44 states have call successors, (44), 40 states have call predecessors, (44), 40 states have return successors, (52), 41 states have call predecessors, (52), 44 states have call successors, (52) [2022-12-14 07:31:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 325 transitions. [2022-12-14 07:31:13,844 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 325 transitions. Word has length 35 [2022-12-14 07:31:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:13,844 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 325 transitions. [2022-12-14 07:31:13,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 07:31:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 325 transitions. [2022-12-14 07:31:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 07:31:13,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:13,846 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:31:13,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:31:14,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:14,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:14,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:14,049 INFO L85 PathProgramCache]: Analyzing trace with hash 104817413, now seen corresponding path program 1 times [2022-12-14 07:31:14,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:14,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614969902] [2022-12-14 07:31:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:14,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:31:14,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:14,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614969902] [2022-12-14 07:31:14,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614969902] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:31:14,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433545385] [2022-12-14 07:31:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:14,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:14,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:31:14,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:31:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:14,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 07:31:14,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:31:14,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:31:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:31:14,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433545385] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:31:14,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1692013414] [2022-12-14 07:31:14,627 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2022-12-14 07:31:14,627 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:31:14,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:31:14,628 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:31:14,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:31:15,327 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-12-14 07:31:15,334 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 134 for LOIs [2022-12-14 07:31:15,685 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 129 for LOIs [2022-12-14 07:31:16,003 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 43 for LOIs [2022-12-14 07:31:16,006 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 112 for LOIs [2022-12-14 07:31:16,013 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:31:23,609 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5050#(and (<= ~methaneLevelCritical~0 1) (<= ~pumpRunning~0 1) (= ~head~0.offset 0) (<= 2 ~waterLevel~0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~9#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (<= 2 |old(~waterLevel~0)|) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0)) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 07:31:23,609 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:31:23,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:31:23,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 24 [2022-12-14 07:31:23,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319022695] [2022-12-14 07:31:23,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:31:23,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 07:31:23,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:23,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 07:31:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=2213, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 07:31:23,613 INFO L87 Difference]: Start difference. First operand 269 states and 325 transitions. Second operand has 24 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 7 states have call successors, (14), 6 states have call predecessors, (14), 10 states have return successors, (13), 11 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 07:31:26,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:26,309 INFO L93 Difference]: Finished difference Result 1157 states and 1552 transitions. [2022-12-14 07:31:26,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-12-14 07:31:26,309 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 7 states have call successors, (14), 6 states have call predecessors, (14), 10 states have return successors, (13), 11 states have call predecessors, (13), 7 states have call successors, (13) Word has length 38 [2022-12-14 07:31:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:26,312 INFO L225 Difference]: With dead ends: 1157 [2022-12-14 07:31:26,312 INFO L226 Difference]: Without dead ends: 897 [2022-12-14 07:31:26,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 87 SyntacticMatches, 3 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4877 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1552, Invalid=11558, Unknown=0, NotChecked=0, Total=13110 [2022-12-14 07:31:26,315 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 914 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:26,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 598 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:31:26,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-12-14 07:31:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 639. [2022-12-14 07:31:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 440 states have (on average 1.2068181818181818) internal successors, (531), 476 states have internal predecessors, (531), 101 states have call successors, (101), 84 states have call predecessors, (101), 97 states have return successors, (124), 103 states have call predecessors, (124), 101 states have call successors, (124) [2022-12-14 07:31:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 756 transitions. [2022-12-14 07:31:26,380 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 756 transitions. Word has length 38 [2022-12-14 07:31:26,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:26,380 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 756 transitions. [2022-12-14 07:31:26,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 18 states have internal predecessors, (59), 7 states have call successors, (14), 6 states have call predecessors, (14), 10 states have return successors, (13), 11 states have call predecessors, (13), 7 states have call successors, (13) [2022-12-14 07:31:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 756 transitions. [2022-12-14 07:31:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 07:31:26,381 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:26,382 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1] [2022-12-14 07:31:26,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:31:26,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 07:31:26,584 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 453710968, now seen corresponding path program 1 times [2022-12-14 07:31:26,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:26,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266281264] [2022-12-14 07:31:26,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:26,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 07:31:27,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:27,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266281264] [2022-12-14 07:31:27,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266281264] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:31:27,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475292294] [2022-12-14 07:31:27,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:27,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:27,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:27,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:31:27,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:31:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:27,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-14 07:31:27,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:31:27,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:31:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:31:27,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475292294] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:31:27,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1647477761] [2022-12-14 07:31:27,625 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-12-14 07:31:27,625 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:31:27,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:31:27,626 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:31:27,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:31:29,672 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 132 for LOIs [2022-12-14 07:31:29,694 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 41 for LOIs [2022-12-14 07:31:29,879 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 37 for LOIs [2022-12-14 07:31:30,034 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 38 for LOIs [2022-12-14 07:31:30,038 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 22 for LOIs [2022-12-14 07:31:30,040 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 40 for LOIs [2022-12-14 07:31:30,043 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:31:33,985 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8347#(and (<= ~methaneLevelCritical~0 1) (<= 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483648)) (= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483647) (= 1 ~systemActive~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0)) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 07:31:33,985 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:31:33,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:31:33,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14] total 31 [2022-12-14 07:31:33,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131639276] [2022-12-14 07:31:33,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:31:33,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 07:31:33,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 07:31:33,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=431, Invalid=3351, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 07:31:33,990 INFO L87 Difference]: Start difference. First operand 639 states and 756 transitions. Second operand has 31 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 25 states have internal predecessors, (95), 13 states have call successors, (24), 11 states have call predecessors, (24), 10 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) [2022-12-14 07:31:36,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:36,697 INFO L93 Difference]: Finished difference Result 3275 states and 4012 transitions. [2022-12-14 07:31:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-12-14 07:31:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 25 states have internal predecessors, (95), 13 states have call successors, (24), 11 states have call predecessors, (24), 10 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) Word has length 67 [2022-12-14 07:31:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:36,705 INFO L225 Difference]: With dead ends: 3275 [2022-12-14 07:31:36,705 INFO L226 Difference]: Without dead ends: 2758 [2022-12-14 07:31:36,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 153 SyntacticMatches, 15 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7824 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2255, Invalid=14775, Unknown=0, NotChecked=0, Total=17030 [2022-12-14 07:31:36,710 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 1515 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 1241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1241 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:36,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 943 Invalid, 3250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1241 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 07:31:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2022-12-14 07:31:36,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2398. [2022-12-14 07:31:36,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 1696 states have (on average 1.2234669811320755) internal successors, (2075), 1816 states have internal predecessors, (2075), 363 states have call successors, (363), 278 states have call predecessors, (363), 338 states have return successors, (481), 386 states have call predecessors, (481), 363 states have call successors, (481) [2022-12-14 07:31:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 2919 transitions. [2022-12-14 07:31:36,929 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 2919 transitions. Word has length 67 [2022-12-14 07:31:36,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:36,929 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 2919 transitions. [2022-12-14 07:31:36,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 25 states have internal predecessors, (95), 13 states have call successors, (24), 11 states have call predecessors, (24), 10 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) [2022-12-14 07:31:36,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 2919 transitions. [2022-12-14 07:31:36,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 07:31:36,932 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:36,932 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 07:31:36,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 07:31:37,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:37,133 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:37,135 INFO L85 PathProgramCache]: Analyzing trace with hash -2107184382, now seen corresponding path program 1 times [2022-12-14 07:31:37,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:37,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051972720] [2022-12-14 07:31:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:37,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 31 proven. 17 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:31:37,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051972720] [2022-12-14 07:31:37,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051972720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:31:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10833485] [2022-12-14 07:31:37,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:37,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:37,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:31:37,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:31:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:37,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 07:31:37,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:31:37,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:31:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:31:38,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10833485] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:31:38,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [419263263] [2022-12-14 07:31:38,488 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-12-14 07:31:38,489 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:31:38,489 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:31:38,489 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:31:38,489 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:31:39,276 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2022-12-14 07:31:39,424 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 37 for LOIs [2022-12-14 07:31:39,555 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 37 for LOIs [2022-12-14 07:31:39,560 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 22 for LOIs [2022-12-14 07:31:39,562 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 40 for LOIs [2022-12-14 07:31:39,566 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:31:43,691 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17559#(and (<= ~methaneLevelCritical~0 1) (<= 0 ~systemActive~0) (<= 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483648)) (= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0)) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 07:31:43,691 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:31:43,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:31:43,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 14] total 30 [2022-12-14 07:31:43,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266510507] [2022-12-14 07:31:43,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:31:43,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 07:31:43,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:43,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 07:31:43,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=3390, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 07:31:43,695 INFO L87 Difference]: Start difference. First operand 2398 states and 2919 transitions. Second operand has 30 states, 27 states have (on average 4.666666666666667) internal successors, (126), 25 states have internal predecessors, (126), 18 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (25), 12 states have call predecessors, (25), 18 states have call successors, (25) [2022-12-14 07:31:46,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:46,108 INFO L93 Difference]: Finished difference Result 6548 states and 8082 transitions. [2022-12-14 07:31:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 07:31:46,109 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 4.666666666666667) internal successors, (126), 25 states have internal predecessors, (126), 18 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (25), 12 states have call predecessors, (25), 18 states have call successors, (25) Word has length 85 [2022-12-14 07:31:46,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:46,121 INFO L225 Difference]: With dead ends: 6548 [2022-12-14 07:31:46,121 INFO L226 Difference]: Without dead ends: 4315 [2022-12-14 07:31:46,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 207 SyntacticMatches, 11 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4093 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1235, Invalid=8665, Unknown=0, NotChecked=0, Total=9900 [2022-12-14 07:31:46,127 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 852 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:46,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 595 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 07:31:46,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4315 states. [2022-12-14 07:31:46,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4315 to 2924. [2022-12-14 07:31:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2072 states have (on average 1.2186293436293436) internal successors, (2525), 2206 states have internal predecessors, (2525), 433 states have call successors, (433), 367 states have call predecessors, (433), 418 states have return successors, (553), 435 states have call predecessors, (553), 433 states have call successors, (553) [2022-12-14 07:31:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3511 transitions. [2022-12-14 07:31:46,446 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3511 transitions. Word has length 85 [2022-12-14 07:31:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:46,446 INFO L495 AbstractCegarLoop]: Abstraction has 2924 states and 3511 transitions. [2022-12-14 07:31:46,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 4.666666666666667) internal successors, (126), 25 states have internal predecessors, (126), 18 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (25), 12 states have call predecessors, (25), 18 states have call successors, (25) [2022-12-14 07:31:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3511 transitions. [2022-12-14 07:31:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 07:31:46,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:46,451 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 07:31:46,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:31:46,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 07:31:46,653 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:46,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash -379202635, now seen corresponding path program 1 times [2022-12-14 07:31:46,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:46,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069063059] [2022-12-14 07:31:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 55 proven. 55 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-14 07:31:47,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:31:47,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069063059] [2022-12-14 07:31:47,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069063059] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:31:47,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619631713] [2022-12-14 07:31:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:47,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:47,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:31:47,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:31:47,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:31:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:31:47,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-14 07:31:47,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:31:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 71 proven. 67 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 07:31:47,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:31:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 72 proven. 32 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 07:31:48,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619631713] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:31:48,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1077979750] [2022-12-14 07:31:48,252 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-12-14 07:31:48,252 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:31:48,252 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:31:48,252 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:31:48,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:31:50,329 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 132 for LOIs [2022-12-14 07:31:50,347 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 41 for LOIs [2022-12-14 07:31:50,614 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 37 for LOIs [2022-12-14 07:31:50,780 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 38 for LOIs [2022-12-14 07:31:50,783 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 22 for LOIs [2022-12-14 07:31:50,785 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 40 for LOIs [2022-12-14 07:31:50,788 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 44 for LOIs [2022-12-14 07:31:50,792 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:31:56,165 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32593#(and (<= ~methaneLevelCritical~0 1) (<= 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483648)) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0)) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 07:31:56,165 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:31:56,165 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:31:56,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 44 [2022-12-14 07:31:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124616585] [2022-12-14 07:31:56,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:31:56,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-14 07:31:56,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:31:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-14 07:31:56,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=5334, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 07:31:56,168 INFO L87 Difference]: Start difference. First operand 2924 states and 3511 transitions. Second operand has 44 states, 39 states have (on average 4.538461538461538) internal successors, (177), 40 states have internal predecessors, (177), 26 states have call successors, (42), 12 states have call predecessors, (42), 17 states have return successors, (42), 19 states have call predecessors, (42), 26 states have call successors, (42) [2022-12-14 07:31:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:31:59,210 INFO L93 Difference]: Finished difference Result 6728 states and 8313 transitions. [2022-12-14 07:31:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-14 07:31:59,211 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 39 states have (on average 4.538461538461538) internal successors, (177), 40 states have internal predecessors, (177), 26 states have call successors, (42), 12 states have call predecessors, (42), 17 states have return successors, (42), 19 states have call predecessors, (42), 26 states have call successors, (42) Word has length 121 [2022-12-14 07:31:59,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:31:59,222 INFO L225 Difference]: With dead ends: 6728 [2022-12-14 07:31:59,222 INFO L226 Difference]: Without dead ends: 3788 [2022-12-14 07:31:59,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 297 SyntacticMatches, 26 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9419 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=2428, Invalid=15662, Unknown=0, NotChecked=0, Total=18090 [2022-12-14 07:31:59,230 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1703 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2426 mSolverCounterSat, 1247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 3673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1247 IncrementalHoareTripleChecker+Valid, 2426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:31:59,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 1116 Invalid, 3673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1247 Valid, 2426 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:31:59,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2022-12-14 07:31:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 2941. [2022-12-14 07:31:59,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2094 states have (on average 1.2196752626552054) internal successors, (2554), 2229 states have internal predecessors, (2554), 443 states have call successors, (443), 400 states have call predecessors, (443), 403 states have return successors, (504), 403 states have call predecessors, (504), 443 states have call successors, (504) [2022-12-14 07:31:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 3501 transitions. [2022-12-14 07:31:59,562 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 3501 transitions. Word has length 121 [2022-12-14 07:31:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:31:59,562 INFO L495 AbstractCegarLoop]: Abstraction has 2941 states and 3501 transitions. [2022-12-14 07:31:59,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 39 states have (on average 4.538461538461538) internal successors, (177), 40 states have internal predecessors, (177), 26 states have call successors, (42), 12 states have call predecessors, (42), 17 states have return successors, (42), 19 states have call predecessors, (42), 26 states have call successors, (42) [2022-12-14 07:31:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 3501 transitions. [2022-12-14 07:31:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-14 07:31:59,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:31:59,566 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-12-14 07:31:59,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 07:31:59,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:31:59,766 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:31:59,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:31:59,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1216847147, now seen corresponding path program 1 times [2022-12-14 07:31:59,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:31:59,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013416037] [2022-12-14 07:31:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:31:59,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:31:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:32:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 29 proven. 127 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-12-14 07:32:00,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:32:00,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013416037] [2022-12-14 07:32:00,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013416037] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:32:00,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252739246] [2022-12-14 07:32:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:32:00,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:32:00,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:32:00,498 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:32:00,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:32:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:32:00,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 07:32:00,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:32:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 100 proven. 59 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-12-14 07:32:00,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:32:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-14 07:32:00,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252739246] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:32:00,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1280661420] [2022-12-14 07:32:00,888 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2022-12-14 07:32:00,888 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:32:00,888 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:32:00,889 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:32:00,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:32:02,501 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 39 for LOIs [2022-12-14 07:32:02,505 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2022-12-14 07:32:02,700 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 58 for LOIs [2022-12-14 07:32:02,931 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 22 for LOIs [2022-12-14 07:32:02,932 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 38 for LOIs [2022-12-14 07:32:02,936 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 34 for LOIs [2022-12-14 07:32:02,938 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 30 for LOIs [2022-12-14 07:32:02,939 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:32:06,719 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '48101#(and (<= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 1) (<= ~methaneLevelCritical~0 1) (<= 0 ~systemActive~0) (<= 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483648)) (= ~head~0.offset 0) (<= 0 |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~9#1|) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0)) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-12-14 07:32:06,719 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:32:06,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:32:06,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 7, 7] total 29 [2022-12-14 07:32:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713332085] [2022-12-14 07:32:06,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:32:06,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 07:32:06,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:32:06,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 07:32:06,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=4397, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 07:32:06,722 INFO L87 Difference]: Start difference. First operand 2941 states and 3501 transitions. Second operand has 29 states, 26 states have (on average 5.961538461538462) internal successors, (155), 25 states have internal predecessors, (155), 13 states have call successors, (37), 8 states have call predecessors, (37), 11 states have return successors, (37), 12 states have call predecessors, (37), 13 states have call successors, (37) [2022-12-14 07:32:07,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:32:07,967 INFO L93 Difference]: Finished difference Result 3678 states and 4324 transitions. [2022-12-14 07:32:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 07:32:07,967 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 5.961538461538462) internal successors, (155), 25 states have internal predecessors, (155), 13 states have call successors, (37), 8 states have call predecessors, (37), 11 states have return successors, (37), 12 states have call predecessors, (37), 13 states have call successors, (37) Word has length 145 [2022-12-14 07:32:07,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:32:07,968 INFO L225 Difference]: With dead ends: 3678 [2022-12-14 07:32:07,968 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:32:07,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 402 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3602 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=965, Invalid=8347, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 07:32:07,973 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 589 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:32:07,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 585 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 07:32:07,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:32:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:32:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:32:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:32:07,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2022-12-14 07:32:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:32:07,974 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:32:07,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 5.961538461538462) internal successors, (155), 25 states have internal predecessors, (155), 13 states have call successors, (37), 8 states have call predecessors, (37), 11 states have return successors, (37), 12 states have call predecessors, (37), 13 states have call successors, (37) [2022-12-14 07:32:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:32:07,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:32:07,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 07:32:07,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 07:32:08,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 07:32:08,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 07:32:24,389 WARN L233 SmtUtils]: Spent 12.41s on a formula simplification. DAG size of input: 466 DAG size of output: 466 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 07:32:47,355 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 851 858) no Hoare annotation was computed. [2022-12-14 07:32:47,356 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 851 858) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (= |old(~pumpRunning~0)| 0)) (or .cse0 .cse1 (not (= 2 ~waterLevel~0))))) [2022-12-14 07:32:47,356 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 766 772) no Hoare annotation was computed. [2022-12-14 07:32:47,356 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 766 772) the Hoare annotation is: true [2022-12-14 07:32:47,356 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 186 197) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (< ~waterLevel~0 2)) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse3 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse6 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse3 .cse4 .cse5 .cse6) (or .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse3 .cse6))) [2022-12-14 07:32:47,356 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 186 197) no Hoare annotation was computed. [2022-12-14 07:32:47,356 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 198 206) the Hoare annotation is: true [2022-12-14 07:32:47,356 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 198 206) no Hoare annotation was computed. [2022-12-14 07:32:47,357 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (= ~waterLevel~0 1)) (.cse10 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= ~pumpRunning~0 0)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse9 (not (= 0 ~systemActive~0))) (.cse5 (not .cse1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse11 (= ~methaneLevelCritical~0 0)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 (= |timeShift_processEnvironment_~tmp~7#1| 1) .cse3) (< 2 |old(~waterLevel~0)|) .cse4) (or .cse5 .cse6 (and .cse2 .cse7 .cse8) .cse9 .cse4) (or .cse5 .cse10 .cse0 (and .cse2 .cse3)) (or .cse5 (and .cse2 .cse7) .cse11 .cse0 .cse6 .cse4) (or .cse5 .cse10 (and .cse2 .cse8 (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse9) (or .cse5 .cse0 (not .cse11) .cse6 (and .cse7 (= ~pumpRunning~0 1)) .cse4)))) [2022-12-14 07:32:47,357 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2022-12-14 07:32:47,357 INFO L899 garLoopResultBuilder]: For program point L746-1(lines 745 764) no Hoare annotation was computed. [2022-12-14 07:32:47,357 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 816) no Hoare annotation was computed. [2022-12-14 07:32:47,357 INFO L895 garLoopResultBuilder]: At program point L804(lines 804 821) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3 (and .cse4 (= ~waterLevel~0 1))) (or .cse0 .cse5 .cse2 .cse6) (or .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (and .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (and (not .cse4) (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))))) .cse5 .cse6))) [2022-12-14 07:32:47,357 INFO L899 garLoopResultBuilder]: For program point L277(lines 277 283) no Hoare annotation was computed. [2022-12-14 07:32:47,357 INFO L895 garLoopResultBuilder]: At program point L661(line 661) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or .cse0 .cse1 .cse5) (or .cse5 .cse3 .cse4))) [2022-12-14 07:32:47,358 INFO L895 garLoopResultBuilder]: At program point L273(lines 273 286) the Hoare annotation is: (let ((.cse15 (= ~methaneLevelCritical~0 0)) (.cse12 (= |old(~pumpRunning~0)| 0)) (.cse10 (= ~pumpRunning~0 0)) (.cse17 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0))) (let ((.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse11 (= ~waterLevel~0 1)) (.cse8 (not .cse0)) (.cse16 (or (and (not (< 0 ~waterLevel~0)) .cse17) (and .cse10 .cse17))) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not .cse12)) (.cse2 (not .cse15)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (= 0 ~systemActive~0))) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse7 .cse8) (or .cse0 .cse5 .cse6 .cse2 .cse9) (or .cse5 .cse6 .cse7 .cse9 .cse8) (or .cse1 (and .cse5 .cse10 (= |timeShift_processEnvironment_~tmp~7#1| 1) .cse11) (let ((.cse13 (= ~pumpRunning~0 1))) (and .cse12 (or (and .cse0 .cse13) (and .cse10 .cse8)) .cse14 (or (and .cse10 .cse2) (and .cse15 .cse13)))) .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse16 .cse11)) (or .cse5 .cse15 .cse3 .cse9 .cse8 .cse4) (or .cse5 .cse3 (and .cse16 .cse14) .cse9 .cse4) (or .cse5 .cse6 (and .cse10 .cse17 (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse9) (or .cse0 .cse5 .cse2 .cse3 .cse9 .cse4)))) [2022-12-14 07:32:47,358 INFO L895 garLoopResultBuilder]: At program point L273-1(lines 265 289) the Hoare annotation is: (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~1#1| 0)) (.cse17 (= ~methaneLevelCritical~0 0)) (.cse18 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse18)) (.cse3 (not .cse17)) (.cse10 (= 0 ~systemActive~0)) (.cse12 (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~0#1| 0)) (.cse19 (not .cse0))) (let ((.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (= ~waterLevel~0 1)) (.cse9 (= ~pumpRunning~0 0)) (.cse16 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (and .cse12 .cse19)) (.cse4 (not .cse10)) (.cse5 (not (= 1 ~systemActive~0))) (.cse13 (and (or .cse1 .cse17) (or .cse3 (not (= |old(~pumpRunning~0)| 1))))) (.cse14 (not (<= |old(~waterLevel~0)| 2))) (.cse15 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse6 .cse7) (or .cse1 .cse2 (and .cse8 .cse9 .cse10 .cse11) .cse4) (or .cse12 .cse5 .cse13 .cse11 .cse14 .cse15) (or .cse1 .cse2 .cse6 .cse7 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse3) (or (and .cse9 .cse11 .cse4) .cse1 .cse2 .cse5) (or .cse1 (and .cse8 .cse9 .cse16 .cse10) (not (= |old(~waterLevel~0)| 2)) .cse4) (or .cse5 (and .cse1 .cse9 (= |timeShift_processEnvironment_~tmp~7#1| 1) .cse11 .cse4) (and .cse0 .cse17 .cse18 .cse16 (= ~pumpRunning~0 1)) .cse14 (and .cse9 .cse18 .cse3 .cse16 .cse19) .cse15) (or .cse1 .cse17 .cse14 .cse7 .cse4 .cse15) (or .cse0 .cse1 .cse3 .cse14 .cse4 .cse15) (or .cse0 .cse5 .cse13 .cse3 .cse14 .cse15))))) [2022-12-14 07:32:47,358 INFO L895 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or .cse0 .cse1 .cse5) (or .cse5 .cse3 .cse4))) [2022-12-14 07:32:47,359 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 0 ~systemActive~0))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~pumpRunning~0 0)) (= |timeShift_processEnvironment_~tmp~7#1| 1) (= ~waterLevel~0 1)) .cse2) (or .cse3 .cse4 .cse5) (or .cse3 .cse1 .cse5 .cse2) (or .cse3 .cse4 .cse0))) [2022-12-14 07:32:47,359 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 742 765) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0))) (let ((.cse7 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse8 (and .cse1 (= ~waterLevel~0 1))) (.cse4 (not (= 0 ~systemActive~0)))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4 .cse5) (or .cse0 .cse6 .cse7 .cse8) (or .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) .cse3 .cse5) (or .cse0 .cse6 .cse8 .cse4)))) [2022-12-14 07:32:47,359 INFO L895 garLoopResultBuilder]: At program point L819(line 819) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse5 (or (= ~pumpRunning~0 0) (not (< 0 ~waterLevel~0)))) (.cse6 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or (and .cse5 (= ~waterLevel~0 1)) .cse0 .cse1 .cse6) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse6 .cse3 .cse4))) [2022-12-14 07:32:47,359 INFO L895 garLoopResultBuilder]: At program point L819-1(lines 800 824) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= ~waterLevel~0 1)) (.cse7 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse5 (not .cse1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse10 (= ~methaneLevelCritical~0 0)) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 (= |timeShift_processEnvironment_~tmp~7#1| 1) .cse3) (< 2 |old(~waterLevel~0)|) .cse4) (or .cse5 .cse6 .cse7) (or .cse5 .cse6 .cse0 (and .cse2 .cse3)) (or .cse5 .cse8 .cse7 .cse4) (or .cse5 (and .cse2 .cse9) .cse10 .cse0 .cse8 .cse4) (or .cse5 .cse0 (not .cse10) .cse8 (and .cse9 (= ~pumpRunning~0 1)) .cse4)))) [2022-12-14 07:32:47,359 INFO L899 garLoopResultBuilder]: For program point L753-1(lines 753 759) no Hoare annotation was computed. [2022-12-14 07:32:47,359 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 742 765) no Hoare annotation was computed. [2022-12-14 07:32:47,360 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 661) no Hoare annotation was computed. [2022-12-14 07:32:47,360 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-12-14 07:32:47,360 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-12-14 07:32:47,360 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-12-14 07:32:47,360 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-12-14 07:32:47,360 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-12-14 07:32:47,360 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-12-14 07:32:47,360 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2022-12-14 07:32:47,360 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-12-14 07:32:47,360 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-12-14 07:32:47,361 INFO L895 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0))) (let ((.cse5 (= 1 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1)) (.cse6 (not .cse3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse5 .cse2 (<= ~waterLevel~0 2) .cse6) (and .cse0 .cse1 .cse5 .cse2 .cse4 .cse6) (and .cse0 (= 2 ~waterLevel~0) .cse1 .cse2 .cse3)))) [2022-12-14 07:32:47,361 INFO L895 garLoopResultBuilder]: At program point L725(lines 678 727) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= 2 ~waterLevel~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse2 (let ((.cse7 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (not .cse7)) (and .cse7 (= ~pumpRunning~0 1))))) (and .cse0 .cse1 .cse6 .cse2 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3))) [2022-12-14 07:32:47,361 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 694) no Hoare annotation was computed. [2022-12-14 07:32:47,361 INFO L899 garLoopResultBuilder]: For program point L688-1(lines 688 694) no Hoare annotation was computed. [2022-12-14 07:32:47,361 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2022-12-14 07:32:47,361 INFO L895 garLoopResultBuilder]: At program point L957-1(lines 957 963) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (or (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)) (and .cse0 .cse1 (= 1 ~systemActive~0) .cse2)) (= ~waterLevel~0 1)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (<= ~waterLevel~0 2)))) [2022-12-14 07:32:47,362 INFO L895 garLoopResultBuilder]: At program point L140(lines 140 147) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= ~pumpRunning~0 0) (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= 1 |ULTIMATE.start_valid_product_~retValue_acc~13#1|) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 30 (select |#length| 13)) (= 1 ~systemActive~0) (= 30 (select |#length| 10)) (= (select |#valid| 12) 1) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= (select |#valid| 14) 1) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= ~head~0.base 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= ~waterLevel~0 1) (= (select .cse0 0) 48) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_valid_product_~retValue_acc~13#1|) (= (select |#valid| 6) 1) (= (select .cse0 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))) [2022-12-14 07:32:47,362 INFO L902 garLoopResultBuilder]: At program point L140-2(lines 140 147) the Hoare annotation is: true [2022-12-14 07:32:47,362 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 07:32:47,362 INFO L902 garLoopResultBuilder]: At program point L731(lines 668 735) the Hoare annotation is: true [2022-12-14 07:32:47,362 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 704) no Hoare annotation was computed. [2022-12-14 07:32:47,362 INFO L899 garLoopResultBuilder]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2022-12-14 07:32:47,362 INFO L895 garLoopResultBuilder]: At program point L690(line 690) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse5 .cse2 (<= ~waterLevel~0 2) (let ((.cse6 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (not .cse6)) (and .cse6 (= ~pumpRunning~0 1))))) (and .cse0 .cse1 .cse5 .cse2 .cse4) (and .cse0 (= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2022-12-14 07:32:47,362 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (< 1 |old(~waterLevel~0)|) .cse0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= ~waterLevel~0 2) (or .cse0 (= ~methaneLevelCritical~0 0) (not (= |isMethaneLevelCritical_#res| 0))))) [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point L728(lines 677 729) the Hoare annotation is: false [2022-12-14 07:32:47,363 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point L716-2(lines 708 723) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= 2 ~waterLevel~0) .cse1 .cse5 .cse2) (and .cse0 .cse1 .cse5 .cse2 .cse4) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (<= ~waterLevel~0 2) .cse3))) [2022-12-14 07:32:47,363 INFO L899 garLoopResultBuilder]: For program point L679(lines 678 727) no Hoare annotation was computed. [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point L708(lines 708 723) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= 0 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= 2 ~waterLevel~0) .cse1 .cse5 .cse2) (and .cse0 .cse1 .cse5 .cse2 .cse4) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (<= ~waterLevel~0 2) .cse3))) [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point L793(line 793) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2)))) [2022-12-14 07:32:47,363 INFO L899 garLoopResultBuilder]: For program point L793-1(lines 774 798) no Hoare annotation was computed. [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 774 798) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2)))) [2022-12-14 07:32:47,363 INFO L895 garLoopResultBuilder]: At program point L864(line 864) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 1))))) [2022-12-14 07:32:47,364 INFO L895 garLoopResultBuilder]: At program point L864-1(line 864) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#t~ret42#1| ~methaneLevelCritical~0))))) [2022-12-14 07:32:47,364 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 774 798) no Hoare annotation was computed. [2022-12-14 07:32:47,364 INFO L895 garLoopResultBuilder]: At program point L788(line 788) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)) (not (= ~waterLevel~0 1)) .cse0 .cse1) (or .cse0 .cse1 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2)))) [2022-12-14 07:32:47,364 INFO L899 garLoopResultBuilder]: For program point L782(lines 782 790) no Hoare annotation was computed. [2022-12-14 07:32:47,364 INFO L895 garLoopResultBuilder]: At program point L778(lines 778 795) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2)))) [2022-12-14 07:32:47,364 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 174 185) no Hoare annotation was computed. [2022-12-14 07:32:47,364 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 174 185) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (or (let ((.cse3 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse3) (or (not .cse3) (not (= ~pumpRunning~0 1))))) .cse2 .cse4 .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or (let ((.cse6 (not (= 0 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse5 .cse6) (or .cse0 .cse1 .cse6))) .cse4))) [2022-12-14 07:32:47,366 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:32:47,368 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:32:47,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:32:47 BoogieIcfgContainer [2022-12-14 07:32:47,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:32:47,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:32:47,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:32:47,397 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:32:47,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:31:02" (3/4) ... [2022-12-14 07:32:47,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 07:32:47,406 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 07:32:47,411 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-12-14 07:32:47,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 07:32:47,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 07:32:47,413 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:32:47,413 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:32:47,434 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && tmp == 1) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && 1 == retValue_acc) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \result == retValue_acc) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 [2022-12-14 07:32:47,434 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(0 == systemActive)) [2022-12-14 07:32:47,435 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-12-14 07:32:47,435 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || \old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == 1) && waterLevel == 1)) || 2 < \old(waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) [2022-12-14 07:32:47,435 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || waterLevel < 2) [2022-12-14 07:32:47,436 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(tmp == 0))) && ((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || !(0 == systemActive)) || !(tmp == 0))) && ((((!(1 == systemActive) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && waterLevel == 1)) || (((\old(pumpRunning) == 0 && ((tmp == 0 && pumpRunning == 1) || (pumpRunning == 0 && !(tmp == 0)))) && \old(waterLevel) == waterLevel) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(tmp == 0)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(0 == systemActive))) && (((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2022-12-14 07:32:47,436 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (tmp___0 == 0 && !(tmp == 0)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 0 == systemActive) && waterLevel == 1)) || !(0 == systemActive))) && (((((tmp___0 == 0 || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || (tmp___0 == 0 && !(tmp == 0))) || !(0 == systemActive))) && ((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && 0 == systemActive)) || !(\old(waterLevel) == 2)) || !(0 == systemActive))) && (((((!(1 == systemActive) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((tmp == 0 && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && \old(pumpRunning) == 0) && !(methaneLevelCritical == 0)) && \old(waterLevel) == waterLevel) && !(tmp == 0))) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(\old(waterLevel) <= 2)) || (tmp___0 == 0 && !(tmp == 0))) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((tmp == 0 || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-12-14 07:32:47,436 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || waterLevel < 2) || ((pumpRunning == 0 && tmp == 1) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical)) [2022-12-14 07:32:47,437 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-12-14 07:32:47,459 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:32:47,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:32:47,460 INFO L158 Benchmark]: Toolchain (without parser) took 105673.67ms. Allocated memory was 138.4MB in the beginning and 522.2MB in the end (delta: 383.8MB). Free memory was 106.3MB in the beginning and 406.7MB in the end (delta: -300.4MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,460 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:32:47,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.25ms. Allocated memory is still 138.4MB. Free memory was 105.8MB in the beginning and 87.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.21ms. Allocated memory is still 138.4MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,461 INFO L158 Benchmark]: Boogie Preprocessor took 18.64ms. Allocated memory is still 138.4MB. Free memory was 84.9MB in the beginning and 83.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,461 INFO L158 Benchmark]: RCFGBuilder took 451.85ms. Allocated memory is still 138.4MB. Free memory was 83.4MB in the beginning and 58.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,461 INFO L158 Benchmark]: TraceAbstraction took 104756.80ms. Allocated memory was 138.4MB in the beginning and 522.2MB in the end (delta: 383.8MB). Free memory was 57.2MB in the beginning and 413.0MB in the end (delta: -355.8MB). Peak memory consumption was 314.3MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,462 INFO L158 Benchmark]: Witness Printer took 62.64ms. Allocated memory is still 522.2MB. Free memory was 413.0MB in the beginning and 406.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 07:32:47,463 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.25ms. Allocated memory is still 138.4MB. Free memory was 105.8MB in the beginning and 87.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.21ms. Allocated memory is still 138.4MB. Free memory was 87.0MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.64ms. Allocated memory is still 138.4MB. Free memory was 84.9MB in the beginning and 83.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.85ms. Allocated memory is still 138.4MB. Free memory was 83.4MB in the beginning and 58.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 104756.80ms. Allocated memory was 138.4MB in the beginning and 522.2MB in the end (delta: 383.8MB). Free memory was 57.2MB in the beginning and 413.0MB in the end (delta: -355.8MB). Peak memory consumption was 314.3MB. Max. memory is 16.1GB. * Witness Printer took 62.64ms. Allocated memory is still 522.2MB. Free memory was 413.0MB in the beginning and 406.7MB 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: 661]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 104.7s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 39.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5902 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5859 mSDsluCounter, 4956 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4131 mSDsCounter, 4180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10028 IncrementalHoareTripleChecker+Invalid, 14208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4180 mSolverCounterUnsat, 825 mSDtfsCounter, 10028 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1922 GetRequests, 1238 SyntacticMatches, 61 SemanticMatches, 623 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30428 ImplicationChecksByTransitivity, 38.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2941occurred in iteration=11, InterpolantAutomatonStates: 335, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 2892 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 5546 PreInvPairs, 6149 NumberOfFragments, 2457 HoareAnnotationTreeSize, 5546 FomulaSimplifications, 41130 FormulaSimplificationTreeSizeReduction, 17.3s HoareSimplificationTime, 38 FomulaSimplificationsInter, 772488 FormulaSimplificationTreeSizeReductionInter, 21.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 1122 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1589 ConstructedInterpolants, 0 QuantifiedInterpolants, 6692 SizeOfPredicates, 77 NumberOfNonLiveVariables, 2094 ConjunctsInSsa, 197 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 984/1403 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: OVERALL_TIME: 1.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 24, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 23, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 38, TOOLS_QUANTIFIERELIM_TIME: 1.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 62, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 24, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 286, DAG_COMPRESSION_RETAINED_NODES: 94, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 661]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && \valid[15] == 1) && pumpRunning == 0) && \valid[9] == 1) && unknown-#length-unknown[12] == 25) && \valid[11] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && 31 == unknown-#length-unknown[2]) && head == 0) && tmp == 1) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && 1 == retValue_acc) && \valid[3] == 1) && \valid[7] == 1) && 30 == unknown-#length-unknown[13]) && 1 == systemActive) && 30 == unknown-#length-unknown[10]) && \valid[12] == 1) && \valid[4] == 1) && \valid[1] == 1) && unknown-#length-unknown[6] == 21) && \valid[14] == 1) && 9 == unknown-#length-unknown[14]) && \valid[0] == 0) && head == 0) && \valid[2] == 1) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && waterLevel == 1) && unknown-#memory_int-unknown[1][0] == 48) && \result == retValue_acc) && \valid[6] == 1) && unknown-#memory_int-unknown[1][1] == 0) && \valid[10] == 1) && \valid[8] == 1) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0 - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || waterLevel < 2) || ((pumpRunning == 0 && tmp == 1) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical)) - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) || ((((2 == waterLevel && tmp == 1) && 1 == systemActive) && splverifierCounter == 0) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || ((((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && 2 == waterLevel) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 957]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) || (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && splverifierCounter == 0)) && waterLevel == 1) || ((((pumpRunning == 0 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: ((((((((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(tmp == 0))) && ((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || !(0 == systemActive)) || !(tmp == 0))) && ((((!(1 == systemActive) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && waterLevel == 1)) || (((\old(pumpRunning) == 0 && ((tmp == 0 && pumpRunning == 1) || (pumpRunning == 0 && !(tmp == 0)))) && \old(waterLevel) == waterLevel) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(tmp == 0)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) || (pumpRunning == 0 && waterLevel <= \old(waterLevel))) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(0 == systemActive))) && (((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) || (((2 == waterLevel && tmp == 1) && 1 == systemActive) && splverifierCounter == 0)) || ((((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || (((((pumpRunning == 0 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && 0 == systemActive) - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 778]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || waterLevel < 2) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 804]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: ((((((((((((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (tmp___0 == 0 && !(tmp == 0)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 0 == systemActive) && waterLevel == 1)) || !(0 == systemActive))) && (((((tmp___0 == 0 || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || (tmp___0 == 0 && !(tmp == 0))) || !(0 == systemActive))) && ((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && 0 == systemActive)) || !(\old(waterLevel) == 2)) || !(0 == systemActive))) && (((((!(1 == systemActive) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((tmp == 0 && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && \old(pumpRunning) == 0) && !(methaneLevelCritical == 0)) && \old(waterLevel) == waterLevel) && !(tmp == 0))) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(\old(waterLevel) <= 2)) || (tmp___0 == 0 && !(tmp == 0))) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((tmp == 0 || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((tmp == 0 || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 742]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(0 == systemActive)) - InvariantResult [Line: 800]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || \old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == 1) && waterLevel == 1)) || 2 < \old(waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || methaneLevelCritical == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-12-14 07:32:47,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa85197-0f18-4cba-a190-3f93757eb7ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE