./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:54:03,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:54:03,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:54:03,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:54:03,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:54:03,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:54:03,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:54:03,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:54:03,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:54:03,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:54:03,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:54:03,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:54:03,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:54:03,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:54:03,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:54:03,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:54:03,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:54:03,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:54:03,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:54:03,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:54:03,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:54:03,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:54:03,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:54:03,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:54:03,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:54:03,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:54:03,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:54:03,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:54:03,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:54:03,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:54:03,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:54:03,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:54:03,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:54:03,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:54:03,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:54:03,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:54:03,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:54:03,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:54:03,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:54:03,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:54:03,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:54:03,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 01:54:03,578 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:54:03,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:54:03,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:54:03,579 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:54:03,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:54:03,580 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:54:03,580 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:54:03,580 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:54:03,581 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:54:03,581 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:54:03,581 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:54:03,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:54:03,582 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:54:03,582 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:54:03,582 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:54:03,583 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:54:03,583 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:54:03,583 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:54:03,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:54:03,584 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:54:03,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:54:03,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:54:03,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:54:03,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:54:03,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:54:03,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:54:03,586 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:54:03,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:54:03,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:54:03,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:54:03,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:54:03,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:54:03,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:54:03,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:54:03,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:54:03,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:54:03,589 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:54:03,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:54:03,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:54:03,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:54:03,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:54:03,590 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2021-11-23 01:54:03,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:54:03,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:54:03,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:54:03,950 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:54:03,951 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:54:03,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2021-11-23 01:54:04,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/data/d2612e6a1/ca6ded9c49df4a8b9e78fa18c96055f9/FLAG29060685b [2021-11-23 01:54:04,513 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:54:04,522 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2021-11-23 01:54:04,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/data/d2612e6a1/ca6ded9c49df4a8b9e78fa18c96055f9/FLAG29060685b [2021-11-23 01:54:04,845 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/data/d2612e6a1/ca6ded9c49df4a8b9e78fa18c96055f9 [2021-11-23 01:54:04,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:54:04,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:54:04,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:54:04,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:54:04,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:54:04,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:04" (1/1) ... [2021-11-23 01:54:04,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df4bc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:04, skipping insertion in model container [2021-11-23 01:54:04,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:04" (1/1) ... [2021-11-23 01:54:04,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:54:04,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:54:05,132 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2021-11-23 01:54:05,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:54:05,285 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:54:05,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2021-11-23 01:54:05,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:54:05,415 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:54:05,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05 WrapperNode [2021-11-23 01:54:05,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:54:05,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:54:05,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:54:05,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:54:05,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,509 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 273 [2021-11-23 01:54:05,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:54:05,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:54:05,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:54:05,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:54:05,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:54:05,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:54:05,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:54:05,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:54:05,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2021-11-23 01:54:05,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:54:05,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:54:05,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:54:05,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:54:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:54:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 01:54:05,644 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 01:54:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 01:54:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 01:54:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 01:54:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 01:54:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 01:54:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 01:54:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 01:54:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 01:54:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 01:54:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 01:54:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 01:54:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 01:54:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 01:54:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 01:54:05,646 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 01:54:05,646 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 01:54:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:54:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 01:54:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 01:54:05,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:54:05,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:54:05,721 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:54:05,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:54:06,131 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:54:06,210 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:54:06,210 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:54:06,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:06 BoogieIcfgContainer [2021-11-23 01:54:06,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:54:06,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:54:06,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:54:06,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:54:06,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:54:04" (1/3) ... [2021-11-23 01:54:06,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91c9a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:06, skipping insertion in model container [2021-11-23 01:54:06,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (2/3) ... [2021-11-23 01:54:06,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91c9a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:06, skipping insertion in model container [2021-11-23 01:54:06,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:06" (3/3) ... [2021-11-23 01:54:06,238 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2021-11-23 01:54:06,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:54:06,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:54:06,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:54:06,334 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:54:06,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:54:06,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-23 01:54:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:54:06,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:06,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:06,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:06,369 INFO L85 PathProgramCache]: Analyzing trace with hash -831846055, now seen corresponding path program 1 times [2021-11-23 01:54:06,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:06,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633188298] [2021-11-23 01:54:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:06,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:54:06,570 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:06,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633188298] [2021-11-23 01:54:06,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633188298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:54:06,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:54:06,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:54:06,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097689172] [2021-11-23 01:54:06,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:54:06,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 01:54:06,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:54:06,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 01:54:06,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:54:06,617 INFO L87 Difference]: Start difference. First operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) 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) [2021-11-23 01:54:06,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:06,724 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2021-11-23 01:54:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 01:54:06,727 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 [2021-11-23 01:54:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:06,739 INFO L225 Difference]: With dead ends: 156 [2021-11-23 01:54:06,739 INFO L226 Difference]: Without dead ends: 74 [2021-11-23 01:54:06,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:54:06,753 INFO L933 BasicCegarLoop]: 85 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, 85 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 [2021-11-23 01:54:06,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:54:06,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-23 01:54:06,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-23 01:54:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-23 01:54:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 97 transitions. [2021-11-23 01:54:06,830 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 97 transitions. Word has length 16 [2021-11-23 01:54:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:06,832 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 97 transitions. [2021-11-23 01:54:06,832 INFO L471 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) [2021-11-23 01:54:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2021-11-23 01:54:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:54:06,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:06,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:06,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:54:06,838 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash -335547087, now seen corresponding path program 1 times [2021-11-23 01:54:06,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:06,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240563852] [2021-11-23 01:54:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:06,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:54:06,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:06,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240563852] [2021-11-23 01:54:06,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240563852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:54:06,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:54:06,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:54:06,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831771796] [2021-11-23 01:54:06,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:54:06,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:54:06,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:54:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:54:06,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:54:06,992 INFO L87 Difference]: Start difference. First operand 74 states and 97 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) [2021-11-23 01:54:07,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:07,092 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2021-11-23 01:54:07,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:54:07,094 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 [2021-11-23 01:54:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:07,099 INFO L225 Difference]: With dead ends: 120 [2021-11-23 01:54:07,100 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 01:54:07,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:54:07,104 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 14 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:54:07,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 125 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:54:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 01:54:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-23 01:54:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.35) internal successors, (54), 50 states have internal predecessors, (54), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 01:54:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2021-11-23 01:54:07,126 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2021-11-23 01:54:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:07,127 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2021-11-23 01:54:07,128 INFO L471 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) [2021-11-23 01:54:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2021-11-23 01:54:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:54:07,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:07,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:07,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:54:07,134 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:07,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:07,135 INFO L85 PathProgramCache]: Analyzing trace with hash -963223982, now seen corresponding path program 1 times [2021-11-23 01:54:07,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:07,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893918439] [2021-11-23 01:54:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:07,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:54:07,215 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:07,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893918439] [2021-11-23 01:54:07,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893918439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:54:07,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:54:07,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:54:07,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683095304] [2021-11-23 01:54:07,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:54:07,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:54:07,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:54:07,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:54:07,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:54:07,218 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:54:07,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:07,336 INFO L93 Difference]: Finished difference Result 194 states and 255 transitions. [2021-11-23 01:54:07,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:54:07,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-23 01:54:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:07,341 INFO L225 Difference]: With dead ends: 194 [2021-11-23 01:54:07,343 INFO L226 Difference]: Without dead ends: 130 [2021-11-23 01:54:07,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:54:07,347 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 73 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:54:07,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 164 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:54:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-23 01:54:07,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2021-11-23 01:54:07,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.355263157894737) internal successors, (103), 95 states have internal predecessors, (103), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-23 01:54:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2021-11-23 01:54:07,377 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 20 [2021-11-23 01:54:07,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:07,377 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2021-11-23 01:54:07,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 01:54:07,378 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2021-11-23 01:54:07,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:54:07,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:07,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:07,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:54:07,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:07,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:07,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1867410973, now seen corresponding path program 1 times [2021-11-23 01:54:07,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:07,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769628481] [2021-11-23 01:54:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:07,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:54:07,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:07,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769628481] [2021-11-23 01:54:07,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769628481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:54:07,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:54:07,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:54:07,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595008409] [2021-11-23 01:54:07,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:54:07,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:54:07,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:54:07,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:54:07,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:54:07,473 INFO L87 Difference]: Start difference. First operand 127 states and 167 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) [2021-11-23 01:54:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:07,686 INFO L93 Difference]: Finished difference Result 375 states and 498 transitions. [2021-11-23 01:54:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 01:54:07,687 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 [2021-11-23 01:54:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:07,700 INFO L225 Difference]: With dead ends: 375 [2021-11-23 01:54:07,700 INFO L226 Difference]: Without dead ends: 250 [2021-11-23 01:54:07,704 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:54:07,709 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 63 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:54:07,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 373 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:54:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-23 01:54:07,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2021-11-23 01:54:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 180 states have internal predecessors, (195), 62 states have call successors, (62), 34 states have call predecessors, (62), 34 states have return successors, (62), 40 states have call predecessors, (62), 62 states have call successors, (62) [2021-11-23 01:54:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 319 transitions. [2021-11-23 01:54:07,771 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 319 transitions. Word has length 23 [2021-11-23 01:54:07,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:07,772 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 319 transitions. [2021-11-23 01:54:07,772 INFO L471 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) [2021-11-23 01:54:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 319 transitions. [2021-11-23 01:54:07,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:54:07,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:07,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:07,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:54:07,776 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:07,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:07,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2051363639, now seen corresponding path program 1 times [2021-11-23 01:54:07,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:07,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504807576] [2021-11-23 01:54:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:07,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:07,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:54:07,894 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:07,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504807576] [2021-11-23 01:54:07,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504807576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:54:07,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:54:07,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:54:07,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069817877] [2021-11-23 01:54:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:54:07,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:54:07,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:54:07,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:54:07,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:54:07,902 INFO L87 Difference]: Start difference. First operand 242 states and 319 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) [2021-11-23 01:54:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:08,032 INFO L93 Difference]: Finished difference Result 654 states and 882 transitions. [2021-11-23 01:54:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:54:08,033 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 [2021-11-23 01:54:08,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:08,037 INFO L225 Difference]: With dead ends: 654 [2021-11-23 01:54:08,038 INFO L226 Difference]: Without dead ends: 414 [2021-11-23 01:54:08,039 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:54:08,043 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:54:08,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 211 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:54:08,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-23 01:54:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 404. [2021-11-23 01:54:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 288 states have internal predecessors, (329), 80 states have call successors, (80), 64 states have call predecessors, (80), 64 states have return successors, (104), 70 states have call predecessors, (104), 80 states have call successors, (104) [2021-11-23 01:54:08,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 513 transitions. [2021-11-23 01:54:08,134 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 513 transitions. Word has length 26 [2021-11-23 01:54:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:08,135 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 513 transitions. [2021-11-23 01:54:08,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:54:08,135 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 513 transitions. [2021-11-23 01:54:08,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 01:54:08,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:08,138 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:08,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:54:08,138 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash -288960498, now seen corresponding path program 1 times [2021-11-23 01:54:08,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:08,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323975117] [2021-11-23 01:54:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:08,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:54:08,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:08,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323975117] [2021-11-23 01:54:08,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323975117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:54:08,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:54:08,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:54:08,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661837003] [2021-11-23 01:54:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:54:08,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:54:08,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:54:08,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:54:08,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:54:08,251 INFO L87 Difference]: Start difference. First operand 404 states and 513 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-23 01:54:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:08,499 INFO L93 Difference]: Finished difference Result 1146 states and 1451 transitions. [2021-11-23 01:54:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 01:54:08,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2021-11-23 01:54:08,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:08,506 INFO L225 Difference]: With dead ends: 1146 [2021-11-23 01:54:08,506 INFO L226 Difference]: Without dead ends: 744 [2021-11-23 01:54:08,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-23 01:54:08,509 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 127 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:54:08,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 300 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 01:54:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-11-23 01:54:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 676. [2021-11-23 01:54:08,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 447 states have (on average 1.250559284116331) internal successors, (559), 482 states have internal predecessors, (559), 114 states have call successors, (114), 102 states have call predecessors, (114), 114 states have return successors, (150), 114 states have call predecessors, (150), 114 states have call successors, (150) [2021-11-23 01:54:08,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 823 transitions. [2021-11-23 01:54:08,592 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 823 transitions. Word has length 44 [2021-11-23 01:54:08,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:08,593 INFO L470 AbstractCegarLoop]: Abstraction has 676 states and 823 transitions. [2021-11-23 01:54:08,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-23 01:54:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 823 transitions. [2021-11-23 01:54:08,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 01:54:08,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:08,596 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:08,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:54:08,596 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:08,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:08,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1730431963, now seen corresponding path program 1 times [2021-11-23 01:54:08,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:08,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195544193] [2021-11-23 01:54:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:08,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:08,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:54:08,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:08,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195544193] [2021-11-23 01:54:08,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195544193] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:54:08,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132987181] [2021-11-23 01:54:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:08,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:54:08,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:54:08,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:54:08,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 01:54:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:09,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 01:54:09,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:54:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:54:09,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:54:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:54:10,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132987181] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 01:54:10,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1716244744] [2021-11-23 01:54:10,506 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2021-11-23 01:54:10,506 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 01:54:10,514 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 01:54:10,519 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 01:54:10,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 01:54:15,160 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2021-11-23 01:54:15,219 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 316 for LOIs [2021-11-23 01:54:17,316 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 311 for LOIs [2021-11-23 01:54:18,757 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 311 for LOIs [2021-11-23 01:54:20,468 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 312 for LOIs [2021-11-23 01:54:21,415 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 27 for LOIs [2021-11-23 01:54:21,418 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 292 for LOIs [2021-11-23 01:54:21,454 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 01:55:06,352 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6786#(and (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 0)) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1|) (<= ~pumpRunning~0 1) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| ~methaneLevelCritical~0) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~1#1|) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~1#1|) (= ~methaneLevelCritical~0 1) (<= 2 |old(~waterLevel~0)|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 01:55:06,353 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 01:55:06,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 01:55:06,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2021-11-23 01:55:06,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423287188] [2021-11-23 01:55:06,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 01:55:06,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-23 01:55:06,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:06,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-23 01:55:06,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=3341, Unknown=0, NotChecked=0, Total=3782 [2021-11-23 01:55:06,357 INFO L87 Difference]: Start difference. First operand 676 states and 823 transitions. Second operand has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-23 01:55:14,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:14,197 INFO L93 Difference]: Finished difference Result 2785 states and 3784 transitions. [2021-11-23 01:55:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-23 01:55:14,198 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) Word has length 47 [2021-11-23 01:55:14,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:14,219 INFO L225 Difference]: With dead ends: 2785 [2021-11-23 01:55:14,219 INFO L226 Difference]: Without dead ends: 1970 [2021-11-23 01:55:14,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 111 SyntacticMatches, 7 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8675 ImplicationChecksByTransitivity, 49.4s TimeCoverageRelationStatistics Valid=2517, Invalid=20435, Unknown=0, NotChecked=0, Total=22952 [2021-11-23 01:55:14,234 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 1498 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 5526 mSolverCounterSat, 1057 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 6583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1057 IncrementalHoareTripleChecker+Valid, 5526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-23 01:55:14,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 1546 Invalid, 6583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1057 Valid, 5526 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-23 01:55:14,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2021-11-23 01:55:14,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1295. [2021-11-23 01:55:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 868 states have (on average 1.2131336405529953) internal successors, (1053), 923 states have internal predecessors, (1053), 207 states have call successors, (207), 176 states have call predecessors, (207), 219 states have return successors, (285), 229 states have call predecessors, (285), 207 states have call successors, (285) [2021-11-23 01:55:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1545 transitions. [2021-11-23 01:55:14,377 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1545 transitions. Word has length 47 [2021-11-23 01:55:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:14,378 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 1545 transitions. [2021-11-23 01:55:14,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2021-11-23 01:55:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1545 transitions. [2021-11-23 01:55:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-23 01:55:14,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:55:14,387 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:55:14,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 01:55:14,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:55:14,603 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:55:14,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:55:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash 85530319, now seen corresponding path program 1 times [2021-11-23 01:55:14,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:55:14,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756046687] [2021-11-23 01:55:14,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:55:14,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:55:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:55:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-23 01:55:14,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:55:14,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756046687] [2021-11-23 01:55:14,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756046687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:55:14,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:55:14,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 01:55:14,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934287154] [2021-11-23 01:55:14,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:55:14,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 01:55:14,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:14,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 01:55:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-23 01:55:14,760 INFO L87 Difference]: Start difference. First operand 1295 states and 1545 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:55:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:15,207 INFO L93 Difference]: Finished difference Result 2608 states and 3183 transitions. [2021-11-23 01:55:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 01:55:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2021-11-23 01:55:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:15,217 INFO L225 Difference]: With dead ends: 2608 [2021-11-23 01:55:15,218 INFO L226 Difference]: Without dead ends: 1578 [2021-11-23 01:55:15,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-11-23 01:55:15,222 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 77 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:55:15,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 555 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 01:55:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2021-11-23 01:55:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1540. [2021-11-23 01:55:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1032 states have (on average 1.2005813953488371) internal successors, (1239), 1096 states have internal predecessors, (1239), 246 states have call successors, (246), 215 states have call predecessors, (246), 261 states have return successors, (333), 268 states have call predecessors, (333), 246 states have call successors, (333) [2021-11-23 01:55:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1818 transitions. [2021-11-23 01:55:15,334 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1818 transitions. Word has length 90 [2021-11-23 01:55:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:15,335 INFO L470 AbstractCegarLoop]: Abstraction has 1540 states and 1818 transitions. [2021-11-23 01:55:15,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-23 01:55:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1818 transitions. [2021-11-23 01:55:15,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 01:55:15,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:55:15,340 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2021-11-23 01:55:15,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 01:55:15,341 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:55:15,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:55:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash -666994552, now seen corresponding path program 1 times [2021-11-23 01:55:15,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:55:15,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191079060] [2021-11-23 01:55:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:55:15,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:55:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:55:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-23 01:55:15,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:55:15,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191079060] [2021-11-23 01:55:15,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191079060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:55:15,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:55:15,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:55:15,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984154501] [2021-11-23 01:55:15,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:55:15,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:55:15,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:55:15,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:55:15,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:55:15,399 INFO L87 Difference]: Start difference. First operand 1540 states and 1818 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 01:55:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:55:15,536 INFO L93 Difference]: Finished difference Result 1734 states and 2063 transitions. [2021-11-23 01:55:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:55:15,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 89 [2021-11-23 01:55:15,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:55:15,537 INFO L225 Difference]: With dead ends: 1734 [2021-11-23 01:55:15,537 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 01:55:15,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:55:15,544 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 95 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:55:15,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 142 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:55:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 01:55:15,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 01:55:15,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:55:15,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 01:55:15,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2021-11-23 01:55:15,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:55:15,547 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 01:55:15,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 01:55:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 01:55:15,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:55:15,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 01:55:15,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 01:55:15,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 01:55:21,449 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= 1 ~systemActive~0))) (or .cse0 (not (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0)))) [2021-11-23 01:55:21,449 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2021-11-23 01:55:21,449 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2021-11-23 01:55:21,449 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2021-11-23 01:55:21,450 INFO L854 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2021-11-23 01:55:21,450 INFO L854 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2021-11-23 01:55:21,450 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2021-11-23 01:55:21,450 INFO L854 garLoopResultBuilder]: At program point L127(lines 127 144) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2021-11-23 01:55:21,450 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2021-11-23 01:55:21,451 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse0))) [2021-11-23 01:55:21,451 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2021-11-23 01:55:21,451 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2021-11-23 01:55:21,451 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 914 925) the Hoare annotation is: (let ((.cse2 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 .cse1) (or .cse2 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse0 .cse1))) [2021-11-23 01:55:21,451 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 914 925) no Hoare annotation was computed. [2021-11-23 01:55:21,451 INFO L861 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: true [2021-11-23 01:55:21,452 INFO L858 garLoopResultBuilder]: For program point L769-1(line 769) no Hoare annotation was computed. [2021-11-23 01:55:21,452 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 763 792) no Hoare annotation was computed. [2021-11-23 01:55:21,452 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 763 792) the Hoare annotation is: true [2021-11-23 01:55:21,452 INFO L861 garLoopResultBuilder]: At program point L788(lines 763 792) the Hoare annotation is: true [2021-11-23 01:55:21,452 INFO L858 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2021-11-23 01:55:21,452 INFO L858 garLoopResultBuilder]: For program point L777(lines 777 781) no Hoare annotation was computed. [2021-11-23 01:55:21,453 INFO L861 garLoopResultBuilder]: At program point L777-1(lines 777 781) the Hoare annotation is: true [2021-11-23 01:55:21,453 INFO L861 garLoopResultBuilder]: At program point L773-2(lines 773 787) the Hoare annotation is: true [2021-11-23 01:55:21,453 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 926 934) the Hoare annotation is: true [2021-11-23 01:55:21,453 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 926 934) no Hoare annotation was computed. [2021-11-23 01:55:21,453 INFO L854 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0))) (or .cse1 .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (not (= 0 ~systemActive~0))))) [2021-11-23 01:55:21,453 INFO L854 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2021-11-23 01:55:21,454 INFO L858 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2021-11-23 01:55:21,454 INFO L854 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2021-11-23 01:55:21,454 INFO L854 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) .cse2 (and .cse3 .cse0) (and .cse4 (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1)) (and .cse3 .cse1 .cse4))) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse2 (= ~waterLevel~0 1)) (or .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1))) (or .cse5 (not (= 0 ~systemActive~0))))) [2021-11-23 01:55:21,454 INFO L854 garLoopResultBuilder]: At program point L391(line 391) the Hoare annotation is: (and (not (= 1 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2021-11-23 01:55:21,454 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2021-11-23 01:55:21,455 INFO L854 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse5 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse6 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= ~methaneLevelCritical~0 0))) (or (and .cse1 .cse5) .cse6 (and .cse7 .cse1) (and .cse8 (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1)) (and .cse7 .cse5 .cse8))) (or .cse0 .cse3 .cse6 .cse4) (or .cse5 .cse6 (not (= |old(~pumpRunning~0)| 1))))) [2021-11-23 01:55:21,455 INFO L858 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2021-11-23 01:55:21,455 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2021-11-23 01:55:21,455 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2021-11-23 01:55:21,455 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 1 ~systemActive~0))) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1) (or .cse0 .cse2 .cse3 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse2 .cse4 .cse3))) [2021-11-23 01:55:21,455 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2021-11-23 01:55:21,456 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2021-11-23 01:55:21,456 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2021-11-23 01:55:21,456 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-11-23 01:55:21,456 INFO L854 garLoopResultBuilder]: At program point L869(lines 869 882) the Hoare annotation is: (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (.cse9 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse9)) (.cse4 (= ~pumpRunning~0 0)) (.cse10 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse8 (not .cse0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse3 .cse0 .cse2 .cse5) (or .cse3 .cse6 .cse7 .cse5) (or .cse8 .cse1 (and (or .cse3 .cse9) (or .cse2 (not (= |old(~pumpRunning~0)| 1)))) (and .cse10 .cse9)) (let ((.cse11 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse4 .cse10) .cse1 (and .cse11 .cse4) (and .cse9 (<= 2 ~waterLevel~0) (= ~pumpRunning~0 1)) (and .cse11 .cse10 .cse9))) (or .cse3 .cse8 .cse9 .cse5) (or .cse3 .cse6 .cse1 .cse7)))) [2021-11-23 01:55:21,457 INFO L854 garLoopResultBuilder]: At program point L869-1(lines 861 885) the Hoare annotation is: (let ((.cse15 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse13 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse12 (= 1 ~systemActive~0)) (.cse8 (= ~methaneLevelCritical~0 0)) (.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0))) (let ((.cse5 (not (= 0 ~systemActive~0))) (.cse11 (and (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 1)) (not .cse0) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 0))) (.cse2 (not .cse8)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse7 (= ~waterLevel~0 1)) (.cse1 (not .cse12)) (.cse9 (and .cse4 .cse13 .cse12)) (.cse10 (and .cse15 .cse4 .cse12)) (.cse14 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse3 .cse0 .cse2 .cse5) (or .cse3 .cse6 .cse7 .cse5) (or .cse8 .cse1 .cse9 .cse10) (or .cse3 .cse8 .cse11 .cse5) (or .cse1 (and .cse4 .cse8 .cse12) .cse11 (and (or .cse3 .cse8) (or .cse2 (not (= |old(~pumpRunning~0)| 1)))) (and .cse13 .cse14)) (or .cse3 .cse6 .cse1 .cse7) (or .cse1 (and .cse15 .cse13) .cse9 .cse10 (and (<= 2 ~waterLevel~0) .cse14))))) [2021-11-23 01:55:21,457 INFO L854 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methaneLevelCritical~0 0))) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2021-11-23 01:55:21,457 INFO L854 garLoopResultBuilder]: At program point L378(lines 329 379) the Hoare annotation is: false [2021-11-23 01:55:21,457 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 372) no Hoare annotation was computed. [2021-11-23 01:55:21,457 INFO L854 garLoopResultBuilder]: At program point L366-2(lines 360 373) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2021-11-23 01:55:21,457 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 356) no Hoare annotation was computed. [2021-11-23 01:55:21,458 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 01:55:21,458 INFO L858 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2021-11-23 01:55:21,458 INFO L854 garLoopResultBuilder]: At program point L375(lines 330 377) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2021-11-23 01:55:21,458 INFO L854 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2021-11-23 01:55:21,458 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2021-11-23 01:55:21,458 INFO L854 garLoopResultBuilder]: At program point L305-1(lines 305 311) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-23 01:55:21,459 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 01:55:21,459 INFO L854 garLoopResultBuilder]: At program point L847(lines 847 854) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-23 01:55:21,459 INFO L861 garLoopResultBuilder]: At program point L847-2(lines 847 854) the Hoare annotation is: true [2021-11-23 01:55:21,459 INFO L858 garLoopResultBuilder]: For program point L331(lines 330 377) no Hoare annotation was computed. [2021-11-23 01:55:21,459 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 373) no Hoare annotation was computed. [2021-11-23 01:55:21,459 INFO L854 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2021-11-23 01:55:21,460 INFO L861 garLoopResultBuilder]: At program point L381(lines 320 385) the Hoare annotation is: true [2021-11-23 01:55:21,460 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 346) no Hoare annotation was computed. [2021-11-23 01:55:21,460 INFO L858 garLoopResultBuilder]: For program point L340-1(lines 340 346) no Hoare annotation was computed. [2021-11-23 01:55:21,460 INFO L854 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (let ((.cse6 (= |isMethaneLevelCritical_#res| 0)) (.cse7 (not (= ~pumpRunning~0 0))) (.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (or .cse7 .cse5 (not (= |isMethaneAlarm_#t~ret8| 0)))) (.cse1 (or .cse7 .cse5 (not (= |isMethaneAlarm_#res| 0)))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (or .cse7 .cse5 (not .cse6)))) (or (and (let ((.cse2 (<= 2 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (or (and (<= ~pumpRunning~0 0) (< 0 (+ ~pumpRunning~0 1))) (not .cse5) .cse6)) (and .cse2 .cse3 (= ~pumpRunning~0 1)))) (not (= 0 ~systemActive~0))) (and .cse0 .cse1 (= 1 ~systemActive~0) .cse3 .cse4)))) [2021-11-23 01:55:21,460 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2021-11-23 01:55:21,460 INFO L854 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2021-11-23 01:55:21,461 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2021-11-23 01:55:21,461 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2021-11-23 01:55:21,461 INFO L854 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (<= 2 ~waterLevel~0))))) [2021-11-23 01:55:21,461 INFO L854 garLoopResultBuilder]: At program point L187-1(line 187) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret7#1| ~methaneLevelCritical~0) (<= 2 ~waterLevel~0)) .cse0))) [2021-11-23 01:55:21,461 INFO L854 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)))))) [2021-11-23 01:55:21,461 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2021-11-23 01:55:21,462 INFO L854 garLoopResultBuilder]: At program point L101(lines 101 118) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2021-11-23 01:55:21,462 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 902 913) no Hoare annotation was computed. [2021-11-23 01:55:21,462 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 902 913) the Hoare annotation is: (or (let ((.cse0 (= ~methaneLevelCritical~0 0))) (and (or (not (= ~pumpRunning~0 0)) .cse0) (or (not .cse0) (not (= ~pumpRunning~0 1))))) (not (= 1 ~systemActive~0)) (<= 2 ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) [2021-11-23 01:55:21,462 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2021-11-23 01:55:21,462 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2021-11-23 01:55:21,462 INFO L861 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2021-11-23 01:55:21,463 INFO L858 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2021-11-23 01:55:21,466 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:55:21,468 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 01:55:21,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:55:21 BoogieIcfgContainer [2021-11-23 01:55:21,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 01:55:21,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:55:21,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:55:21,494 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:55:21,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:06" (3/4) ... [2021-11-23 01:55:21,497 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:55:21,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 01:55:21,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 01:55:21,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 01:55:21,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 01:55:21,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 01:55:21,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 01:55:21,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 01:55:21,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 01:55:21,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-23 01:55:21,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-23 01:55:21,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2021-11-23 01:55:21,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 01:55:21,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 01:55:21,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:55:21,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 01:55:21,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:55:21,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:55:21,543 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) [2021-11-23 01:55:21,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-23 01:55:21,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2021-11-23 01:55:21,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(tmp == 0) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || (tmp == methaneLevelCritical && methaneLevelCritical == 0))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) [2021-11-23 01:55:21,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2021-11-23 01:55:21,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((methaneLevelCritical == 0 || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && 1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) || !(0 == systemActive))) && ((((!(1 == systemActive) || ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive)) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || (tmp == methaneLevelCritical && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && 1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive)) || (2 <= waterLevel && pumpRunning == 1)) [2021-11-23 01:55:21,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && aux-isMethaneAlarm()-aux == methaneLevelCritical) && 2 <= waterLevel)) || !(1 == systemActive)) [2021-11-23 01:55:21,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-23 01:55:21,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 01:55:21,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:55:21,587 INFO L158 Benchmark]: Toolchain (without parser) took 76739.05ms. Allocated memory was 94.4MB in the beginning and 367.0MB in the end (delta: 272.6MB). Free memory was 53.2MB in the beginning and 166.6MB in the end (delta: -113.4MB). Peak memory consumption was 162.0MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,587 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 71.1MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:55:21,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.64ms. Allocated memory was 94.4MB in the beginning and 132.1MB in the end (delta: 37.7MB). Free memory was 53.0MB in the beginning and 96.4MB in the end (delta: -43.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.04ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,588 INFO L158 Benchmark]: Boogie Preprocessor took 53.94ms. Allocated memory is still 132.1MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,589 INFO L158 Benchmark]: RCFGBuilder took 647.85ms. Allocated memory is still 132.1MB. Free memory was 91.7MB in the beginning and 69.1MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,589 INFO L158 Benchmark]: TraceAbstraction took 75278.36ms. Allocated memory was 132.1MB in the beginning and 367.0MB in the end (delta: 234.9MB). Free memory was 68.6MB in the beginning and 172.9MB in the end (delta: -104.2MB). Peak memory consumption was 189.5MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,590 INFO L158 Benchmark]: Witness Printer took 92.97ms. Allocated memory is still 367.0MB. Free memory was 172.9MB in the beginning and 166.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:55:21,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 71.2MB in the beginning and 71.1MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.64ms. Allocated memory was 94.4MB in the beginning and 132.1MB in the end (delta: 37.7MB). Free memory was 53.0MB in the beginning and 96.4MB in the end (delta: -43.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.04ms. Allocated memory is still 132.1MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.94ms. Allocated memory is still 132.1MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 647.85ms. Allocated memory is still 132.1MB. Free memory was 91.7MB in the beginning and 69.1MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 75278.36ms. Allocated memory was 132.1MB in the beginning and 367.0MB in the end (delta: 234.9MB). Free memory was 68.6MB in the beginning and 172.9MB in the end (delta: -104.2MB). Peak memory consumption was 189.5MB. Max. memory is 16.1GB. * Witness Printer took 92.97ms. Allocated memory is still 367.0MB. Free memory was 172.9MB in the beginning and 166.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 391]: 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 11 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.1s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2016 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1996 mSDsluCounter, 3501 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3089 mSDsCounter, 1115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6458 IncrementalHoareTripleChecker+Invalid, 7573 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1115 mSolverCounterUnsat, 873 mSDtfsCounter, 6458 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 131 SyntacticMatches, 7 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8720 ImplicationChecksByTransitivity, 49.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1540occurred in iteration=8, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 802 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 2342 PreInvPairs, 2609 NumberOfFragments, 1407 HoareAnnotationTreeSize, 2342 FomulaSimplifications, 8328 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 44 FomulaSimplificationsInter, 34570 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 419 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 1315 SizeOfPredicates, 11 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 103/107 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: ((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(tmp == 0) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || (tmp == methaneLevelCritical && methaneLevelCritical == 0))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((methaneLevelCritical == 0 || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && 1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) || !(0 == systemActive))) && ((((!(1 == systemActive) || ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive)) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || (tmp == methaneLevelCritical && pumpRunning == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && 1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive)) || (2 <= waterLevel && pumpRunning == 1)) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && aux-isMethaneAlarm()-aux == methaneLevelCritical) && 2 <= waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 01:55:21,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5f7d1f-c50f-4848-880c-b6e23914793e/bin/utaipan-EQgc7hIp5V/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