./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e05f070a9d08445f8047170ff42067dbbb0e8df76d1f1098124b2282ee971e1d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 16:11:15,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:11:15,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:11:15,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:11:15,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:11:15,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:11:15,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:11:15,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:11:15,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:11:15,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:11:15,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:11:15,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:11:15,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:11:15,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:11:15,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:11:15,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:11:15,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:11:15,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:11:15,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:11:15,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:11:15,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:11:15,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:11:15,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:11:15,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:11:15,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:11:15,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:11:15,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:11:15,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:11:15,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:11:15,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:11:15,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:11:15,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:11:15,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:11:15,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:11:15,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:11:15,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:11:15,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:11:15,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:11:15,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:11:15,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:11:15,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:11:15,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 16:11:15,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:11:15,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:11:15,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:11:15,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:11:15,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:11:15,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:11:15,661 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:11:15,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:11:15,662 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:11:15,662 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:11:15,662 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:11:15,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:11:15,663 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:11:15,663 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:11:15,663 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:11:15,664 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:11:15,664 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:11:15,664 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:11:15,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:11:15,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:11:15,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:11:15,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:11:15,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:11:15,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:11:15,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:11:15,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:11:15,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:11:15,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:11:15,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:11:15,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:11:15,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:11:15,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:11:15,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:11:15,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:11:15,669 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:11:15,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:11:15,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:11:15,669 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:11:15,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:11:15,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:11:15,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:11:15,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e05f070a9d08445f8047170ff42067dbbb0e8df76d1f1098124b2282ee971e1d [2022-11-16 16:11:15,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:11:15,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:11:15,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:11:15,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:11:15,939 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:11:15,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/minepump_spec2_product04.cil.c [2022-11-16 16:11:16,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/data/e761116cb/77b105dd4b994deabaeea5bac6522f07/FLAGfed2a4cd5 [2022-11-16 16:11:16,497 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:11:16,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/sv-benchmarks/c/product-lines/minepump_spec2_product04.cil.c [2022-11-16 16:11:16,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/data/e761116cb/77b105dd4b994deabaeea5bac6522f07/FLAGfed2a4cd5 [2022-11-16 16:11:16,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/data/e761116cb/77b105dd4b994deabaeea5bac6522f07 [2022-11-16 16:11:16,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:11:16,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:11:16,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:11:16,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:11:16,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:11:16,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:11:16" (1/1) ... [2022-11-16 16:11:16,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774df5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:16, skipping insertion in model container [2022-11-16 16:11:16,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:11:16" (1/1) ... [2022-11-16 16:11:16,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:11:16,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:11:17,176 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/sv-benchmarks/c/product-lines/minepump_spec2_product04.cil.c[15732,15745] [2022-11-16 16:11:17,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:11:17,198 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:11:17,310 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/sv-benchmarks/c/product-lines/minepump_spec2_product04.cil.c[15732,15745] [2022-11-16 16:11:17,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:11:17,343 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:11:17,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17 WrapperNode [2022-11-16 16:11:17,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:11:17,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:11:17,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:11:17,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:11:17,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,408 INFO L138 Inliner]: procedures = 52, calls = 148, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 198 [2022-11-16 16:11:17,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:11:17,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:11:17,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:11:17,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:11:17,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:11:17,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:11:17,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:11:17,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:11:17,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (1/1) ... [2022-11-16 16:11:17,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:11:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:11:17,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:11:17,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:11:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:11:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-16 16:11:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-16 16:11:17,584 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 16:11:17,584 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 16:11:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 16:11:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 16:11:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 16:11:17,585 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 16:11:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:11:17,585 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 16:11:17,586 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 16:11:17,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:11:17,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:11:17,693 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:11:17,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:11:18,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:11:18,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:11:18,254 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 16:11:18,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:11:18 BoogieIcfgContainer [2022-11-16 16:11:18,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:11:18,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:11:18,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:11:18,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:11:18,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:11:16" (1/3) ... [2022-11-16 16:11:18,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bc0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:11:18, skipping insertion in model container [2022-11-16 16:11:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:17" (2/3) ... [2022-11-16 16:11:18,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bc0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:11:18, skipping insertion in model container [2022-11-16 16:11:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:11:18" (3/3) ... [2022-11-16 16:11:18,271 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product04.cil.c [2022-11-16 16:11:18,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:11:18,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:11:18,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:11:18,376 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78befcb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:11:18,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:11:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 16:11:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 16:11:18,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:11:18,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:11:18,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:11:18,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:11:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1252618274, now seen corresponding path program 1 times [2022-11-16 16:11:18,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:11:18,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023472903] [2022-11-16 16:11:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:11:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:11:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:11:18,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023472903] [2022-11-16 16:11:18,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023472903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:11:18,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:11:18,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:11:18,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721971054] [2022-11-16 16:11:18,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:11:18,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:11:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:11:18,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:11:18,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:11:18,679 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:11:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:11:18,753 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-16 16:11:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:11:18,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-11-16 16:11:18,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:11:18,763 INFO L225 Difference]: With dead ends: 78 [2022-11-16 16:11:18,763 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 16:11:18,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:11:18,770 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:11:18,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:11:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 16:11:18,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-16 16:11:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 16:11:18,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-16 16:11:18,809 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2022-11-16 16:11:18,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:11:18,810 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-16 16:11:18,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:11:18,810 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-16 16:11:18,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 16:11:18,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:11:18,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:11:18,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:11:18,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:11:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:11:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1449221359, now seen corresponding path program 1 times [2022-11-16 16:11:18,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:11:18,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142589123] [2022-11-16 16:11:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:11:18,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:11:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:11:18,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:18,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142589123] [2022-11-16 16:11:18,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142589123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:11:18,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:11:18,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:11:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498037987] [2022-11-16 16:11:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:11:18,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:11:18,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:11:18,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:11:18,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:11:18,968 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:11:19,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:11:19,033 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-16 16:11:19,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:11:19,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-16 16:11:19,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:11:19,035 INFO L225 Difference]: With dead ends: 47 [2022-11-16 16:11:19,035 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 16:11:19,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:11:19,037 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:11:19,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:11:19,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 16:11:19,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 16:11:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-16 16:11:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-16 16:11:19,044 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-16 16:11:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:11:19,044 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-16 16:11:19,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:11:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-16 16:11:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 16:11:19,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:11:19,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:11:19,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:11:19,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:11:19,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:11:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash -826227708, now seen corresponding path program 1 times [2022-11-16 16:11:19,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:11:19,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372346952] [2022-11-16 16:11:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:11:19,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:11:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:11:19,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:19,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372346952] [2022-11-16 16:11:19,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372346952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:11:19,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:11:19,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 16:11:19,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419920400] [2022-11-16 16:11:19,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:11:19,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:11:19,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:11:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:11:19,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:11:19,200 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:11:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:11:19,319 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2022-11-16 16:11:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 16:11:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 18 [2022-11-16 16:11:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:11:19,323 INFO L225 Difference]: With dead ends: 74 [2022-11-16 16:11:19,323 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 16:11:19,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 16:11:19,325 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:11:19,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:11:19,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 16:11:19,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-16 16:11:19,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 16:11:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-16 16:11:19,338 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-11-16 16:11:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:11:19,344 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-16 16:11:19,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:11:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-16 16:11:19,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 16:11:19,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:11:19,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:11:19,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:11:19,348 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:11:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:11:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -131569514, now seen corresponding path program 1 times [2022-11-16 16:11:19,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:11:19,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006221932] [2022-11-16 16:11:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:11:19,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:11:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:11:19,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:19,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006221932] [2022-11-16 16:11:19,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006221932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:11:19,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:11:19,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:11:19,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756395746] [2022-11-16 16:11:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:11:19,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:11:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:11:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:11:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:11:19,455 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:11:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:11:19,506 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2022-11-16 16:11:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:11:19,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 21 [2022-11-16 16:11:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:11:19,508 INFO L225 Difference]: With dead ends: 70 [2022-11-16 16:11:19,508 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 16:11:19,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:11:19,511 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:11:19,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:11:19,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 16:11:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-16 16:11:19,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 51 states have internal predecessors, (56), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-16 16:11:19,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2022-11-16 16:11:19,538 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 21 [2022-11-16 16:11:19,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:11:19,538 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2022-11-16 16:11:19,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:11:19,539 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-11-16 16:11:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 16:11:19,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:11:19,541 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 16:11:19,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:11:19,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:11:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:11:19,543 INFO L85 PathProgramCache]: Analyzing trace with hash -124206989, now seen corresponding path program 1 times [2022-11-16 16:11:19,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:11:19,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132242732] [2022-11-16 16:11:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:11:19,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:11:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:11:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:11:19,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:11:19,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132242732] [2022-11-16 16:11:19,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132242732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:11:19,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:11:19,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 16:11:19,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269370962] [2022-11-16 16:11:19,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:11:19,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:11:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:11:19,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:11:19,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:11:19,964 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-16 16:11:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:11:20,083 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2022-11-16 16:11:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:11:20,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-11-16 16:11:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:11:20,086 INFO L225 Difference]: With dead ends: 92 [2022-11-16 16:11:20,087 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 16:11:20,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:11:20,094 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:11:20,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 33 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:11:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 16:11:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 16:11:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:11:20,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 16:11:20,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-16 16:11:20,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:11:20,097 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 16:11:20,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-16 16:11:20,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 16:11:20,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 16:11:20,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 16:11:20,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:11:20,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 16:11:20,402 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 801 812) the Hoare annotation is: true [2022-11-16 16:11:20,402 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 801 812) no Hoare annotation was computed. [2022-11-16 16:11:20,402 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 813 821) the Hoare annotation is: true [2022-11-16 16:11:20,402 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 813 821) no Hoare annotation was computed. [2022-11-16 16:11:20,402 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 886) no Hoare annotation was computed. [2022-11-16 16:11:20,403 INFO L895 garLoopResultBuilder]: At program point L872(lines 872 889) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)))) [2022-11-16 16:11:20,403 INFO L895 garLoopResultBuilder]: At program point L872-1(lines 864 892) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)))) [2022-11-16 16:11:20,403 INFO L895 garLoopResultBuilder]: At program point L870(line 870) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-16 16:11:20,403 INFO L899 garLoopResultBuilder]: For program point L870-1(line 870) no Hoare annotation was computed. [2022-11-16 16:11:20,404 INFO L895 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~pumpRunning~0 0))) [2022-11-16 16:11:20,404 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 638 661) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-16 16:11:20,404 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 883) no Hoare annotation was computed. [2022-11-16 16:11:20,404 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 638 661) no Hoare annotation was computed. [2022-11-16 16:11:20,404 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 769) no Hoare annotation was computed. [2022-11-16 16:11:20,404 INFO L902 garLoopResultBuilder]: At program point L481(lines 456 485) the Hoare annotation is: true [2022-11-16 16:11:20,405 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 456 485) no Hoare annotation was computed. [2022-11-16 16:11:20,405 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-11-16 16:11:20,405 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 456 485) the Hoare annotation is: true [2022-11-16 16:11:20,405 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 474) no Hoare annotation was computed. [2022-11-16 16:11:20,405 INFO L902 garLoopResultBuilder]: At program point L470-1(lines 470 474) the Hoare annotation is: true [2022-11-16 16:11:20,405 INFO L902 garLoopResultBuilder]: At program point L466-2(lines 466 480) the Hoare annotation is: true [2022-11-16 16:11:20,405 INFO L902 garLoopResultBuilder]: At program point L462(line 462) the Hoare annotation is: true [2022-11-16 16:11:20,406 INFO L899 garLoopResultBuilder]: For program point L462-1(line 462) no Hoare annotation was computed. [2022-11-16 16:11:20,406 INFO L895 garLoopResultBuilder]: At program point L543(lines 543 550) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0)) [2022-11-16 16:11:20,406 INFO L902 garLoopResultBuilder]: At program point L543-2(lines 543 550) the Hoare annotation is: true [2022-11-16 16:11:20,407 INFO L902 garLoopResultBuilder]: At program point L622(lines 559 626) the Hoare annotation is: true [2022-11-16 16:11:20,407 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 595) no Hoare annotation was computed. [2022-11-16 16:11:20,407 INFO L895 garLoopResultBuilder]: At program point L589-1(lines 589 595) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 16:11:20,408 INFO L895 garLoopResultBuilder]: At program point L581(line 581) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 16:11:20,408 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-16 16:11:20,408 INFO L895 garLoopResultBuilder]: At program point L619(lines 568 620) the Hoare annotation is: false [2022-11-16 16:11:20,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 16:11:20,408 INFO L895 garLoopResultBuilder]: At program point L607-2(lines 599 614) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 16:11:20,409 INFO L899 garLoopResultBuilder]: For program point L570(lines 569 618) no Hoare annotation was computed. [2022-11-16 16:11:20,409 INFO L895 garLoopResultBuilder]: At program point L591(line 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 16:11:20,409 INFO L895 garLoopResultBuilder]: At program point L616(lines 569 618) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 16:11:20,412 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 585) no Hoare annotation was computed. [2022-11-16 16:11:20,412 INFO L899 garLoopResultBuilder]: For program point L579-1(lines 579 585) no Hoare annotation was computed. [2022-11-16 16:11:20,412 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 789 800) no Hoare annotation was computed. [2022-11-16 16:11:20,413 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 789 800) the Hoare annotation is: true [2022-11-16 16:11:20,417 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 16:11:20,419 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:11:20,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:11:20 BoogieIcfgContainer [2022-11-16 16:11:20,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:11:20,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:11:20,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:11:20,449 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:11:20,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:11:18" (3/4) ... [2022-11-16 16:11:20,452 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:11:20,456 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 16:11:20,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-16 16:11:20,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 16:11:20,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 16:11:20,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 16:11:20,464 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2022-11-16 16:11:20,464 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-16 16:11:20,464 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-16 16:11:20,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 16:11:20,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 16:11:20,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 16:11:20,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 16:11:20,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) [2022-11-16 16:11:20,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-16 16:11:20,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-16 16:11:20,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) [2022-11-16 16:11:20,526 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:11:20,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:11:20,528 INFO L158 Benchmark]: Toolchain (without parser) took 3693.22ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 65.5MB in the beginning and 64.2MB in the end (delta: 1.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-11-16 16:11:20,528 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:11:20,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.60ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 70.4MB in the end (delta: -5.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:11:20,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.12ms. Allocated memory is still 102.8MB. Free memory was 70.4MB in the beginning and 68.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:11:20,529 INFO L158 Benchmark]: Boogie Preprocessor took 58.35ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 66.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:11:20,530 INFO L158 Benchmark]: RCFGBuilder took 788.69ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 66.3MB in the beginning and 96.5MB in the end (delta: -30.2MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-11-16 16:11:20,530 INFO L158 Benchmark]: TraceAbstraction took 2185.11ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 68.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2022-11-16 16:11:20,531 INFO L158 Benchmark]: Witness Printer took 78.26ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 64.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:11:20,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.60ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 70.4MB in the end (delta: -5.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.12ms. Allocated memory is still 102.8MB. Free memory was 70.4MB in the beginning and 68.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.35ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 66.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 788.69ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 66.3MB in the beginning and 96.5MB in the end (delta: -30.2MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2185.11ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 68.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Witness Printer took 78.26ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 64.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 769]: 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 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 120 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 88 PreInvPairs, 103 NumberOfFragments, 163 HoareAnnotationTreeSize, 88 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 262 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 15/15 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: 589]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) - InvariantResult [Line: 456]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 769]: Loop Invariant Derived loop invariant: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) RESULT: Ultimate proved your program to be correct! [2022-11-16 16:11:20,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdd17412-7237-4f2c-a2b4-d7f2b4f177b7/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE