./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product02.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_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/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_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/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_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/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 653672bd839f3a147b3f28538328e3e5032963608595336a23f534aa316d712b --- 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 20:19:10,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:19:10,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:19:10,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:19:10,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:19:10,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:19:10,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:19:10,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:19:10,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:19:10,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:19:10,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:19:10,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:19:10,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:19:10,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:19:10,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:19:10,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:19:10,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:19:10,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:19:10,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:19:10,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:19:10,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:19:10,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:19:10,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:19:10,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:19:10,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:19:10,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:19:10,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:19:10,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:19:10,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:19:10,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:19:10,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:19:10,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:19:10,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:19:10,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:19:10,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:19:10,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:19:10,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:19:10,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:19:10,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:19:10,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:19:10,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:19:10,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:19:10,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:19:10,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:19:10,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:19:10,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:19:10,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:19:10,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:19:10,422 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:19:10,423 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:19:10,423 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:19:10,423 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:19:10,424 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:19:10,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:19:10,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:19:10,425 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:19:10,425 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:19:10,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:19:10,425 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:19:10,425 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:19:10,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:19:10,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:19:10,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:19:10,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:19:10,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:19:10,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:19:10,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:19:10,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:19:10,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:19:10,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:19:10,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:19:10,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:19:10,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:19:10,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:19:10,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:19:10,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:19:10,429 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:19:10,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:19:10,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:19:10,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:19:10,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:19:10,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:19:10,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:19:10,431 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_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 653672bd839f3a147b3f28538328e3e5032963608595336a23f534aa316d712b [2022-11-16 20:19:10,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:19:10,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:19:10,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:19:10,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:19:10,812 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:19:10,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c [2022-11-16 20:19:10,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/data/966379081/1bfa3cce5a184ac6a56e51e571c613f9/FLAG66b94fc24 [2022-11-16 20:19:11,519 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:19:11,519 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c [2022-11-16 20:19:11,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/data/966379081/1bfa3cce5a184ac6a56e51e571c613f9/FLAG66b94fc24 [2022-11-16 20:19:11,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/data/966379081/1bfa3cce5a184ac6a56e51e571c613f9 [2022-11-16 20:19:11,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:19:11,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:19:11,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:19:11,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:19:11,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:19:11,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:19:11" (1/1) ... [2022-11-16 20:19:11,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a401c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:11, skipping insertion in model container [2022-11-16 20:19:11,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:19:11" (1/1) ... [2022-11-16 20:19:11,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:19:11,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:19:12,224 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_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c[17174,17187] [2022-11-16 20:19:12,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:19:12,236 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:19:12,336 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_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c[17174,17187] [2022-11-16 20:19:12,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:19:12,362 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:19:12,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12 WrapperNode [2022-11-16 20:19:12,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:19:12,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:19:12,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:19:12,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:19:12,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,437 INFO L138 Inliner]: procedures = 51, calls = 146, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 191 [2022-11-16 20:19:12,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:19:12,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:19:12,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:19:12,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:19:12,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,492 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:19:12,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:19:12,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:19:12,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:19:12,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (1/1) ... [2022-11-16 20:19:12,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:19:12,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:19:12,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:19:12,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:19:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:19:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 20:19:12,586 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 20:19:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 20:19:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 20:19:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-16 20:19:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-16 20:19:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 20:19:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 20:19:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:19:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 20:19:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 20:19:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:19:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:19:12,693 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:19:12,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:19:12,962 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:19:13,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:19:13,148 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 20:19:13,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:19:13 BoogieIcfgContainer [2022-11-16 20:19:13,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:19:13,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:19:13,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:19:13,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:19:13,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:19:11" (1/3) ... [2022-11-16 20:19:13,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb697c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:19:13, skipping insertion in model container [2022-11-16 20:19:13,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:19:12" (2/3) ... [2022-11-16 20:19:13,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb697c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:19:13, skipping insertion in model container [2022-11-16 20:19:13,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:19:13" (3/3) ... [2022-11-16 20:19:13,160 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product02.cil.c [2022-11-16 20:19:13,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:19:13,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:19:13,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:19:13,238 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;@5eca85d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:19:13,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:19:13,243 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 20:19:13,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 20:19:13,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:13,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:19:13,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:13,258 INFO L85 PathProgramCache]: Analyzing trace with hash 853857632, now seen corresponding path program 1 times [2022-11-16 20:19:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:13,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708739691] [2022-11-16 20:19:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:13,572 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 20:19:13,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:13,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708739691] [2022-11-16 20:19:13,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708739691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:13,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:19:13,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:19:13,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400467769] [2022-11-16 20:19:13,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:13,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 20:19:13,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:13,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 20:19:13,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 20:19:13,622 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 20:19:13,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:13,734 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-16 20:19:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 20:19:13,737 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 20:19:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:13,745 INFO L225 Difference]: With dead ends: 78 [2022-11-16 20:19:13,745 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 20:19:13,748 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 20:19:13,756 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:19:13,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 20:19:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 20:19:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-16 20:19:13,800 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 20:19:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-16 20:19:13,806 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2022-11-16 20:19:13,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:13,806 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-16 20:19:13,807 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 20:19:13,808 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-16 20:19:13,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 20:19:13,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:13,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:19:13,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:19:13,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:13,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:13,813 INFO L85 PathProgramCache]: Analyzing trace with hash 815489243, now seen corresponding path program 1 times [2022-11-16 20:19:13,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:13,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107830165] [2022-11-16 20:19:13,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:13,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:14,060 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 20:19:14,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:14,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107830165] [2022-11-16 20:19:14,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107830165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:14,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:19:14,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:19:14,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501790949] [2022-11-16 20:19:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:14,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:19:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:19:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:19:14,064 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 20:19:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:14,117 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-16 20:19:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:19:14,119 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 20:19:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:14,124 INFO L225 Difference]: With dead ends: 47 [2022-11-16 20:19:14,124 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 20:19:14,126 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 20:19:14,128 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:19:14,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:19:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 20:19:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 20:19:14,140 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 20:19:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-16 20:19:14,142 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-16 20:19:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:14,143 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-16 20:19:14,144 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 20:19:14,145 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-16 20:19:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 20:19:14,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:14,147 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 20:19:14,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:19:14,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:14,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash 522074319, now seen corresponding path program 1 times [2022-11-16 20:19:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:14,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819713934] [2022-11-16 20:19:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:14,390 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 20:19:14,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:14,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819713934] [2022-11-16 20:19:14,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819713934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:14,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:19:14,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 20:19:14,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823761051] [2022-11-16 20:19:14,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:14,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 20:19:14,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 20:19:14,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:19:14,396 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 20:19:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:14,565 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2022-11-16 20:19:14,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:19:14,566 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 20:19:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:14,569 INFO L225 Difference]: With dead ends: 74 [2022-11-16 20:19:14,571 INFO L226 Difference]: Without dead ends: 49 [2022-11-16 20:19:14,572 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 20:19:14,574 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 20:19:14,577 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 20:19:14,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-16 20:19:14,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-16 20:19:14,591 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 20:19:14,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-16 20:19:14,597 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-11-16 20:19:14,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:14,597 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-16 20:19:14,597 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 20:19:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-16 20:19:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 20:19:14,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:14,600 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 20:19:14,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:19:14,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash -805154440, now seen corresponding path program 1 times [2022-11-16 20:19:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:14,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971870988] [2022-11-16 20:19:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:14,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:14,699 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 20:19:14,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:14,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971870988] [2022-11-16 20:19:14,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971870988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:14,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:19:14,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:19:14,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472953308] [2022-11-16 20:19:14,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:14,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:19:14,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:19:14,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:19:14,701 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 20:19:14,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:14,759 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2022-11-16 20:19:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:19:14,759 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 20:19:14,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:14,761 INFO L225 Difference]: With dead ends: 70 [2022-11-16 20:19:14,761 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 20:19:14,761 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 20:19:14,762 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 20:19:14,763 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 20:19:14,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 20:19:14,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-16 20:19:14,774 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 20:19:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2022-11-16 20:19:14,775 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 21 [2022-11-16 20:19:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:14,776 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2022-11-16 20:19:14,776 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 20:19:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-11-16 20:19:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 20:19:14,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:19:14,777 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 20:19:14,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:19:14,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:19:14,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:19:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1475864745, now seen corresponding path program 1 times [2022-11-16 20:19:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:19:14,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153515701] [2022-11-16 20:19:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:19:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:19:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:19:15,070 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 20:19:15,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:19:15,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153515701] [2022-11-16 20:19:15,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153515701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:19:15,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:19:15,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 20:19:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590485478] [2022-11-16 20:19:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:19:15,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 20:19:15,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:19:15,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 20:19:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:19:15,073 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 20:19:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:19:15,163 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2022-11-16 20:19:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:19:15,164 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 20:19:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:19:15,164 INFO L225 Difference]: With dead ends: 92 [2022-11-16 20:19:15,164 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:19:15,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 20:19:15,166 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 20:19:15,166 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 20:19:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:19:15,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:19:15,167 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 20:19:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:19:15,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-16 20:19:15,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:19:15,168 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:19:15,168 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 20:19:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:19:15,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:19:15,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 20:19:15,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:19:15,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:19:15,450 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 120 131) the Hoare annotation is: true [2022-11-16 20:19:15,450 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2022-11-16 20:19:15,450 INFO L895 garLoopResultBuilder]: At program point L870(line 870) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~pumpRunning~0 0))) [2022-11-16 20:19:15,451 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 207) no Hoare annotation was computed. [2022-11-16 20:19:15,451 INFO L895 garLoopResultBuilder]: At program point L193(lines 193 210) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1))) [2022-11-16 20:19:15,452 INFO L895 garLoopResultBuilder]: At program point L193-1(lines 185 213) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1))) [2022-11-16 20:19:15,452 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-16 20:19:15,452 INFO L899 garLoopResultBuilder]: For program point L191-1(line 191) no Hoare annotation was computed. [2022-11-16 20:19:15,452 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 687 710) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-16 20:19:15,452 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 687 710) no Hoare annotation was computed. [2022-11-16 20:19:15,453 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 870) no Hoare annotation was computed. [2022-11-16 20:19:15,454 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 204) no Hoare annotation was computed. [2022-11-16 20:19:15,454 INFO L902 garLoopResultBuilder]: At program point L608(lines 583 612) the Hoare annotation is: true [2022-11-16 20:19:15,454 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 583 612) no Hoare annotation was computed. [2022-11-16 20:19:15,454 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 583 612) the Hoare annotation is: true [2022-11-16 20:19:15,454 INFO L899 garLoopResultBuilder]: For program point L604(line 604) no Hoare annotation was computed. [2022-11-16 20:19:15,454 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 601) no Hoare annotation was computed. [2022-11-16 20:19:15,455 INFO L902 garLoopResultBuilder]: At program point L597-1(lines 597 601) the Hoare annotation is: true [2022-11-16 20:19:15,455 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 607) the Hoare annotation is: true [2022-11-16 20:19:15,455 INFO L902 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: true [2022-11-16 20:19:15,455 INFO L899 garLoopResultBuilder]: For program point L589-1(line 589) no Hoare annotation was computed. [2022-11-16 20:19:15,455 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 132 140) the Hoare annotation is: true [2022-11-16 20:19:15,456 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2022-11-16 20:19:15,456 INFO L895 garLoopResultBuilder]: At program point L667(lines 667 674) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0)) [2022-11-16 20:19:15,456 INFO L895 garLoopResultBuilder]: At program point L857(lines 808 858) the Hoare annotation is: false [2022-11-16 20:19:15,456 INFO L902 garLoopResultBuilder]: At program point L667-2(lines 667 674) the Hoare annotation is: true [2022-11-16 20:19:15,456 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-16 20:19:15,457 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 835) no Hoare annotation was computed. [2022-11-16 20:19:15,457 INFO L895 garLoopResultBuilder]: At program point L829-1(lines 829 835) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:19:15,457 INFO L895 garLoopResultBuilder]: At program point L854(lines 809 856) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:19:15,458 INFO L895 garLoopResultBuilder]: At program point L821(line 821) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:19:15,458 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:19:15,458 INFO L895 garLoopResultBuilder]: At program point L847-2(lines 839 852) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:19:15,458 INFO L899 garLoopResultBuilder]: For program point L810(lines 809 856) no Hoare annotation was computed. [2022-11-16 20:19:15,458 INFO L895 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-16 20:19:15,459 INFO L902 garLoopResultBuilder]: At program point L860(lines 799 864) the Hoare annotation is: true [2022-11-16 20:19:15,459 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 825) no Hoare annotation was computed. [2022-11-16 20:19:15,459 INFO L899 garLoopResultBuilder]: For program point L819-1(lines 819 825) no Hoare annotation was computed. [2022-11-16 20:19:15,459 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2022-11-16 20:19:15,459 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 108 119) the Hoare annotation is: true [2022-11-16 20:19:15,465 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 20:19:15,468 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:19:15,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:19:15 BoogieIcfgContainer [2022-11-16 20:19:15,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:19:15,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:19:15,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:19:15,498 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:19:15,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:19:13" (3/4) ... [2022-11-16 20:19:15,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:19:15,508 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 20:19:15,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 20:19:15,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 20:19:15,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-16 20:19:15,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 20:19:15,521 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2022-11-16 20:19:15,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-16 20:19:15,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-16 20:19:15,523 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 20:19:15,523 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 20:19:15,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:19:15,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:19:15,565 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) [2022-11-16 20:19:15,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) [2022-11-16 20:19:15,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) [2022-11-16 20:19:15,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) [2022-11-16 20:19:15,604 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:19:15,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:19:15,605 INFO L158 Benchmark]: Toolchain (without parser) took 3751.20ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 99.4MB in the beginning and 111.9MB in the end (delta: -12.4MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,606 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 37.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:19:15,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.18ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 101.2MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.00ms. Allocated memory is still 134.2MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,607 INFO L158 Benchmark]: Boogie Preprocessor took 66.42ms. Allocated memory is still 134.2MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,607 INFO L158 Benchmark]: RCFGBuilder took 641.79ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 72.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,608 INFO L158 Benchmark]: TraceAbstraction took 2344.29ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 71.9MB in the beginning and 116.0MB in the end (delta: -44.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,608 INFO L158 Benchmark]: Witness Printer took 106.50ms. Allocated memory is still 178.3MB. Free memory was 116.0MB in the beginning and 111.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 20:19:15,611 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 86.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 37.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.18ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 101.2MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.00ms. Allocated memory is still 134.2MB. Free memory was 101.2MB in the beginning and 99.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.42ms. Allocated memory is still 134.2MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 641.79ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 72.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2344.29ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 71.9MB in the beginning and 116.0MB in the end (delta: -44.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Witness Printer took 106.50ms. Allocated memory is still 178.3MB. Free memory was 116.0MB in the beginning and 111.9MB 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: 870]: 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, 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, 24 GetRequests, 11 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, 0.2s 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: 185]: Loop Invariant Derived loop invariant: (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 799]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) - InvariantResult [Line: 808]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 20:19:15,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca10ab29-6ce1-4ee6-af00-e29a4fff9487/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