./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c57aad23cdcf8081ba5352d473aea77ba42b47e93421a900d6921ce930c9593 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:38:01,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:38:01,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:38:01,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:38:01,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:38:01,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:38:01,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:38:01,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:38:01,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:38:01,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:38:01,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:38:01,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:38:01,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:38:01,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:38:01,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:38:01,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:38:01,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:38:01,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:38:01,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:38:01,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:38:01,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:38:01,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:38:01,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:38:01,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:38:01,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:38:01,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:38:01,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:38:01,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:38:01,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:38:01,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:38:01,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:38:01,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:38:01,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:38:01,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:38:01,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:38:01,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:38:01,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:38:01,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:38:01,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:38:01,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:38:01,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:38:01,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:38:01,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:38:01,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:38:01,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:38:01,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:38:01,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:38:01,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:38:01,505 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:38:01,505 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:38:01,512 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:38:01,512 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:38:01,512 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:38:01,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:38:01,513 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:38:01,513 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:38:01,513 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:38:01,513 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:38:01,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:38:01,513 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:38:01,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:38:01,514 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:38:01,515 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:38:01,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:38:01,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:38:01,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:38:01,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:38:01,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:38:01,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:38:01,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:38:01,517 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:38:01,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:38:01,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:38:01,517 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:38:01,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:38:01,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:38:01,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:38:01,518 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_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c57aad23cdcf8081ba5352d473aea77ba42b47e93421a900d6921ce930c9593 [2022-12-14 14:38:01,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:38:01,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:38:01,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:38:01,727 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:38:01,727 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:38:01,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2022-12-14 14:38:04,349 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:38:04,514 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:38:04,514 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2022-12-14 14:38:04,522 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/data/155b9a2b5/53ba7a07342b4239a2120c0894253b70/FLAGd20602148 [2022-12-14 14:38:04,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/data/155b9a2b5/53ba7a07342b4239a2120c0894253b70 [2022-12-14 14:38:04,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:38:04,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:38:04,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:38:04,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:38:04,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:38:04,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46888cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04, skipping insertion in model container [2022-12-14 14:38:04,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:38:04,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:38:04,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c[15113,15126] [2022-12-14 14:38:04,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:38:04,807 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:38:04,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c[15113,15126] [2022-12-14 14:38:04,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:38:04,883 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:38:04,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04 WrapperNode [2022-12-14 14:38:04,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:38:04,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:38:04,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:38:04,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:38:04,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,925 INFO L138 Inliner]: procedures = 55, calls = 97, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 171 [2022-12-14 14:38:04,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:38:04,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:38:04,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:38:04,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:38:04,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,946 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:38:04,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:38:04,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:38:04,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:38:04,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (1/1) ... [2022-12-14 14:38:04,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:38:04,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:38:04,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:38:04,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:38:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:38:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 14:38:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 14:38:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 14:38:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 14:38:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 14:38:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 14:38:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 14:38:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 14:38:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 14:38:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 14:38:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 14:38:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 14:38:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:38:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 14:38:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 14:38:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:38:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:38:05,085 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:38:05,087 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:38:05,256 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:38:05,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:38:05,337 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:38:05,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:38:05 BoogieIcfgContainer [2022-12-14 14:38:05,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:38:05,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:38:05,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:38:05,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:38:05,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:38:04" (1/3) ... [2022-12-14 14:38:05,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f9a748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:38:05, skipping insertion in model container [2022-12-14 14:38:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:38:04" (2/3) ... [2022-12-14 14:38:05,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f9a748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:38:05, skipping insertion in model container [2022-12-14 14:38:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:38:05" (3/3) ... [2022-12-14 14:38:05,348 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2022-12-14 14:38:05,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:38:05,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:38:05,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:38:05,423 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;@1929ee69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:38:05,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:38:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:38:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:38:05,436 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:38:05,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:38:05,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:38:05,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:38:05,442 INFO L85 PathProgramCache]: Analyzing trace with hash -147413815, now seen corresponding path program 1 times [2022-12-14 14:38:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:38:05,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140449126] [2022-12-14 14:38:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:38:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:38:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:38:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:38:05,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:38:05,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140449126] [2022-12-14 14:38:05,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140449126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:38:05,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:38:05,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:38:05,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636167808] [2022-12-14 14:38:05,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:38:05,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:38:05,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:38:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:38:05,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:38:05,615 INFO L87 Difference]: Start difference. First operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:38:05,668 INFO L93 Difference]: Finished difference Result 112 states and 153 transitions. [2022-12-14 14:38:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:38:05,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 14:38:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:38:05,676 INFO L225 Difference]: With dead ends: 112 [2022-12-14 14:38:05,676 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 14:38:05,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:38:05,680 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:38:05,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:38:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 14:38:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-14 14:38:05,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 14:38:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-12-14 14:38:05,711 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2022-12-14 14:38:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:38:05,712 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-12-14 14:38:05,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-12-14 14:38:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 14:38:05,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:38:05,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:38:05,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:38:05,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:38:05,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:38:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash -383974559, now seen corresponding path program 1 times [2022-12-14 14:38:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:38:05,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626777249] [2022-12-14 14:38:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:38:05,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:38:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:38:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:38:05,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:38:05,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626777249] [2022-12-14 14:38:05,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626777249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:38:05,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:38:05,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:38:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560268442] [2022-12-14 14:38:05,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:38:05,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:38:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:38:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:38:05,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:38:05,787 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:38:05,817 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2022-12-14 14:38:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:38:05,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2022-12-14 14:38:05,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:38:05,819 INFO L225 Difference]: With dead ends: 76 [2022-12-14 14:38:05,819 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 14:38:05,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:38:05,820 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 14 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:38:05,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 70 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:38:05,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 14:38:05,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 14:38:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 35 states have internal predecessors, (40), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 14:38:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-12-14 14:38:05,826 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 18 [2022-12-14 14:38:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:38:05,826 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-12-14 14:38:05,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-12-14 14:38:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 14:38:05,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:38:05,827 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] [2022-12-14 14:38:05,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:38:05,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:38:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:38:05,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1873190452, now seen corresponding path program 1 times [2022-12-14 14:38:05,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:38:05,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506242269] [2022-12-14 14:38:05,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:38:05,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:38:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:38:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:38:05,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:38:05,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506242269] [2022-12-14 14:38:05,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506242269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:38:05,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:38:05,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:38:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432710274] [2022-12-14 14:38:05,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:38:05,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:38:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:38:05,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:38:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:38:05,884 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:05,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:38:05,931 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2022-12-14 14:38:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:38:05,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-12-14 14:38:05,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:38:05,934 INFO L225 Difference]: With dead ends: 128 [2022-12-14 14:38:05,934 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 14:38:05,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:38:05,935 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 50 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:38:05,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 100 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:38:05,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 14:38:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2022-12-14 14:38:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 65 states have internal predecessors, (75), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 14:38:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-12-14 14:38:05,947 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 21 [2022-12-14 14:38:05,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:38:05,947 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-12-14 14:38:05,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:05,948 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-12-14 14:38:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 14:38:05,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:38:05,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:38:05,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:38:05,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:38:05,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:38:05,949 INFO L85 PathProgramCache]: Analyzing trace with hash 228873317, now seen corresponding path program 1 times [2022-12-14 14:38:05,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:38:05,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640283368] [2022-12-14 14:38:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:38:05,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:38:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:38:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:38:06,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:38:06,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640283368] [2022-12-14 14:38:06,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640283368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:38:06,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:38:06,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:38:06,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877219934] [2022-12-14 14:38:06,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:38:06,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:38:06,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:38:06,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:38:06,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:38:06,059 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:06,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:38:06,160 INFO L93 Difference]: Finished difference Result 241 states and 314 transitions. [2022-12-14 14:38:06,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:38:06,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 24 [2022-12-14 14:38:06,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:38:06,164 INFO L225 Difference]: With dead ends: 241 [2022-12-14 14:38:06,165 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 14:38:06,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 14:38:06,167 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:38:06,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 219 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:38:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 14:38:06,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2022-12-14 14:38:06,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 118 states have internal predecessors, (135), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 20 states have call predecessors, (30), 30 states have call successors, (30) [2022-12-14 14:38:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2022-12-14 14:38:06,184 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 24 [2022-12-14 14:38:06,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:38:06,184 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2022-12-14 14:38:06,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:38:06,184 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2022-12-14 14:38:06,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 14:38:06,185 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:38:06,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:38:06,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:38:06,186 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:38:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:38:06,186 INFO L85 PathProgramCache]: Analyzing trace with hash 322474785, now seen corresponding path program 1 times [2022-12-14 14:38:06,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:38:06,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494135070] [2022-12-14 14:38:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:38:06,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:38:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:38:06,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:38:06,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:38:06,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494135070] [2022-12-14 14:38:06,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494135070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:38:06,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:38:06,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:38:06,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919607339] [2022-12-14 14:38:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:38:06,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:38:06,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:38:06,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:38:06,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:38:06,269 INFO L87 Difference]: Start difference. First operand 152 states and 195 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:38:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:38:06,317 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2022-12-14 14:38:06,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:38:06,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 27 [2022-12-14 14:38:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:38:06,320 INFO L225 Difference]: With dead ends: 233 [2022-12-14 14:38:06,320 INFO L226 Difference]: Without dead ends: 231 [2022-12-14 14:38:06,321 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 [2022-12-14 14:38:06,322 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 31 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:38:06,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 90 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:38:06,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-14 14:38:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-12-14 14:38:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 150 states have (on average 1.3666666666666667) internal successors, (205), 179 states have internal predecessors, (205), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (50), 31 states have call predecessors, (50), 46 states have call successors, (50) [2022-12-14 14:38:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 301 transitions. [2022-12-14 14:38:06,360 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 301 transitions. Word has length 27 [2022-12-14 14:38:06,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:38:06,361 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 301 transitions. [2022-12-14 14:38:06,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:38:06,361 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 301 transitions. [2022-12-14 14:38:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 14:38:06,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:38:06,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:38:06,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:38:06,365 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:38:06,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:38:06,365 INFO L85 PathProgramCache]: Analyzing trace with hash -373136831, now seen corresponding path program 1 times [2022-12-14 14:38:06,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:38:06,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092014418] [2022-12-14 14:38:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:38:06,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:38:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:38:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:38:06,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:38:06,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092014418] [2022-12-14 14:38:06,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092014418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:38:06,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:38:06,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:38:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27506708] [2022-12-14 14:38:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:38:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:38:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:38:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:38:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:38:06,540 INFO L87 Difference]: Start difference. First operand 231 states and 301 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 14:38:06,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:38:06,634 INFO L93 Difference]: Finished difference Result 357 states and 463 transitions. [2022-12-14 14:38:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:38:06,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 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 48 [2022-12-14 14:38:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:38:06,636 INFO L225 Difference]: With dead ends: 357 [2022-12-14 14:38:06,636 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:38:06,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:38:06,638 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:38:06,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 62 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:38:06,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:38:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:38:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:38:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:38:06,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-12-14 14:38:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:38:06,640 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:38:06,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 14:38:06,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:38:06,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:38:06,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:38:06,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:38:06,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:38:07,090 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 841 848) no Hoare annotation was computed. [2022-12-14 14:38:07,090 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 841 848) the Hoare annotation is: true [2022-12-14 14:38:07,091 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 800 806) no Hoare annotation was computed. [2022-12-14 14:38:07,091 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 800 806) the Hoare annotation is: true [2022-12-14 14:38:07,091 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 162 173) the Hoare annotation is: true [2022-12-14 14:38:07,091 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 162 173) no Hoare annotation was computed. [2022-12-14 14:38:07,091 INFO L899 garLoopResultBuilder]: For program point L787-1(lines 787 793) no Hoare annotation was computed. [2022-12-14 14:38:07,091 INFO L899 garLoopResultBuilder]: For program point L816(lines 816 824) no Hoare annotation was computed. [2022-12-14 14:38:07,091 INFO L895 garLoopResultBuilder]: At program point L812(lines 812 829) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:38:07,092 INFO L899 garLoopResultBuilder]: For program point L780-1(lines 779 798) no Hoare annotation was computed. [2022-12-14 14:38:07,092 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-12-14 14:38:07,092 INFO L895 garLoopResultBuilder]: At program point L70(lines 70 87) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0) .cse2) (or .cse0 .cse1 .cse2 (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))))) [2022-12-14 14:38:07,092 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0) .cse2) (or .cse0 .cse1 .cse2 (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))))) [2022-12-14 14:38:07,092 INFO L895 garLoopResultBuilder]: At program point L822(line 822) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:38:07,093 INFO L895 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:38:07,093 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-12-14 14:38:07,093 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 776 799) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:38:07,093 INFO L895 garLoopResultBuilder]: At program point L827(line 827) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:38:07,093 INFO L895 garLoopResultBuilder]: At program point L827-1(lines 808 832) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:38:07,093 INFO L895 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|))) [2022-12-14 14:38:07,093 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 776 799) no Hoare annotation was computed. [2022-12-14 14:38:07,093 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 695) no Hoare annotation was computed. [2022-12-14 14:38:07,094 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (<= |old(~pumpRunning~0)| 0)) (not (<= 0 |old(~pumpRunning~0)|)) (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 0 ~pumpRunning~0))) [2022-12-14 14:38:07,094 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-12-14 14:38:07,094 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 227 256) no Hoare annotation was computed. [2022-12-14 14:38:07,094 INFO L902 garLoopResultBuilder]: At program point L252(lines 227 256) the Hoare annotation is: true [2022-12-14 14:38:07,094 INFO L899 garLoopResultBuilder]: For program point L248(line 248) no Hoare annotation was computed. [2022-12-14 14:38:07,094 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 245) no Hoare annotation was computed. [2022-12-14 14:38:07,094 INFO L902 garLoopResultBuilder]: At program point L241-1(lines 241 245) the Hoare annotation is: true [2022-12-14 14:38:07,094 INFO L902 garLoopResultBuilder]: At program point L237-2(lines 237 251) the Hoare annotation is: true [2022-12-14 14:38:07,094 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 227 256) the Hoare annotation is: true [2022-12-14 14:38:07,095 INFO L902 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: true [2022-12-14 14:38:07,095 INFO L899 garLoopResultBuilder]: For program point L233-1(line 233) no Hoare annotation was computed. [2022-12-14 14:38:07,095 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 174 182) the Hoare annotation is: true [2022-12-14 14:38:07,095 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 174 182) no Hoare annotation was computed. [2022-12-14 14:38:07,095 INFO L895 garLoopResultBuilder]: At program point L762(lines 711 763) the Hoare annotation is: false [2022-12-14 14:38:07,095 INFO L899 garLoopResultBuilder]: For program point L750(lines 750 756) no Hoare annotation was computed. [2022-12-14 14:38:07,095 INFO L895 garLoopResultBuilder]: At program point L750-2(lines 742 757) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,095 INFO L899 garLoopResultBuilder]: For program point L713(lines 712 761) no Hoare annotation was computed. [2022-12-14 14:38:07,095 INFO L895 garLoopResultBuilder]: At program point L742(lines 742 757) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,096 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 934) no Hoare annotation was computed. [2022-12-14 14:38:07,096 INFO L895 garLoopResultBuilder]: At program point L928-1(lines 928 934) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,096 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,096 INFO L895 garLoopResultBuilder]: At program point L759(lines 712 761) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,096 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2022-12-14 14:38:07,096 INFO L899 garLoopResultBuilder]: For program point L722-1(lines 722 728) no Hoare annotation was computed. [2022-12-14 14:38:07,096 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:38:07,096 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 14:38:07,096 INFO L895 garLoopResultBuilder]: At program point L930(line 930) the Hoare annotation is: false [2022-12-14 14:38:07,096 INFO L902 garLoopResultBuilder]: At program point L765(lines 702 769) the Hoare annotation is: true [2022-12-14 14:38:07,097 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 738) no Hoare annotation was computed. [2022-12-14 14:38:07,097 INFO L899 garLoopResultBuilder]: For program point L732-1(lines 732 738) no Hoare annotation was computed. [2022-12-14 14:38:07,097 INFO L895 garLoopResultBuilder]: At program point L311(lines 311 318) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,097 INFO L902 garLoopResultBuilder]: At program point L311-2(lines 311 318) the Hoare annotation is: true [2022-12-14 14:38:07,097 INFO L895 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: (and (<= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 0 ~pumpRunning~0)) [2022-12-14 14:38:07,097 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 150 161) no Hoare annotation was computed. [2022-12-14 14:38:07,097 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 150 161) the Hoare annotation is: true [2022-12-14 14:38:07,100 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 14:38:07,102 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:38:07,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:38:07 BoogieIcfgContainer [2022-12-14 14:38:07,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:38:07,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:38:07,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:38:07,120 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:38:07,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:38:05" (3/4) ... [2022-12-14 14:38:07,123 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:38:07,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-14 14:38:07,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 14:38:07,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 14:38:07,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 14:38:07,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 14:38:07,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 14:38:07,129 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 14:38:07,136 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2022-12-14 14:38:07,137 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 14:38:07,138 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:38:07,138 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:38:07,139 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:38:07,164 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 14:38:07,165 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 14:38:07,165 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) [2022-12-14 14:38:07,166 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) [2022-12-14 14:38:07,166 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) [2022-12-14 14:38:07,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) [2022-12-14 14:38:07,190 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:38:07,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:38:07,191 INFO L158 Benchmark]: Toolchain (without parser) took 2652.75ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 102.4MB in the beginning and 106.3MB in the end (delta: -3.8MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-12-14 14:38:07,191 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:38:07,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.75ms. Allocated memory is still 134.2MB. Free memory was 102.4MB in the beginning and 83.7MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 14:38:07,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.64ms. Allocated memory is still 134.2MB. Free memory was 83.7MB in the beginning and 81.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:38:07,192 INFO L158 Benchmark]: Boogie Preprocessor took 23.16ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 80.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:38:07,193 INFO L158 Benchmark]: RCFGBuilder took 389.55ms. Allocated memory is still 134.2MB. Free memory was 80.4MB in the beginning and 58.9MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 14:38:07,193 INFO L158 Benchmark]: TraceAbstraction took 1777.88ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 58.5MB in the beginning and 111.5MB in the end (delta: -53.0MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-12-14 14:38:07,193 INFO L158 Benchmark]: Witness Printer took 70.59ms. Allocated memory is still 165.7MB. Free memory was 111.5MB in the beginning and 106.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 14:38:07,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.75ms. Allocated memory is still 134.2MB. Free memory was 102.4MB in the beginning and 83.7MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.64ms. Allocated memory is still 134.2MB. Free memory was 83.7MB in the beginning and 81.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.16ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 80.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.55ms. Allocated memory is still 134.2MB. Free memory was 80.4MB in the beginning and 58.9MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1777.88ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 58.5MB in the beginning and 111.5MB in the end (delta: -53.0MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 70.59ms. Allocated memory is still 165.7MB. Free memory was 111.5MB in the beginning and 106.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 695]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 598 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 319 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 279 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=5, InterpolantAutomatonStates: 24, 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, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 288 PreInvPairs, 329 NumberOfFragments, 351 HoareAnnotationTreeSize, 288 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 1620 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 19/19 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: 712]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 742]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: ((pumpRunning <= 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 <= pumpRunning - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) - InvariantResult [Line: 808]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning)) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || !(0 <= \old(pumpRunning))) && (((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 311]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 311]: Loop Invariant Derived loop invariant: (((pumpRunning <= 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && 0 <= pumpRunning - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || !(\old(pumpRunning) <= 0)) || !(0 <= \old(pumpRunning))) || ((pumpRunning <= 0 && methAndRunningLastTime == 0) && 0 <= pumpRunning) RESULT: Ultimate proved your program to be correct! [2022-12-14 14:38:07,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cada5ff-a63f-4828-bb96-7ee1e44a3d36/bin/utaipan-gh47qXpMRh/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