./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9 --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 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 --- 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-6b4ec56 [2022-11-20 20:25:22,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:25:22,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:25:22,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:25:22,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:25:22,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:25:22,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:25:22,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:25:22,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:25:22,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:25:22,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:25:22,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:25:22,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:25:22,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:25:22,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:25:22,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:25:22,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:25:22,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:25:22,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:25:22,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:25:22,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:25:22,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:25:22,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:25:22,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:25:22,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:25:22,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:25:22,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:25:22,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:25:22,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:25:22,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:25:22,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:25:22,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:25:22,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:25:22,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:25:22,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:25:22,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:25:22,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:25:22,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:25:22,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:25:22,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:25:22,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:25:22,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 20:25:22,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:25:22,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:25:22,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:25:22,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:25:22,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:25:22,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:25:22,621 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:25:22,621 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:25:22,622 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:25:22,622 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:25:22,622 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:25:22,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:25:22,623 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:25:22,623 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:25:22,623 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:25:22,626 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:25:22,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:25:22,627 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:25:22,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:25:22,628 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:25:22,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:25:22,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:25:22,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:25:22,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:25:22,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:25:22,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:25:22,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:25:22,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:25:22,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:25:22,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:25:22,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:25:22,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:25:22,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:25:22,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:25:22,635 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:25:22,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:25:22,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:25:22,637 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:25:22,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:25:22,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:25:22,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:25:22,638 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_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 [2022-11-20 20:25:22,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:25:23,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:25:23,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:25:23,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:25:23,027 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:25:23,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2022-11-20 20:25:26,129 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:25:26,372 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:25:26,372 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2022-11-20 20:25:26,385 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/data/39dc60348/651bca5ec622418789a6ffcfd68cb74a/FLAG097c7c80c [2022-11-20 20:25:26,400 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/data/39dc60348/651bca5ec622418789a6ffcfd68cb74a [2022-11-20 20:25:26,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:25:26,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:25:26,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:25:26,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:25:26,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:25:26,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755ba2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26, skipping insertion in model container [2022-11-20 20:25:26,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:25:26,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:25:26,650 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_1e743f56-20e6-4f8b-915b-f8e5c49a95df/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c[3064,3077] [2022-11-20 20:25:26,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:25:26,762 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:25:26,783 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_1e743f56-20e6-4f8b-915b-f8e5c49a95df/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c[3064,3077] [2022-11-20 20:25:26,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:25:26,869 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:25:26,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26 WrapperNode [2022-11-20 20:25:26,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:25:26,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:25:26,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:25:26,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:25:26,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,922 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 208 [2022-11-20 20:25:26,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:25:26,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:25:26,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:25:26,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:25:26,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:25:26,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:25:26,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:25:26,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:25:26,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (1/1) ... [2022-11-20 20:25:26,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:25:26,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:25:26,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:25:26,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:25:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:25:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 20:25:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 20:25:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 20:25:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 20:25:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 20:25:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 20:25:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 20:25:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 20:25:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-20 20:25:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-20 20:25:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-20 20:25:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-20 20:25:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-20 20:25:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-20 20:25:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:25:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 20:25:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 20:25:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:25:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:25:27,135 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:25:27,138 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:25:27,499 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:25:27,734 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:25:27,735 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 20:25:27,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:25:27 BoogieIcfgContainer [2022-11-20 20:25:27,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:25:27,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:25:27,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:25:27,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:25:27,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:25:26" (1/3) ... [2022-11-20 20:25:27,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a34e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:25:27, skipping insertion in model container [2022-11-20 20:25:27,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:26" (2/3) ... [2022-11-20 20:25:27,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a34e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:25:27, skipping insertion in model container [2022-11-20 20:25:27,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:25:27" (3/3) ... [2022-11-20 20:25:27,750 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2022-11-20 20:25:27,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:25:27,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:25:27,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:25:27,858 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;@7928aa87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:25:27,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:25:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-20 20:25:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 20:25:27,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:27,875 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:27,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:27,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1911075339, now seen corresponding path program 1 times [2022-11-20 20:25:27,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:27,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440004621] [2022-11-20 20:25:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:27,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:25:28,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:28,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440004621] [2022-11-20 20:25:28,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440004621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:28,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:28,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:25:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796826452] [2022-11-20 20:25:28,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:28,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:25:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:28,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:25:28,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:25:28,134 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:25:28,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:28,214 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-20 20:25:28,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:25:28,217 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-20 20:25:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:28,228 INFO L225 Difference]: With dead ends: 126 [2022-11-20 20:25:28,228 INFO L226 Difference]: Without dead ends: 59 [2022-11-20 20:25:28,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:25:28,236 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:28,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:25:28,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-20 20:25:28,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-20 20:25:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 20:25:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-20 20:25:28,300 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 21 [2022-11-20 20:25:28,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:28,301 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-20 20:25:28,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:25:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-20 20:25:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 20:25:28,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:28,304 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:28,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:25:28,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1425674059, now seen corresponding path program 1 times [2022-11-20 20:25:28,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:28,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558442095] [2022-11-20 20:25:28,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:28,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:28,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:25:28,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:28,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558442095] [2022-11-20 20:25:28,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558442095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:28,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:28,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:25:28,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571596593] [2022-11-20 20:25:28,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:28,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:25:28,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:25:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:25:28,518 INFO L87 Difference]: Start difference. First operand 59 states and 75 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:25:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:28,575 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2022-11-20 20:25:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:25:28,576 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-20 20:25:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:28,578 INFO L225 Difference]: With dead ends: 116 [2022-11-20 20:25:28,578 INFO L226 Difference]: Without dead ends: 59 [2022-11-20 20:25:28,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:25:28,581 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:28,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:25:28,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-20 20:25:28,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-20 20:25:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 44 states have internal predecessors, (47), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-20 20:25:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2022-11-20 20:25:28,596 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 24 [2022-11-20 20:25:28,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:28,598 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2022-11-20 20:25:28,598 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:25:28,599 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2022-11-20 20:25:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 20:25:28,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:28,601 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:28,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:25:28,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:28,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash 149706667, now seen corresponding path program 1 times [2022-11-20 20:25:28,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:28,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307126688] [2022-11-20 20:25:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:28,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:25:28,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:28,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307126688] [2022-11-20 20:25:28,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307126688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:28,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:28,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:25:28,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719488996] [2022-11-20 20:25:28,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:28,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:25:28,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:28,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:25:28,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:25:28,862 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 20:25:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:29,219 INFO L93 Difference]: Finished difference Result 164 states and 226 transitions. [2022-11-20 20:25:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:25:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-20 20:25:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:29,222 INFO L225 Difference]: With dead ends: 164 [2022-11-20 20:25:29,224 INFO L226 Difference]: Without dead ends: 107 [2022-11-20 20:25:29,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:25:29,230 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:29,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 339 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:25:29,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-20 20:25:29,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2022-11-20 20:25:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 73 states have internal predecessors, (80), 22 states have call successors, (22), 16 states have call predecessors, (22), 14 states have return successors, (28), 20 states have call predecessors, (28), 20 states have call successors, (28) [2022-11-20 20:25:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-11-20 20:25:29,257 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 31 [2022-11-20 20:25:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:29,258 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-11-20 20:25:29,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 20:25:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-11-20 20:25:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 20:25:29,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:29,261 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:29,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:25:29,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:29,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1933905367, now seen corresponding path program 1 times [2022-11-20 20:25:29,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:29,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906169886] [2022-11-20 20:25:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:29,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:25:29,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:29,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906169886] [2022-11-20 20:25:29,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906169886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:29,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:29,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:25:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013881485] [2022-11-20 20:25:29,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:29,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:25:29,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:29,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:25:29,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:25:29,345 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 20:25:29,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:29,395 INFO L93 Difference]: Finished difference Result 162 states and 198 transitions. [2022-11-20 20:25:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:25:29,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-20 20:25:29,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:29,402 INFO L225 Difference]: With dead ends: 162 [2022-11-20 20:25:29,405 INFO L226 Difference]: Without dead ends: 87 [2022-11-20 20:25:29,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:25:29,409 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:29,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:25:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-20 20:25:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-20 20:25:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 63 states have internal predecessors, (68), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2022-11-20 20:25:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2022-11-20 20:25:29,443 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 34 [2022-11-20 20:25:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:29,444 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2022-11-20 20:25:29,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 20:25:29,444 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2022-11-20 20:25:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 20:25:29,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:29,448 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:29,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:25:29,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:29,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2003657004, now seen corresponding path program 1 times [2022-11-20 20:25:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:29,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101306391] [2022-11-20 20:25:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:29,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:29,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:25:29,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:29,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101306391] [2022-11-20 20:25:29,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101306391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:29,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:29,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:25:29,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546831275] [2022-11-20 20:25:29,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:29,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:25:29,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:29,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:25:29,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:25:29,977 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:25:30,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:30,491 INFO L93 Difference]: Finished difference Result 301 states and 372 transitions. [2022-11-20 20:25:30,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 20:25:30,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2022-11-20 20:25:30,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:30,506 INFO L225 Difference]: With dead ends: 301 [2022-11-20 20:25:30,507 INFO L226 Difference]: Without dead ends: 216 [2022-11-20 20:25:30,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:25:30,510 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 169 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:30,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 426 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:25:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-20 20:25:30,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 208. [2022-11-20 20:25:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 147 states have internal predecessors, (161), 39 states have call successors, (39), 34 states have call predecessors, (39), 33 states have return successors, (51), 36 states have call predecessors, (51), 39 states have call successors, (51) [2022-11-20 20:25:30,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2022-11-20 20:25:30,574 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 36 [2022-11-20 20:25:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:30,575 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2022-11-20 20:25:30,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:25:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2022-11-20 20:25:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 20:25:30,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:30,583 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:30,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:25:30,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:30,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1526016149, now seen corresponding path program 1 times [2022-11-20 20:25:30,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:30,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234912319] [2022-11-20 20:25:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:30,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:25:30,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:30,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234912319] [2022-11-20 20:25:30,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234912319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:30,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:30,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:25:30,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264335450] [2022-11-20 20:25:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:30,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:25:30,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:25:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:25:30,795 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 20:25:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:31,508 INFO L93 Difference]: Finished difference Result 556 states and 709 transitions. [2022-11-20 20:25:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 20:25:31,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 39 [2022-11-20 20:25:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:31,515 INFO L225 Difference]: With dead ends: 556 [2022-11-20 20:25:31,515 INFO L226 Difference]: Without dead ends: 384 [2022-11-20 20:25:31,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-11-20 20:25:31,519 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 201 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:31,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 264 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:25:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-11-20 20:25:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 339. [2022-11-20 20:25:31,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 221 states have (on average 1.1809954751131222) internal successors, (261), 243 states have internal predecessors, (261), 62 states have call successors, (62), 52 states have call predecessors, (62), 55 states have return successors, (86), 58 states have call predecessors, (86), 62 states have call successors, (86) [2022-11-20 20:25:31,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 409 transitions. [2022-11-20 20:25:31,587 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 409 transitions. Word has length 39 [2022-11-20 20:25:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:31,588 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 409 transitions. [2022-11-20 20:25:31,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 20:25:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 409 transitions. [2022-11-20 20:25:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 20:25:31,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:31,591 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:31,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 20:25:31,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:31,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1605835483, now seen corresponding path program 1 times [2022-11-20 20:25:31,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:31,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086731888] [2022-11-20 20:25:31,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:31,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:31,761 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 20:25:31,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:31,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086731888] [2022-11-20 20:25:31,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086731888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:31,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:31,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 20:25:31,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902994376] [2022-11-20 20:25:31,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:31,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:25:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:31,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:25:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:25:31,765 INFO L87 Difference]: Start difference. First operand 339 states and 409 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-20 20:25:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:32,021 INFO L93 Difference]: Finished difference Result 692 states and 837 transitions. [2022-11-20 20:25:32,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 20:25:32,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 67 [2022-11-20 20:25:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:32,026 INFO L225 Difference]: With dead ends: 692 [2022-11-20 20:25:32,026 INFO L226 Difference]: Without dead ends: 367 [2022-11-20 20:25:32,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:25:32,031 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 76 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:32,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 125 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:25:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-20 20:25:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 348. [2022-11-20 20:25:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 230 states have (on average 1.1695652173913043) internal successors, (269), 250 states have internal predecessors, (269), 60 states have call successors, (60), 50 states have call predecessors, (60), 57 states have return successors, (87), 60 states have call predecessors, (87), 60 states have call successors, (87) [2022-11-20 20:25:32,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 416 transitions. [2022-11-20 20:25:32,099 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 416 transitions. Word has length 67 [2022-11-20 20:25:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:32,099 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 416 transitions. [2022-11-20 20:25:32,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-20 20:25:32,100 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 416 transitions. [2022-11-20 20:25:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 20:25:32,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:32,103 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:32,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 20:25:32,103 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:32,104 INFO L85 PathProgramCache]: Analyzing trace with hash -223573989, now seen corresponding path program 1 times [2022-11-20 20:25:32,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:32,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444189565] [2022-11-20 20:25:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 20:25:32,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:32,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444189565] [2022-11-20 20:25:32,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444189565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:25:32,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235918200] [2022-11-20 20:25:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:32,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:25:32,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:25:32,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:25:32,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:25:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:32,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 20:25:32,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:25:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 20:25:32,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:25:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 20:25:32,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235918200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:25:32,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1025135916] [2022-11-20 20:25:33,008 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-20 20:25:33,008 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:25:33,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:25:33,018 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:25:33,019 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:25:38,084 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2022-11-20 20:25:38,124 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-20 20:25:38,790 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-20 20:25:38,805 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 34 for LOIs [2022-11-20 20:25:39,030 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 60 for LOIs [2022-11-20 20:25:39,048 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 32 for LOIs [2022-11-20 20:25:39,051 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:25:47,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5671#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (= ~head~0.base 0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-20 20:25:47,663 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:25:47,663 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:25:47,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 15 [2022-11-20 20:25:47,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467344082] [2022-11-20 20:25:47,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:25:47,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 20:25:47,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:47,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 20:25:47,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2022-11-20 20:25:47,667 INFO L87 Difference]: Start difference. First operand 348 states and 416 transitions. Second operand has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 20:25:49,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:49,216 INFO L93 Difference]: Finished difference Result 632 states and 785 transitions. [2022-11-20 20:25:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 20:25:49,221 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) Word has length 71 [2022-11-20 20:25:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:49,223 INFO L225 Difference]: With dead ends: 632 [2022-11-20 20:25:49,223 INFO L226 Difference]: Without dead ends: 339 [2022-11-20 20:25:49,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2022-11-20 20:25:49,227 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 581 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:49,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 308 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 20:25:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-20 20:25:49,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 309. [2022-11-20 20:25:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 200 states have (on average 1.175) internal successors, (235), 221 states have internal predecessors, (235), 57 states have call successors, (57), 49 states have call predecessors, (57), 51 states have return successors, (79), 53 states have call predecessors, (79), 57 states have call successors, (79) [2022-11-20 20:25:49,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 371 transitions. [2022-11-20 20:25:49,266 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 371 transitions. Word has length 71 [2022-11-20 20:25:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:49,266 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 371 transitions. [2022-11-20 20:25:49,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 20:25:49,267 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 371 transitions. [2022-11-20 20:25:49,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 20:25:49,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:49,269 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:49,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:25:49,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:25:49,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:49,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1554175055, now seen corresponding path program 1 times [2022-11-20 20:25:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:49,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164329341] [2022-11-20 20:25:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:25:49,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:49,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164329341] [2022-11-20 20:25:49,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164329341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:25:49,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267466509] [2022-11-20 20:25:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:49,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:25:49,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:25:49,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:25:49,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:25:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:50,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-20 20:25:50,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:25:50,641 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:25:50,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:25:51,438 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:25:51,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267466509] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:25:51,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [12705750] [2022-11-20 20:25:51,442 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-20 20:25:51,442 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:25:51,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:25:51,443 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:25:51,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:25:54,780 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 143 for LOIs [2022-11-20 20:25:54,808 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-20 20:25:54,969 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 58 for LOIs [2022-11-20 20:25:54,983 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-20 20:25:55,228 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-11-20 20:25:55,231 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 28 for LOIs [2022-11-20 20:25:55,232 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:26:01,806 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7654#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-20 20:26:01,807 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 20:26:01,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:26:01,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 32 [2022-11-20 20:26:01,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433595236] [2022-11-20 20:26:01,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 20:26:01,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-20 20:26:01,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:26:01,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-20 20:26:01,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=3419, Unknown=0, NotChecked=0, Total=3906 [2022-11-20 20:26:01,821 INFO L87 Difference]: Start difference. First operand 309 states and 371 transitions. Second operand has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-20 20:26:04,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:26:04,861 INFO L93 Difference]: Finished difference Result 773 states and 968 transitions. [2022-11-20 20:26:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 20:26:04,862 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) Word has length 72 [2022-11-20 20:26:04,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:26:04,863 INFO L225 Difference]: With dead ends: 773 [2022-11-20 20:26:04,863 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:26:04,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 169 SyntacticMatches, 9 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4022 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1633, Invalid=9287, Unknown=0, NotChecked=0, Total=10920 [2022-11-20 20:26:04,869 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 925 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:26:04,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 435 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 20:26:04,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:26:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:26:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:26:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:26:04,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2022-11-20 20:26:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:26:04,872 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:26:04,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-20 20:26:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:26:04,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:26:04,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 20:26:04,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 20:26:05,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:26:05,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:26:10,432 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 610 616) no Hoare annotation was computed. [2022-11-20 20:26:10,433 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 610 616) the Hoare annotation is: true [2022-11-20 20:26:10,434 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-20 20:26:10,434 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-20 20:26:10,434 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 901) no Hoare annotation was computed. [2022-11-20 20:26:10,434 INFO L902 garLoopResultBuilder]: At program point L897-1(lines 897 901) the Hoare annotation is: true [2022-11-20 20:26:10,435 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 883 912) no Hoare annotation was computed. [2022-11-20 20:26:10,435 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 883 912) the Hoare annotation is: true [2022-11-20 20:26:10,435 INFO L902 garLoopResultBuilder]: At program point L893-2(lines 893 907) the Hoare annotation is: true [2022-11-20 20:26:10,435 INFO L902 garLoopResultBuilder]: At program point L889(line 889) the Hoare annotation is: true [2022-11-20 20:26:10,435 INFO L899 garLoopResultBuilder]: For program point L889-1(line 889) no Hoare annotation was computed. [2022-11-20 20:26:10,436 INFO L902 garLoopResultBuilder]: At program point L908(lines 883 912) the Hoare annotation is: true [2022-11-20 20:26:10,436 INFO L899 garLoopResultBuilder]: For program point L904(line 904) no Hoare annotation was computed. [2022-11-20 20:26:10,437 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-20 20:26:10,439 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and .cse0 .cse1) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse6 .cse2 .cse1) (or .cse6 .cse0 .cse2 (and .cse3 .cse4 .cse5)))) [2022-11-20 20:26:10,443 INFO L895 garLoopResultBuilder]: At program point L663-1(lines 644 668) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 1))) (let ((.cse1 (and (= 2 ~waterLevel~0) .cse11 .cse8 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (or .cse7 .cse5))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse11)) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (or .cse8 (= ~waterLevel~0 1)))) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 (<= ~waterLevel~0 1) .cse3))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse7 .cse8 .cse4) .cse1 .cse9) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse10)) .cse4 .cse5) .cse0 (and .cse6 .cse7 .cse10) .cse2 .cse9))))) [2022-11-20 20:26:10,445 INFO L895 garLoopResultBuilder]: At program point L597-1(lines 597 603) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 1))) (let ((.cse1 (and (= 2 ~waterLevel~0) .cse11 .cse8 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (or .cse7 .cse5))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse11)) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (or .cse8 (= ~waterLevel~0 1)))) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 (<= ~waterLevel~0 1) .cse3))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse7 .cse8 .cse4) .cse1 .cse9) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse10)) .cse4 .cse5) .cse0 (and .cse6 .cse7 .cse10) .cse2 .cse9))))) [2022-11-20 20:26:10,446 INFO L895 garLoopResultBuilder]: At program point L556(line 556) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse2 .cse3 .cse4 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1|))) (or .cse0 .cse1 .cse5) (let ((.cse8 (<= ~waterLevel~0 1)) (.cse9 (or .cse3 (= ~waterLevel~0 1)))) (or .cse1 .cse6 .cse5 (and .cse7 .cse2 .cse8 .cse9) (and .cse8 .cse9 .cse4 .cse10))) (let ((.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse11)) .cse4 .cse10) .cse1 (and .cse7 .cse2 .cse11) .cse6 (not (< |old(~waterLevel~0)| 3)))))) [2022-11-20 20:26:10,446 INFO L899 garLoopResultBuilder]: For program point L556-1(line 556) no Hoare annotation was computed. [2022-11-20 20:26:10,446 INFO L899 garLoopResultBuilder]: For program point L590-2(lines 586 608) no Hoare annotation was computed. [2022-11-20 20:26:10,446 INFO L895 garLoopResultBuilder]: At program point L652(lines 652 660) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-20 20:26:10,447 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 665) no Hoare annotation was computed. [2022-11-20 20:26:10,447 INFO L895 garLoopResultBuilder]: At program point L541(line 541) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 (and .cse7 .cse8 .cse4)) (or .cse9 .cse6 .cse1 .cse3 .cse10) (or (and .cse6 .cse2) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8) .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse5 (and .cse8 .cse4 (= ~pumpRunning~0 1)) .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse9 .cse7 .cse8) .cse10))) [2022-11-20 20:26:10,447 INFO L895 garLoopResultBuilder]: At program point L541-1(line 541) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret32#1|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse3 (= ~pumpRunning~0 1)) .cse2 .cse6 (not (< |old(~waterLevel~0)| 3))) (or (and .cse1 .cse6) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse5) .cse7) (or .cse0 .cse1 .cse2 .cse7 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2 (and (= ~pumpRunning~0 0) .cse4 .cse5)))) [2022-11-20 20:26:10,447 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 568) no Hoare annotation was computed. [2022-11-20 20:26:10,448 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 571) no Hoare annotation was computed. [2022-11-20 20:26:10,449 INFO L895 garLoopResultBuilder]: At program point L554-1(lines 546 574) the Hoare annotation is: (let ((.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse11 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse12 (= ~pumpRunning~0 1)) (.cse7 (not (= ~switchedOnBeforeTS~0 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse14 (<= ~waterLevel~0 1)) (.cse9 (= 1 ~systemActive~0)) (.cse15 (or .cse13 (= ~waterLevel~0 1)))) (let ((.cse1 (and .cse7 .cse8 .cse14 .cse9 .cse15)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (and .cse14 .cse15 .cse11 .cse12)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not .cse9)) (.cse6 (and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2) (= 2 ~waterLevel~0) .cse9 .cse13 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse12) (or .cse8 .cse12)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse2 .cse6 .cse3 .cse4 .cse5) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse2 (and .cse7 .cse8 .cse9 .cse10) .cse3 (and (not (< 0 ~waterLevel~0)) .cse10 .cse11 .cse12))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse6 (and .cse8 .cse9 .cse13 .cse11 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1|)) (not (< |old(~waterLevel~0)| 3))))))) [2022-11-20 20:26:10,449 INFO L895 garLoopResultBuilder]: At program point L658(line 658) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-20 20:26:10,449 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 583 609) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 (and .cse7 .cse8 .cse4)) (or .cse9 .cse6 .cse1 .cse3 .cse10) (or (and .cse6 .cse2) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8) .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse5 (and .cse8 .cse4 (= ~pumpRunning~0 1)) .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse9 .cse7 .cse8) .cse10))) [2022-11-20 20:26:10,451 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 565) no Hoare annotation was computed. [2022-11-20 20:26:10,451 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 583 609) no Hoare annotation was computed. [2022-11-20 20:26:10,451 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-20 20:26:10,451 INFO L899 garLoopResultBuilder]: For program point L650-1(line 650) no Hoare annotation was computed. [2022-11-20 20:26:10,451 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2022-11-20 20:26:10,452 INFO L895 garLoopResultBuilder]: At program point L832(lines 789 834) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse2 (or .cse4 .cse3)) (and .cse4 .cse0 .cse1 .cse2))) [2022-11-20 20:26:10,452 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 805) no Hoare annotation was computed. [2022-11-20 20:26:10,452 INFO L899 garLoopResultBuilder]: For program point L799-1(lines 799 805) no Hoare annotation was computed. [2022-11-20 20:26:10,453 INFO L895 garLoopResultBuilder]: At program point L965(lines 965 972) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-20 20:26:10,453 INFO L902 garLoopResultBuilder]: At program point L965-2(lines 965 972) the Hoare annotation is: true [2022-11-20 20:26:10,453 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 20:26:10,453 INFO L895 garLoopResultBuilder]: At program point L825-2(lines 819 830) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-20 20:26:10,453 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 815) no Hoare annotation was computed. [2022-11-20 20:26:10,454 INFO L899 garLoopResultBuilder]: For program point L809-1(lines 809 815) no Hoare annotation was computed. [2022-11-20 20:26:10,454 INFO L902 garLoopResultBuilder]: At program point L838(lines 779 842) the Hoare annotation is: true [2022-11-20 20:26:10,454 INFO L895 garLoopResultBuilder]: At program point L801(line 801) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse2 (or .cse4 .cse3)) (and .cse4 .cse0 .cse1 .cse2))) [2022-11-20 20:26:10,455 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:26:10,455 INFO L895 garLoopResultBuilder]: At program point L835(lines 788 836) the Hoare annotation is: false [2022-11-20 20:26:10,455 INFO L899 garLoopResultBuilder]: For program point L790(lines 789 834) no Hoare annotation was computed. [2022-11-20 20:26:10,455 INFO L895 garLoopResultBuilder]: At program point L811(line 811) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-20 20:26:10,455 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-20 20:26:10,456 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse1 (and .cse4 .cse2) (not (= |old(~waterLevel~0)| 2)) .cse3))) [2022-11-20 20:26:10,456 INFO L895 garLoopResultBuilder]: At program point L632(line 632) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse2))) [2022-11-20 20:26:10,456 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 634) no Hoare annotation was computed. [2022-11-20 20:26:10,456 INFO L895 garLoopResultBuilder]: At program point L622(lines 622 639) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-20 20:26:10,456 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= 2 ~waterLevel~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse1))) [2022-11-20 20:26:10,457 INFO L895 garLoopResultBuilder]: At program point L682-1(line 682) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= 2 ~waterLevel~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse1))) [2022-11-20 20:26:10,457 INFO L895 garLoopResultBuilder]: At program point L637(line 637) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-20 20:26:10,457 INFO L899 garLoopResultBuilder]: For program point L637-1(lines 618 642) no Hoare annotation was computed. [2022-11-20 20:26:10,458 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 618 642) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-20 20:26:10,458 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 618 642) no Hoare annotation was computed. [2022-11-20 20:26:10,458 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 713 721) no Hoare annotation was computed. [2022-11-20 20:26:10,459 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 713 721) the Hoare annotation is: true [2022-11-20 20:26:10,459 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 702 712) the Hoare annotation is: true [2022-11-20 20:26:10,459 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 702 712) no Hoare annotation was computed. [2022-11-20 20:26:10,463 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:26:10,466 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:26:10,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:26:10 BoogieIcfgContainer [2022-11-20 20:26:10,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:26:10,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:26:10,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:26:10,536 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:26:10,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:25:27" (3/4) ... [2022-11-20 20:26:10,539 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:26:10,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 20:26:10,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 20:26:10,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 20:26:10,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 20:26:10,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 20:26:10,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-20 20:26:10,547 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-20 20:26:10,548 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-20 20:26:10,559 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-11-20 20:26:10,564 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 20:26:10,565 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 20:26:10,565 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:26:10,566 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:26:10,603 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) && !(\old(pumpRunning) == 1)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) [2022-11-20 20:26:10,604 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:26:10,604 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && (((((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || ((((pumpRunning == 0 && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && \old(waterLevel) == tmp)) || !(\old(waterLevel) < 3)) [2022-11-20 20:26:10,605 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-20 20:26:10,605 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-20 20:26:10,605 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) [2022-11-20 20:26:10,605 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) [2022-11-20 20:26:10,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 == waterLevel && tmp == 1) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) [2022-11-20 20:26:10,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:26:10,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:26:10,652 INFO L158 Benchmark]: Toolchain (without parser) took 44247.48ms. Allocated memory was 155.2MB in the beginning and 432.0MB in the end (delta: 276.8MB). Free memory was 110.4MB in the beginning and 371.0MB in the end (delta: -260.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,652 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 95.0MB in the beginning and 95.0MB in the end (delta: 25.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:26:10,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.87ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 91.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.54ms. Allocated memory is still 155.2MB. Free memory was 91.6MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,653 INFO L158 Benchmark]: Boogie Preprocessor took 31.59ms. Allocated memory is still 155.2MB. Free memory was 89.4MB in the beginning and 88.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,654 INFO L158 Benchmark]: RCFGBuilder took 781.96ms. Allocated memory is still 155.2MB. Free memory was 88.0MB in the beginning and 121.5MB in the end (delta: -33.5MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,654 INFO L158 Benchmark]: TraceAbstraction took 42794.97ms. Allocated memory was 155.2MB in the beginning and 432.0MB in the end (delta: 276.8MB). Free memory was 120.6MB in the beginning and 376.3MB in the end (delta: -255.6MB). Peak memory consumption was 257.8MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,655 INFO L158 Benchmark]: Witness Printer took 115.94ms. Allocated memory is still 432.0MB. Free memory was 376.3MB in the beginning and 371.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 20:26:10,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 95.0MB in the beginning and 95.0MB in the end (delta: 25.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.87ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 91.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.54ms. Allocated memory is still 155.2MB. Free memory was 91.6MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.59ms. Allocated memory is still 155.2MB. Free memory was 89.4MB in the beginning and 88.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 781.96ms. Allocated memory is still 155.2MB. Free memory was 88.0MB in the beginning and 121.5MB in the end (delta: -33.5MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * TraceAbstraction took 42794.97ms. Allocated memory was 155.2MB in the beginning and 432.0MB in the end (delta: 276.8MB). Free memory was 120.6MB in the beginning and 376.3MB in the end (delta: -255.6MB). Peak memory consumption was 257.8MB. Max. memory is 16.1GB. * Witness Printer took 115.94ms. Allocated memory is still 432.0MB. Free memory was 376.3MB in the beginning and 371.0MB 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: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.6s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2099 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2078 mSDsluCounter, 2108 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1522 mSDsCounter, 1288 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2730 IncrementalHoareTripleChecker+Invalid, 4018 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1288 mSolverCounterUnsat, 586 mSDtfsCounter, 2730 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 604 GetRequests, 375 SyntacticMatches, 14 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6009 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=7, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 1332 PreInvPairs, 1552 NumberOfFragments, 1999 HoareAnnotationTreeSize, 1332 FomulaSimplifications, 5325 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 37 FomulaSimplificationsInter, 18318 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 538 NumberOfCodeBlocks, 538 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 2002 SizeOfPredicates, 19 NumberOfNonLiveVariables, 665 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 166/228 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: 597]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 652]: Loop Invariant Derived loop invariant: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: (((((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && (pumpRunning == 0 || pumpRunning == 1))) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && (((((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || ((((pumpRunning == 0 && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && \old(waterLevel) == tmp)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) && !(\old(pumpRunning) == 1)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 883]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 == waterLevel && tmp == 1) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 779]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 20:26:10,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e743f56-20e6-4f8b-915b-f8e5c49a95df/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE