./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI --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 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 --- 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-5e519f3 [2022-11-03 02:16:54,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:16:54,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:16:54,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:16:54,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:16:54,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:16:54,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:16:54,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:16:54,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:16:54,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:16:54,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:16:54,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:16:54,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:16:54,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:16:54,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:16:54,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:16:54,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:16:54,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:16:54,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:16:54,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:16:54,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:16:54,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:16:54,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:16:54,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:16:54,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:16:54,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:16:54,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:16:54,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:16:54,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:16:54,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:16:54,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:16:54,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:16:54,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:16:54,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:16:54,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:16:54,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:16:54,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:16:54,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:16:54,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:16:54,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:16:54,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:16:54,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:16:54,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:16:54,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:16:54,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:16:54,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:16:54,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:16:54,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:16:54,568 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:16:54,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:16:54,568 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:16:54,568 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:16:54,570 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:16:54,570 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:16:54,570 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:16:54,570 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:16:54,570 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:16:54,571 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:16:54,571 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:16:54,571 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:16:54,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:16:54,572 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:16:54,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:16:54,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:16:54,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:16:54,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:16:54,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:16:54,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:16:54,574 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:16:54,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:16:54,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:16:54,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:16:54,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:16:54,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:16:54,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:16:54,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:16:54,576 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:16:54,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:16:54,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:16:54,576 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:16:54,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:16:54,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:16:54,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:16:54,577 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_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 [2022-11-03 02:16:54,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:16:54,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:16:54,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:16:54,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:16:54,875 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:16:54,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2022-11-03 02:16:54,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/data/3abdfdd5c/987798486e894888aa7d12caf2baa233/FLAG30714c0d7 [2022-11-03 02:16:55,510 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:16:55,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2022-11-03 02:16:55,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/data/3abdfdd5c/987798486e894888aa7d12caf2baa233/FLAG30714c0d7 [2022-11-03 02:16:55,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/data/3abdfdd5c/987798486e894888aa7d12caf2baa233 [2022-11-03 02:16:55,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:16:55,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:16:55,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:16:55,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:16:55,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:16:55,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:16:55" (1/1) ... [2022-11-03 02:16:55,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a58d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:55, skipping insertion in model container [2022-11-03 02:16:55,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:16:55" (1/1) ... [2022-11-03 02:16:55,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:16:55,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:16:56,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c[17098,17111] [2022-11-03 02:16:56,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:16:56,227 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:16:56,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c[17098,17111] [2022-11-03 02:16:56,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:16:56,314 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:16:56,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56 WrapperNode [2022-11-03 02:16:56,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:16:56,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:16:56,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:16:56,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:16:56,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,394 INFO L138 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 262 [2022-11-03 02:16:56,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:16:56,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:16:56,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:16:56,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:16:56,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:16:56,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:16:56,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:16:56,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:16:56,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (1/1) ... [2022-11-03 02:16:56,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:16:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:16:56,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:16:56,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:16:56,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:16:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:16:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:16:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:16:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:16:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:16:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:16:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:16:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:16:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:16:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:16:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 02:16:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 02:16:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 02:16:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 02:16:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:16:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:16:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:16:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:16:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:16:56,609 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:16:56,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:16:56,970 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:16:57,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:16:57,192 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:16:57,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:57 BoogieIcfgContainer [2022-11-03 02:16:57,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:16:57,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:16:57,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:16:57,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:16:57,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:16:55" (1/3) ... [2022-11-03 02:16:57,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffdbf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:57, skipping insertion in model container [2022-11-03 02:16:57,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:16:56" (2/3) ... [2022-11-03 02:16:57,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffdbf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:16:57, skipping insertion in model container [2022-11-03 02:16:57,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:57" (3/3) ... [2022-11-03 02:16:57,205 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2022-11-03 02:16:57,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:16:57,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:16:57,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:16:57,318 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;@5b5210f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:16:57,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:16:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 02:16:57,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:16:57,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:57,339 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] [2022-11-03 02:16:57,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1320828435, now seen corresponding path program 1 times [2022-11-03 02:16:57,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:57,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951411023] [2022-11-03 02:16:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:57,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:16:57,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:57,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951411023] [2022-11-03 02:16:57,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951411023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:57,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:57,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:16:57,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086396047] [2022-11-03 02:16:57,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:57,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:16:57,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:16:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:16:57,739 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 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) [2022-11-03 02:16:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:57,851 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-03 02:16:57,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:16:57,854 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 [2022-11-03 02:16:57,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:57,863 INFO L225 Difference]: With dead ends: 130 [2022-11-03 02:16:57,863 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 02:16:57,866 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 [2022-11-03 02:16:57,869 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:57,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:16:57,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 02:16:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-03 02:16:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 02:16:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-03 02:16:57,925 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 21 [2022-11-03 02:16:57,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:57,926 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-03 02:16:57,926 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) [2022-11-03 02:16:57,926 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-03 02:16:57,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:16:57,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:57,929 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] [2022-11-03 02:16:57,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:16:57,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:57,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash -346590503, now seen corresponding path program 1 times [2022-11-03 02:16:57,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:57,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662972044] [2022-11-03 02:16:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:16:58,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:58,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662972044] [2022-11-03 02:16:58,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662972044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:58,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:58,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:58,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679545193] [2022-11-03 02:16:58,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:58,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:58,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:58,027 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-03 02:16:58,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:58,086 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-03 02:16:58,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:58,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 22 [2022-11-03 02:16:58,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:58,089 INFO L225 Difference]: With dead ends: 94 [2022-11-03 02:16:58,091 INFO L226 Difference]: Without dead ends: 53 [2022-11-03 02:16:58,092 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 [2022-11-03 02:16:58,094 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:58,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-03 02:16:58,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-03 02:16:58,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 02:16:58,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-03 02:16:58,112 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 22 [2022-11-03 02:16:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:58,114 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-03 02:16:58,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-03 02:16:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-03 02:16:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:16:58,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:58,120 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] [2022-11-03 02:16:58,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:16:58,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:58,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:58,131 INFO L85 PathProgramCache]: Analyzing trace with hash -840745623, now seen corresponding path program 1 times [2022-11-03 02:16:58,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:58,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713819195] [2022-11-03 02:16:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:58,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:16:58,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:58,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713819195] [2022-11-03 02:16:58,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713819195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:58,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:58,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:16:58,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754610452] [2022-11-03 02:16:58,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:58,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:16:58,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:58,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:16:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:16:58,336 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-03 02:16:58,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:58,494 INFO L93 Difference]: Finished difference Result 140 states and 183 transitions. [2022-11-03 02:16:58,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:16:58,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 25 [2022-11-03 02:16:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:58,499 INFO L225 Difference]: With dead ends: 140 [2022-11-03 02:16:58,499 INFO L226 Difference]: Without dead ends: 89 [2022-11-03 02:16:58,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:58,501 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:58,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 146 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:16:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-03 02:16:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-11-03 02:16:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (18), 13 states have call predecessors, (18), 17 states have call successors, (18) [2022-11-03 02:16:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-11-03 02:16:58,533 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 25 [2022-11-03 02:16:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:58,533 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-11-03 02:16:58,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-03 02:16:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2022-11-03 02:16:58,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 02:16:58,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:58,535 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] [2022-11-03 02:16:58,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:16:58,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 470425358, now seen corresponding path program 1 times [2022-11-03 02:16:58,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:58,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390525640] [2022-11-03 02:16:58,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:58,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:16:58,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:58,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390525640] [2022-11-03 02:16:58,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390525640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:58,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:58,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:16:58,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194606046] [2022-11-03 02:16:58,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:58,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:16:58,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:58,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:16:58,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:16:58,756 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:16:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:58,962 INFO L93 Difference]: Finished difference Result 209 states and 282 transitions. [2022-11-03 02:16:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:16:58,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-03 02:16:58,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:58,966 INFO L225 Difference]: With dead ends: 209 [2022-11-03 02:16:58,967 INFO L226 Difference]: Without dead ends: 125 [2022-11-03 02:16:58,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:16:58,969 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:58,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 270 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:16:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-03 02:16:58,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 118. [2022-11-03 02:16:58,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 89 states have internal predecessors, (102), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2022-11-03 02:16:58,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 150 transitions. [2022-11-03 02:16:58,988 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 150 transitions. Word has length 28 [2022-11-03 02:16:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:58,989 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 150 transitions. [2022-11-03 02:16:58,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:16:58,990 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 150 transitions. [2022-11-03 02:16:58,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:16:58,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:58,991 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] [2022-11-03 02:16:58,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:16:58,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:58,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:58,992 INFO L85 PathProgramCache]: Analyzing trace with hash 988208288, now seen corresponding path program 1 times [2022-11-03 02:16:58,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:58,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838351342] [2022-11-03 02:16:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:58,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:16:59,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:59,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838351342] [2022-11-03 02:16:59,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838351342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:59,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:59,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:16:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233783098] [2022-11-03 02:16:59,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:59,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:16:59,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:59,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:16:59,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:16:59,295 INFO L87 Difference]: Start difference. First operand 118 states and 150 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 02:16:59,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:59,475 INFO L93 Difference]: Finished difference Result 369 states and 474 transitions. [2022-11-03 02:16:59,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:16:59,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2022-11-03 02:16:59,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:59,478 INFO L225 Difference]: With dead ends: 369 [2022-11-03 02:16:59,478 INFO L226 Difference]: Without dead ends: 253 [2022-11-03 02:16:59,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:16:59,480 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 123 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:59,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 243 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:16:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-11-03 02:16:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2022-11-03 02:16:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 165 states have (on average 1.290909090909091) internal successors, (213), 183 states have internal predecessors, (213), 44 states have call successors, (44), 37 states have call predecessors, (44), 36 states have return successors, (58), 39 states have call predecessors, (58), 44 states have call successors, (58) [2022-11-03 02:16:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 315 transitions. [2022-11-03 02:16:59,516 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 315 transitions. Word has length 33 [2022-11-03 02:16:59,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:59,517 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 315 transitions. [2022-11-03 02:16:59,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 02:16:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 315 transitions. [2022-11-03 02:16:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 02:16:59,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:59,519 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] [2022-11-03 02:16:59,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:16:59,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash -397904101, now seen corresponding path program 1 times [2022-11-03 02:16:59,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:59,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381811438] [2022-11-03 02:16:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:59,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:16:59,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:59,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381811438] [2022-11-03 02:16:59,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381811438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:59,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:59,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:16:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969102222] [2022-11-03 02:16:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:59,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:59,561 INFO L87 Difference]: Start difference. First operand 246 states and 315 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:16:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:59,624 INFO L93 Difference]: Finished difference Result 496 states and 634 transitions. [2022-11-03 02:16:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:59,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2022-11-03 02:16:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:59,627 INFO L225 Difference]: With dead ends: 496 [2022-11-03 02:16:59,627 INFO L226 Difference]: Without dead ends: 252 [2022-11-03 02:16:59,628 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 [2022-11-03 02:16:59,629 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 30 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:59,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 126 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-03 02:16:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 246. [2022-11-03 02:16:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 165 states have (on average 1.2787878787878788) internal successors, (211), 183 states have internal predecessors, (211), 44 states have call successors, (44), 37 states have call predecessors, (44), 36 states have return successors, (53), 39 states have call predecessors, (53), 44 states have call successors, (53) [2022-11-03 02:16:59,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 308 transitions. [2022-11-03 02:16:59,678 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 308 transitions. Word has length 39 [2022-11-03 02:16:59,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:59,680 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 308 transitions. [2022-11-03 02:16:59,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:16:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 308 transitions. [2022-11-03 02:16:59,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:16:59,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:59,689 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] [2022-11-03 02:16:59,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:16:59,689 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:59,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:59,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1221890422, now seen corresponding path program 1 times [2022-11-03 02:16:59,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:59,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124022622] [2022-11-03 02:16:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:59,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:00,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:17:00,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:00,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124022622] [2022-11-03 02:17:00,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124022622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:00,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:00,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:17:00,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071831053] [2022-11-03 02:17:00,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:00,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:17:00,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:00,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:17:00,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:17:00,066 INFO L87 Difference]: Start difference. First operand 246 states and 308 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:17:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:00,634 INFO L93 Difference]: Finished difference Result 568 states and 729 transitions. [2022-11-03 02:17:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:17:00,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 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 [2022-11-03 02:17:00,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:00,638 INFO L225 Difference]: With dead ends: 568 [2022-11-03 02:17:00,638 INFO L226 Difference]: Without dead ends: 415 [2022-11-03 02:17:00,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:17:00,640 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 229 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:00,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 265 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:17:00,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-03 02:17:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 344. [2022-11-03 02:17:00,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 234 states have (on average 1.2692307692307692) internal successors, (297), 259 states have internal predecessors, (297), 59 states have call successors, (59), 46 states have call predecessors, (59), 50 states have return successors, (74), 57 states have call predecessors, (74), 59 states have call successors, (74) [2022-11-03 02:17:00,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 430 transitions. [2022-11-03 02:17:00,687 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 430 transitions. Word has length 36 [2022-11-03 02:17:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:00,687 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 430 transitions. [2022-11-03 02:17:00,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:17:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 430 transitions. [2022-11-03 02:17:00,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:17:00,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:00,690 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:00,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:17:00,690 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:00,690 INFO L85 PathProgramCache]: Analyzing trace with hash 194619655, now seen corresponding path program 1 times [2022-11-03 02:17:00,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:00,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508841486] [2022-11-03 02:17:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:00,855 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:17:00,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:00,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508841486] [2022-11-03 02:17:00,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508841486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:17:00,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235342894] [2022-11-03 02:17:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:00,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:17:00,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:00,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:17:00,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:17:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:00,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:17:00,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:17:01,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:01,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235342894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:01,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:17:01,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-03 02:17:01,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604349206] [2022-11-03 02:17:01,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:01,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:01,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:01,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:01,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:17:01,067 INFO L87 Difference]: Start difference. First operand 344 states and 430 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:17:01,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:01,253 INFO L93 Difference]: Finished difference Result 613 states and 771 transitions. [2022-11-03 02:17:01,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:01,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2022-11-03 02:17:01,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:01,257 INFO L225 Difference]: With dead ends: 613 [2022-11-03 02:17:01,258 INFO L226 Difference]: Without dead ends: 334 [2022-11-03 02:17:01,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:17:01,262 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 33 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:01,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 121 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:17:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-11-03 02:17:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-11-03 02:17:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 227 states have (on average 1.2378854625550662) internal successors, (281), 250 states have internal predecessors, (281), 57 states have call successors, (57), 46 states have call predecessors, (57), 49 states have return successors, (64), 55 states have call predecessors, (64), 57 states have call successors, (64) [2022-11-03 02:17:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 402 transitions. [2022-11-03 02:17:01,329 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 402 transitions. Word has length 62 [2022-11-03 02:17:01,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:01,330 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 402 transitions. [2022-11-03 02:17:01,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:17:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 402 transitions. [2022-11-03 02:17:01,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-03 02:17:01,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:01,333 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] [2022-11-03 02:17:01,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:17:01,552 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:01,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1265051135, now seen corresponding path program 1 times [2022-11-03 02:17:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:01,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431183944] [2022-11-03 02:17:01,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:17:01,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:01,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431183944] [2022-11-03 02:17:01,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431183944] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:17:01,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252917314] [2022-11-03 02:17:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:01,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:17:01,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:01,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:17:01,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:17:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:01,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:17:01,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:17:02,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:17:02,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252917314] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:02,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1262306608] [2022-11-03 02:17:02,255 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2022-11-03 02:17:02,256 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:17:02,259 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:17:02,264 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:17:02,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:17:11,596 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 306 for LOIs [2022-11-03 02:17:11,697 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-03 02:17:12,040 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-03 02:17:12,052 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 64 for LOIs [2022-11-03 02:17:12,342 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 40 for LOIs [2022-11-03 02:17:12,347 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:17:25,367 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7029#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:17:25,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:17:25,368 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:17:25,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2022-11-03 02:17:25,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118167362] [2022-11-03 02:17:25,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:17:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:17:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:17:25,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1769, Unknown=0, NotChecked=0, Total=1980 [2022-11-03 02:17:25,372 INFO L87 Difference]: Start difference. First operand 334 states and 402 transitions. Second operand has 13 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-03 02:17:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:26,271 INFO L93 Difference]: Finished difference Result 476 states and 587 transitions. [2022-11-03 02:17:26,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-03 02:17:26,272 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) Word has length 65 [2022-11-03 02:17:26,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:26,275 INFO L225 Difference]: With dead ends: 476 [2022-11-03 02:17:26,275 INFO L226 Difference]: Without dead ends: 474 [2022-11-03 02:17:26,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 162 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=375, Invalid=3657, Unknown=0, NotChecked=0, Total=4032 [2022-11-03 02:17:26,278 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 210 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:26,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 771 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:17:26,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-03 02:17:26,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 398. [2022-11-03 02:17:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 268 states have (on average 1.2388059701492538) internal successors, (332), 299 states have internal predecessors, (332), 69 states have call successors, (69), 57 states have call predecessors, (69), 60 states have return successors, (80), 65 states have call predecessors, (80), 69 states have call successors, (80) [2022-11-03 02:17:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 481 transitions. [2022-11-03 02:17:26,318 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 481 transitions. Word has length 65 [2022-11-03 02:17:26,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:26,318 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 481 transitions. [2022-11-03 02:17:26,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (17), 4 states have call predecessors, (17), 7 states have return successors, (17), 8 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-03 02:17:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 481 transitions. [2022-11-03 02:17:26,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 02:17:26,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:26,321 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:17:26,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:17:26,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-03 02:17:26,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash 636571567, now seen corresponding path program 1 times [2022-11-03 02:17:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:26,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085908034] [2022-11-03 02:17:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-03 02:17:26,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:26,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085908034] [2022-11-03 02:17:26,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085908034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:26,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:17:26,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:17:26,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807464665] [2022-11-03 02:17:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:26,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:17:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:17:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:17:26,660 INFO L87 Difference]: Start difference. First operand 398 states and 481 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-03 02:17:26,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:26,898 INFO L93 Difference]: Finished difference Result 963 states and 1171 transitions. [2022-11-03 02:17:26,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:17:26,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 86 [2022-11-03 02:17:26,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:26,904 INFO L225 Difference]: With dead ends: 963 [2022-11-03 02:17:26,904 INFO L226 Difference]: Without dead ends: 727 [2022-11-03 02:17:26,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:17:26,906 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 131 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:26,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 227 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:17:26,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-03 02:17:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 716. [2022-11-03 02:17:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 485 states have (on average 1.2350515463917526) internal successors, (599), 536 states have internal predecessors, (599), 122 states have call successors, (122), 105 states have call predecessors, (122), 108 states have return successors, (136), 115 states have call predecessors, (136), 122 states have call successors, (136) [2022-11-03 02:17:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 857 transitions. [2022-11-03 02:17:26,977 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 857 transitions. Word has length 86 [2022-11-03 02:17:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:26,977 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 857 transitions. [2022-11-03 02:17:26,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-03 02:17:26,978 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 857 transitions. [2022-11-03 02:17:26,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 02:17:26,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:26,981 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:17:26,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:17:26,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:26,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:26,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1637104656, now seen corresponding path program 1 times [2022-11-03 02:17:26,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:26,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104859710] [2022-11-03 02:17:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:26,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-03 02:17:27,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:27,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104859710] [2022-11-03 02:17:27,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104859710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:17:27,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238372389] [2022-11-03 02:17:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:27,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:17:27,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:27,304 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:17:27,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:17:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:27,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:17:27,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 61 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:17:27,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 02:17:28,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238372389] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:28,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1196577777] [2022-11-03 02:17:28,093 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-11-03 02:17:28,094 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:17:28,094 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:17:28,095 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:17:28,095 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:17:35,118 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 309 for LOIs [2022-11-03 02:17:35,215 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-03 02:17:35,501 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2022-11-03 02:17:35,503 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-03 02:17:35,524 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 43 for LOIs [2022-11-03 02:17:35,532 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2022-11-03 02:17:35,535 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:17:48,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11573#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:17:48,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:17:48,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:17:48,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-11-03 02:17:48,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692021964] [2022-11-03 02:17:48,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:17:48,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:17:48,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:17:48,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:17:48,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=2672, Unknown=0, NotChecked=0, Total=2970 [2022-11-03 02:17:48,779 INFO L87 Difference]: Start difference. First operand 716 states and 857 transitions. Second operand has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 9 states have call successors, (22), 5 states have call predecessors, (22), 8 states have return successors, (23), 10 states have call predecessors, (23), 9 states have call successors, (23) [2022-11-03 02:17:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:50,786 INFO L93 Difference]: Finished difference Result 2320 states and 3023 transitions. [2022-11-03 02:17:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 02:17:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 9 states have call successors, (22), 5 states have call predecessors, (22), 8 states have return successors, (23), 10 states have call predecessors, (23), 9 states have call successors, (23) Word has length 89 [2022-11-03 02:17:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:50,810 INFO L225 Difference]: With dead ends: 2320 [2022-11-03 02:17:50,810 INFO L226 Difference]: Without dead ends: 1598 [2022-11-03 02:17:50,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2190 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=670, Invalid=5972, Unknown=0, NotChecked=0, Total=6642 [2022-11-03 02:17:50,816 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 496 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:50,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 573 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:17:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-11-03 02:17:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 917. [2022-11-03 02:17:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 629 states have (on average 1.2162162162162162) internal successors, (765), 686 states have internal predecessors, (765), 141 states have call successors, (141), 136 states have call predecessors, (141), 146 states have return successors, (166), 147 states have call predecessors, (166), 141 states have call successors, (166) [2022-11-03 02:17:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1072 transitions. [2022-11-03 02:17:50,936 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1072 transitions. Word has length 89 [2022-11-03 02:17:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:50,937 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1072 transitions. [2022-11-03 02:17:50,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 9 states have call successors, (22), 5 states have call predecessors, (22), 8 states have return successors, (23), 10 states have call predecessors, (23), 9 states have call successors, (23) [2022-11-03 02:17:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1072 transitions. [2022-11-03 02:17:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 02:17:50,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:50,940 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:17:50,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:51,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:17:51,167 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:51,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1997326461, now seen corresponding path program 1 times [2022-11-03 02:17:51,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:17:51,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797778422] [2022-11-03 02:17:51,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:51,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:17:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 44 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-03 02:17:52,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:17:52,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797778422] [2022-11-03 02:17:52,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797778422] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:17:52,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39538010] [2022-11-03 02:17:52,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:52,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:17:52,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:17:52,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:17:52,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:17:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:52,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 02:17:52,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:17:52,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:17:53,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39538010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:53,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [241158454] [2022-11-03 02:17:53,167 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-11-03 02:17:53,167 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:17:53,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:17:53,168 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:17:53,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:17:58,141 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-03 02:17:58,147 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2022-11-03 02:17:58,729 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 22 for LOIs [2022-11-03 02:17:58,731 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 45 for LOIs [2022-11-03 02:17:58,759 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 24 for LOIs [2022-11-03 02:17:58,761 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 34 for LOIs [2022-11-03 02:17:58,764 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:18:06,149 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17199#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~10#1| ~waterLevel~0) (<= |old(~pumpRunning~0)| 2147483647) (<= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483648)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 |#NULL.offset|) (<= |timeShift_getWaterLevel_~retValue_acc~10#1| 2147483647) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift_getWaterLevel_~retValue_acc~10#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:18:06,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:18:06,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:18:06,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 33 [2022-11-03 02:18:06,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002923531] [2022-11-03 02:18:06,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:18:06,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-03 02:18:06,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:06,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-03 02:18:06,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=4127, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 02:18:06,153 INFO L87 Difference]: Start difference. First operand 917 states and 1072 transitions. Second operand has 33 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 18 states have call successors, (31), 8 states have call predecessors, (31), 13 states have return successors, (29), 16 states have call predecessors, (29), 17 states have call successors, (29) [2022-11-03 02:18:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:09,489 INFO L93 Difference]: Finished difference Result 2074 states and 2479 transitions. [2022-11-03 02:18:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-03 02:18:09,490 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 18 states have call successors, (31), 8 states have call predecessors, (31), 13 states have return successors, (29), 16 states have call predecessors, (29), 17 states have call successors, (29) Word has length 94 [2022-11-03 02:18:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:09,491 INFO L225 Difference]: With dead ends: 2074 [2022-11-03 02:18:09,491 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:18:09,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 250 SyntacticMatches, 6 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4349 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1248, Invalid=10524, Unknown=0, NotChecked=0, Total=11772 [2022-11-03 02:18:09,498 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1435 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:09,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1205 Invalid, 3095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-03 02:18:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:18:09,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:18:09,499 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) [2022-11-03 02:18:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:18:09,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2022-11-03 02:18:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:09,500 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:18:09,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 18 states have call successors, (31), 8 states have call predecessors, (31), 13 states have return successors, (29), 16 states have call predecessors, (29), 17 states have call successors, (29) [2022-11-03 02:18:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:18:09,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:18:09,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:18:09,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:09,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:09,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:18:24,570 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 160 167) the Hoare annotation is: (let ((.cse2 (not (< ~waterLevel~0 3))) (.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (<= 1 ~switchedOnBeforeTS~0)) .cse2 .cse3) (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (<= 2 ~waterLevel~0)) .cse0 (not (<= ~waterLevel~0 2)) .cse1 .cse3))) [2022-11-03 02:18:24,570 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 160 167) no Hoare annotation was computed. [2022-11-03 02:18:24,570 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 93 99) no Hoare annotation was computed. [2022-11-03 02:18:24,571 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 93 99) the Hoare annotation is: true [2022-11-03 02:18:24,571 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 926 937) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse7 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse0 (not .cse7)) (.cse6 (not (= ~pumpRunning~0 0))) (.cse9 (not (< ~waterLevel~0 3))) (.cse2 (not (<= 2 ~waterLevel~0))) (.cse8 (not .cse1)) (.cse3 (not (= ~pumpRunning~0 1))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse3 (not (<= ~waterLevel~0 1)) .cse5 (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse6 .cse7 .cse8 .cse9) (or .cse0 .cse6 .cse1 .cse9) (or .cse7 .cse2 .cse8 .cse3 .cse4 .cse5)))) [2022-11-03 02:18:24,571 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 926 937) no Hoare annotation was computed. [2022-11-03 02:18:24,571 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 757 786) no Hoare annotation was computed. [2022-11-03 02:18:24,572 INFO L902 garLoopResultBuilder]: At program point L767-2(lines 767 781) the Hoare annotation is: true [2022-11-03 02:18:24,572 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 757 786) the Hoare annotation is: true [2022-11-03 02:18:24,572 INFO L902 garLoopResultBuilder]: At program point L763(line 763) the Hoare annotation is: true [2022-11-03 02:18:24,572 INFO L899 garLoopResultBuilder]: For program point L763-1(line 763) no Hoare annotation was computed. [2022-11-03 02:18:24,572 INFO L902 garLoopResultBuilder]: At program point L782(lines 757 786) the Hoare annotation is: true [2022-11-03 02:18:24,572 INFO L899 garLoopResultBuilder]: For program point L778(line 778) no Hoare annotation was computed. [2022-11-03 02:18:24,572 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 775) no Hoare annotation was computed. [2022-11-03 02:18:24,573 INFO L902 garLoopResultBuilder]: At program point L771-1(lines 771 775) the Hoare annotation is: true [2022-11-03 02:18:24,573 INFO L895 garLoopResultBuilder]: At program point L721(line 721) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 1))) (let ((.cse7 (and .cse9 .cse10)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse6 .cse2 .cse7 .cse5) (or .cse6 .cse2 .cse8 .cse7 (not (<= 2 |old(~waterLevel~0)|))) (or (not .cse1) .cse6 .cse2 (and .cse9 .cse3 .cse10) .cse4 .cse5) (or .cse0 (and (= ~pumpRunning~0 0) .cse9) .cse8)))) [2022-11-03 02:18:24,573 INFO L895 garLoopResultBuilder]: At program point L721-1(line 721) the Hoare annotation is: (let ((.cse4 (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret43#1|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 1))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (and .cse4 .cse5 (not .cse2) .cse6)) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse0 .cse2 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse5) .cse3)))) [2022-11-03 02:18:24,574 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 69 91) no Hoare annotation was computed. [2022-11-03 02:18:24,574 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 143) no Hoare annotation was computed. [2022-11-03 02:18:24,574 INFO L895 garLoopResultBuilder]: At program point L131(lines 131 148) the Hoare annotation is: (let ((.cse6 (< 0 |old(~waterLevel~0)|))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse8 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse6)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1))) (and (or .cse0 (not .cse1) .cse2) (or .cse3 (and (= ~waterLevel~0 1) .cse4 .cse5) .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or (= ~methaneLevelCritical~0 0) (and (or (and (not .cse6) .cse7) .cse8) .cse4 .cse5) .cse3 .cse1 .cse2) (or .cse0 (and (= ~pumpRunning~0 0) .cse7) .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse3 .cse1 (and (<= ~waterLevel~0 0) (or .cse8 .cse7) .cse4 .cse5) (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))) [2022-11-03 02:18:24,574 INFO L899 garLoopResultBuilder]: For program point L738(lines 738 748) no Hoare annotation was computed. [2022-11-03 02:18:24,574 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 751) no Hoare annotation was computed. [2022-11-03 02:18:24,575 INFO L895 garLoopResultBuilder]: At program point L734-1(lines 726 754) the Hoare annotation is: (let ((.cse10 (= 0 ~systemActive~0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse3 (< 0 |old(~waterLevel~0)|))) (let ((.cse5 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3)) (.cse6 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse12 (not .cse0)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (= ~pumpRunning~0 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (not .cse10)) (.cse11 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (and .cse1 .cse2 (or (and (not .cse3) .cse4) .cse5) .cse6 .cse7 .cse8) .cse9 .cse10 .cse11) (or (not (<= |old(~waterLevel~0)| 1)) .cse12 .cse9 .cse10 (and .cse2 (<= ~waterLevel~0 0) .cse6 (or .cse5 .cse4) .cse7 .cse13) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or (and .cse2 .cse6 (= ~waterLevel~0 1) .cse7 .cse13) .cse12 .cse9 .cse10 .cse11 (not (<= 2 |old(~waterLevel~0)|))) (or .cse14 (and .cse1 .cse2 .cse4) .cse8 .cse11) (or .cse14 (and (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1|) .cse2 .cse4 .cse13) .cse10 (and .cse1 .cse2 .cse4 .cse8) .cse11)))) [2022-11-03 02:18:24,575 INFO L899 garLoopResultBuilder]: For program point L739(lines 739 745) no Hoare annotation was computed. [2022-11-03 02:18:24,576 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse1 (<= 1 ~switchedOnBeforeTS~0)) (.cse2 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= 0 ~systemActive~0)) (.cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1 .cse2) .cse3 .cse4 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (= ~methaneLevelCritical~0 0) .cse3 .cse4 .cse5) (or (not (= |old(~pumpRunning~0)| 0)) .cse5) (or .cse3 .cse4 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 0)) .cse6) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse0 .cse1 .cse2) (not (= |old(~waterLevel~0)| 1)) .cse3 .cse4 .cse6))) [2022-11-03 02:18:24,576 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (not .cse5)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (= 0 ~systemActive~0)) (.cse0 (not (< |old(~waterLevel~0)| 3)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 .cse2 .cse3 .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse2 .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse0) (or (and (let ((.cse4 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse4) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse4))) (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0) (<= 1 ~switchedOnBeforeTS~0) (= ~pumpRunning~0 1)) .cse5 .cse2 .cse3 .cse0)))) [2022-11-03 02:18:24,576 INFO L895 garLoopResultBuilder]: At program point L736(line 736) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0))) (let ((.cse6 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse4 (< 0 |old(~waterLevel~0)|)) (.cse12 (not (<= |old(~waterLevel~0)| 2))) (.cse13 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse8 (<= 1 ~switchedOnBeforeTS~0)) (.cse15 (= ~pumpRunning~0 1)) (.cse14 (not .cse0)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (= 0 ~systemActive~0)) (.cse16 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (and .cse2 .cse3 (or (and (not .cse4) .cse5) (and .cse6 .cse4)) .cse7 .cse8) .cse9 .cse10) (or .cse11 .cse12 .cse13) (or (not (= |old(~waterLevel~0)| 1)) .cse14 .cse1 .cse9 (and .cse6 .cse4 .cse3 .cse7 .cse8 .cse15) .cse16) (or (and .cse3 .cse7 (= ~waterLevel~0 1) .cse8 .cse15) .cse14 .cse1 .cse9 .cse12 .cse13) (or (and .cse3 .cse5 .cse7 .cse8 .cse15) .cse14 .cse1 .cse9 (not (<= |old(~waterLevel~0)| 0)) .cse16) (or .cse11 (and .cse2 .cse3 .cse5) .cse10)))) [2022-11-03 02:18:24,576 INFO L899 garLoopResultBuilder]: For program point L736-1(line 736) no Hoare annotation was computed. [2022-11-03 02:18:24,577 INFO L895 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2))) [2022-11-03 02:18:24,577 INFO L895 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not .cse1) .cse2) (or (= ~methaneLevelCritical~0 0) .cse3 .cse1 .cse2) (or .cse3 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2))) [2022-11-03 02:18:24,577 INFO L895 garLoopResultBuilder]: At program point L146-1(lines 127 151) the Hoare annotation is: (let ((.cse11 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse13 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse12 (< 0 |old(~waterLevel~0)|)) (.cse10 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse8 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse9 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse6 (not .cse11)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not .cse1) .cse2) (or .cse0 (and .cse3 .cse4) (and .cse4 .cse5) .cse2) (or .cse6 .cse7 .cse1 (and .cse4 .cse8 .cse9 .cse5) (not (<= |old(~waterLevel~0)| 0)) .cse10) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse3) (or .cse11 .cse7 (and .cse3 (or (and (not .cse12) .cse4) (and .cse13 .cse12)) .cse8 .cse9) .cse1 .cse2) (or (not (= |old(~waterLevel~0)| 1)) .cse6 .cse7 (and .cse13 .cse12 .cse8 .cse9 .cse5) .cse1 .cse10) (or (and .cse8 (= ~waterLevel~0 1) .cse9 .cse5) .cse6 .cse7 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-03 02:18:24,578 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 92) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 1))) (let ((.cse7 (and .cse9 .cse10)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse6 .cse2 .cse7 .cse5) (or .cse6 .cse2 .cse8 .cse7 (not (<= 2 |old(~waterLevel~0)|))) (or (not .cse1) .cse6 .cse2 (and .cse9 .cse3 .cse10) .cse4 .cse5) (or .cse0 (and (= ~pumpRunning~0 0) .cse9) .cse8)))) [2022-11-03 02:18:24,578 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 80 86) the Hoare annotation is: (let ((.cse12 (= ~methaneLevelCritical~0 0)) (.cse11 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse11 .cse2)) (.cse14 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse13 (< 0 |old(~waterLevel~0)|)) (.cse10 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse8 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (.cse9 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse5 (not .cse12)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (= 0 ~systemActive~0)) (.cse15 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4) (or .cse5 .cse6 .cse7 (and .cse2 .cse8 .cse9 .cse3) (not (<= |old(~waterLevel~0)| 0)) .cse10) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse11) (or .cse12 .cse6 (and .cse11 (or (and (not .cse13) .cse2) (and .cse14 .cse13)) .cse8 .cse9) .cse7 .cse4) (or .cse0 .cse1 .cse15 (not .cse7)) (or (not (= |old(~waterLevel~0)| 1)) .cse5 .cse6 (and .cse14 .cse13 .cse8 .cse9 .cse3) .cse7 .cse10) (or (and .cse8 (= ~waterLevel~0 1) .cse9 .cse3) .cse5 .cse6 .cse7 .cse15 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-03 02:18:24,578 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 92) no Hoare annotation was computed. [2022-11-03 02:18:24,579 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 860) no Hoare annotation was computed. [2022-11-03 02:18:24,579 INFO L902 garLoopResultBuilder]: At program point L333(lines 270 337) the Hoare annotation is: true [2022-11-03 02:18:24,579 INFO L899 garLoopResultBuilder]: For program point L300(lines 300 306) no Hoare annotation was computed. [2022-11-03 02:18:24,579 INFO L899 garLoopResultBuilder]: For program point L300-1(lines 300 306) no Hoare annotation was computed. [2022-11-03 02:18:24,579 INFO L895 garLoopResultBuilder]: At program point L292(line 292) the Hoare annotation is: (let ((.cse2 (<= ~waterLevel~0 2)) (.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse3 .cse4))) [2022-11-03 02:18:24,580 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:18:24,580 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 253) no Hoare annotation was computed. [2022-11-03 02:18:24,580 INFO L895 garLoopResultBuilder]: At program point L247-1(lines 247 253) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (< ~waterLevel~0 3)) [2022-11-03 02:18:24,580 INFO L895 garLoopResultBuilder]: At program point L842(lines 842 849) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-03 02:18:24,580 INFO L895 garLoopResultBuilder]: At program point L330(lines 279 331) the Hoare annotation is: false [2022-11-03 02:18:24,580 INFO L902 garLoopResultBuilder]: At program point L842-2(lines 842 849) the Hoare annotation is: true [2022-11-03 02:18:24,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:18:24,581 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 324) no Hoare annotation was computed. [2022-11-03 02:18:24,581 INFO L895 garLoopResultBuilder]: At program point L318-2(lines 310 325) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (< ~waterLevel~0 3)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3 .cse4) (and (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1 (<= ~waterLevel~0 2) .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-03 02:18:24,581 INFO L899 garLoopResultBuilder]: For program point L281(lines 280 329) no Hoare annotation was computed. [2022-11-03 02:18:24,581 INFO L895 garLoopResultBuilder]: At program point L310(lines 310 325) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (< ~waterLevel~0 3))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2) .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-11-03 02:18:24,581 INFO L895 garLoopResultBuilder]: At program point L302(line 302) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2) .cse2 .cse3) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse4))) [2022-11-03 02:18:24,582 INFO L895 garLoopResultBuilder]: At program point L327(lines 280 329) the Hoare annotation is: (let ((.cse2 (<= ~waterLevel~0 2)) (.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (< ~waterLevel~0 3) .cse3 .cse4))) [2022-11-03 02:18:24,582 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 296) no Hoare annotation was computed. [2022-11-03 02:18:24,582 INFO L899 garLoopResultBuilder]: For program point L290-1(lines 290 296) no Hoare annotation was computed. [2022-11-03 02:18:24,582 INFO L895 garLoopResultBuilder]: At program point L249(line 249) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2) .cse3 .cse4))) [2022-11-03 02:18:24,582 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 101 125) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse4 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse2 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-03 02:18:24,583 INFO L895 garLoopResultBuilder]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse4 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-03 02:18:24,583 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 101 125) no Hoare annotation was computed. [2022-11-03 02:18:24,583 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 101 125) no Hoare annotation was computed. [2022-11-03 02:18:24,583 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (not (<= ~waterLevel~0 1)) .cse2) (or .cse4 (= ~pumpRunning~0 0) .cse2 (not (< ~waterLevel~0 3))))) [2022-11-03 02:18:24,583 INFO L895 garLoopResultBuilder]: At program point L109(lines 109 117) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0) (not (<= ~waterLevel~0 1)) .cse2) (or .cse4 (= ~pumpRunning~0 0) .cse2 (not (< ~waterLevel~0 3))))) [2022-11-03 02:18:24,584 INFO L895 garLoopResultBuilder]: At program point L105(lines 105 122) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse4 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse2 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-03 02:18:24,584 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 914 925) no Hoare annotation was computed. [2022-11-03 02:18:24,584 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 914 925) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse1 (not (= ~pumpRunning~0 1))) (.cse3 (= 0 ~systemActive~0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= |old(~waterLevel~0)| 0)) .cse4) (or (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4) (or .cse1 .cse2 .cse3 .cse5 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= ~pumpRunning~0 0)) .cse2 .cse5))) [2022-11-03 02:18:24,584 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 179 187) no Hoare annotation was computed. [2022-11-03 02:18:24,584 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 179 187) the Hoare annotation is: true [2022-11-03 02:18:24,588 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:24,590 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:18:24,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:18:24 BoogieIcfgContainer [2022-11-03 02:18:24,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:18:24,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:18:24,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:18:24,622 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:18:24,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:16:57" (3/4) ... [2022-11-03 02:18:24,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:18:24,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 02:18:24,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:18:24,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:18:24,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:18:24,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:18:24,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:18:24,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:18:24,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 02:18:24,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2022-11-03 02:18:24,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 02:18:24,641 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 02:18:24,641 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:18:24,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:18:24,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:18:24,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:18:24,668 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || (((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && ((((((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || (((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) [2022-11-03 02:18:24,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && (((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((\old(waterLevel) == waterLevel && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0)) && ((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((((!(\old(waterLevel) == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((((tmp == methaneLevelCritical && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 02:18:24,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((methaneLevelCritical == 0 || (((((pumpRunning == 0 && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && (((((!(\old(waterLevel) <= 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((((tmp == waterLevel && waterLevel <= 0) && tmp == methaneLevelCritical) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((((((tmp == waterLevel && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || (((1 < tmp && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || 0 == systemActive) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(\old(waterLevel) < 3)) [2022-11-03 02:18:24,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && ((((methaneLevelCritical == 0 || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-03 02:18:24,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) [2022-11-03 02:18:24,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((\old(waterLevel) == waterLevel && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0)) && ((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((((tmp == methaneLevelCritical && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 02:18:24,670 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(waterLevel <= 0) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3))) && (((((!(waterLevel == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-03 02:18:24,672 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(waterLevel <= 0) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) && ((((!(waterLevel == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(waterLevel <= 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3)) [2022-11-03 02:18:24,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:18:24,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:18:24,698 INFO L158 Benchmark]: Toolchain (without parser) took 88859.10ms. Allocated memory was 119.5MB in the beginning and 650.1MB in the end (delta: 530.6MB). Free memory was 80.6MB in the beginning and 442.0MB in the end (delta: -361.3MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,698 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:18:24,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.81ms. Allocated memory is still 119.5MB. Free memory was 80.5MB in the beginning and 85.7MB in the end (delta: -5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.42ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 83.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,699 INFO L158 Benchmark]: Boogie Preprocessor took 58.11ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 81.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,700 INFO L158 Benchmark]: RCFGBuilder took 741.24ms. Allocated memory is still 119.5MB. Free memory was 81.6MB in the beginning and 52.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,700 INFO L158 Benchmark]: TraceAbstraction took 87424.37ms. Allocated memory was 119.5MB in the beginning and 650.1MB in the end (delta: 530.6MB). Free memory was 51.6MB in the beginning and 448.3MB in the end (delta: -396.7MB). Peak memory consumption was 363.7MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,700 INFO L158 Benchmark]: Witness Printer took 75.72ms. Allocated memory is still 650.1MB. Free memory was 448.3MB in the beginning and 442.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:18:24,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.81ms. Allocated memory is still 119.5MB. Free memory was 80.5MB in the beginning and 85.7MB in the end (delta: -5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.42ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 83.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.11ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 81.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 741.24ms. Allocated memory is still 119.5MB. Free memory was 81.6MB in the beginning and 52.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 87424.37ms. Allocated memory was 119.5MB in the beginning and 650.1MB in the end (delta: 530.6MB). Free memory was 51.6MB in the beginning and 448.3MB in the end (delta: -396.7MB). Peak memory consumption was 363.7MB. Max. memory is 16.1GB. * Witness Printer took 75.72ms. Allocated memory is still 650.1MB. Free memory was 448.3MB in the beginning and 442.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 860]: 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, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 87.3s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2856 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2825 mSDsluCounter, 4107 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3765 mSDsCounter, 1522 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4638 IncrementalHoareTripleChecker+Invalid, 6160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1522 mSolverCounterUnsat, 1052 mSDtfsCounter, 4638 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1041 GetRequests, 741 SyntacticMatches, 12 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7975 ImplicationChecksByTransitivity, 37.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=917occurred in iteration=11, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 862 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 2328 PreInvPairs, 2717 NumberOfFragments, 2560 HoareAnnotationTreeSize, 2328 FomulaSimplifications, 18789 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 107709 FormulaSimplificationTreeSizeReductionInter, 12.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 910 NumberOfCodeBlocks, 910 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1139 ConstructedInterpolants, 0 QuantifiedInterpolants, 3406 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1978 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 562/657 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: 842]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: ((((((!(waterLevel <= 0) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3))) && (((((!(waterLevel == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) || (((((2 <= waterLevel && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) && !(0 == systemActive)) && pumpRunning == 1)) || ((((((methaneLevelCritical == 0 && tmp == 1) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && !(0 == systemActive)) && pumpRunning == 1) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 1) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && ((((methaneLevelCritical == 0 || ((((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 842]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 310]: Loop Invariant Derived loop invariant: ((((((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && !(0 == systemActive)) && pumpRunning == 1) || (((((2 <= waterLevel && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) && !(0 == systemActive)) && pumpRunning == 1)) || (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel < 3) - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && (((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((\old(waterLevel) == waterLevel && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0)) && ((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((((!(\old(waterLevel) == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((((tmp == methaneLevelCritical && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 860]: Loop Invariant Derived loop invariant: (((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 1) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((((!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((\old(waterLevel) == waterLevel && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0)) && ((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || (((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS)) || 0 == systemActive) || !(\old(waterLevel) < 3))) && (((((!(\old(waterLevel) == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((((tmp == methaneLevelCritical && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((!(waterLevel <= 0) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS)) && ((((!(waterLevel == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(1 <= switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(waterLevel <= 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) || !(waterLevel < 3)) - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 721]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 || !(\old(pumpRunning) == 1)) || (((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && ((((((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 1)) || (((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && pumpRunning == 1)) || 0 == systemActive) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && waterLevel < 3 - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((((((methaneLevelCritical == 0 || (((((pumpRunning == 0 && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == methaneLevelCritical) && 1 <= switchedOnBeforeTS) && !(0 == systemActive))) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) && (((((!(\old(waterLevel) <= 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || (((((tmp == waterLevel && waterLevel <= 0) && tmp == methaneLevelCritical) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((((((tmp == waterLevel && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || 0 == systemActive) || !(\old(waterLevel) < 3)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || (((1 < tmp && tmp == waterLevel) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || 0 == systemActive) || (((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-03 02:18:24,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_420e379f-2970-44b5-9dbd-70e496984959/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE