./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.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_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/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_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/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_bbb114aa-51db-4059-b977-cf91dbbb36b7/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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- 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 02:11:57,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:11:57,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:11:57,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:11:57,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:11:57,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:11:57,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:11:57,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:11:57,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:11:57,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:11:57,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:11:57,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:11:57,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:11:57,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:11:57,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:11:57,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:11:57,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:11:57,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:11:57,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:11:57,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:11:57,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:11:57,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:11:57,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:11:57,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:11:57,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:11:57,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:11:57,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:11:57,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:11:57,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:11:57,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:11:57,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:11:57,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:11:57,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:11:57,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:11:57,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:11:57,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:11:57,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:11:57,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:11:57,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:11:57,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:11:57,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:11:57,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:11:57,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:11:57,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:11:57,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:11:57,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:11:57,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:11:57,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:11:57,531 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:11:57,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:11:57,532 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:11:57,532 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:11:57,533 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:11:57,533 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:11:57,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:11:57,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:11:57,534 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:11:57,535 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:11:57,535 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:11:57,535 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:11:57,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:11:57,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:11:57,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:11:57,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:11:57,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:11:57,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:11:57,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:11:57,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:11:57,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:11:57,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:11:57,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:11:57,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:11:57,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:11:57,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:11:57,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:57,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:11:57,542 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:11:57,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:11:57,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:11:57,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:11:57,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:11:57,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:11:57,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:11:57,543 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_bbb114aa-51db-4059-b977-cf91dbbb36b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2022-11-03 02:11:57,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:11:57,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:11:57,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:11:57,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:11:57,909 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:11:57,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2022-11-03 02:11:58,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/data/5c59cc819/46a166a831994804ada136dc686e21d2/FLAG8e5057ff3 [2022-11-03 02:11:58,535 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:11:58,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2022-11-03 02:11:58,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/data/5c59cc819/46a166a831994804ada136dc686e21d2/FLAG8e5057ff3 [2022-11-03 02:11:58,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/data/5c59cc819/46a166a831994804ada136dc686e21d2 [2022-11-03 02:11:58,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:11:58,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:11:58,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:58,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:11:58,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:11:58,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:58" (1/1) ... [2022-11-03 02:11:58,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3380e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:58, skipping insertion in model container [2022-11-03 02:11:58,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:58" (1/1) ... [2022-11-03 02:11:58,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:11:58,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:11:59,260 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_bbb114aa-51db-4059-b977-cf91dbbb36b7/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2022-11-03 02:11:59,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:59,343 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:11:59,378 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_bbb114aa-51db-4059-b977-cf91dbbb36b7/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c[6823,6836] [2022-11-03 02:11:59,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:59,500 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:11:59,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59 WrapperNode [2022-11-03 02:11:59,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:59,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:59,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:11:59,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:11:59,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,587 INFO L138 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 284 [2022-11-03 02:11:59,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:59,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:11:59,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:11:59,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:11:59,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:11:59,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:11:59,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:11:59,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:11:59,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (1/1) ... [2022-11-03 02:11:59,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:59,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:59,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:11:59,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:11:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:11:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:11:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:11:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:11:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:11:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 02:11:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 02:11:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:11:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:11:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:11:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:11:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:11:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:11:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 02:11:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 02:11:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 02:11:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 02:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:11:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:11:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:11:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:11:59,818 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:11:59,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:12:00,336 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:12:00,454 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:12:00,455 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:12:00,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:12:00 BoogieIcfgContainer [2022-11-03 02:12:00,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:12:00,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:12:00,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:12:00,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:12:00,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:11:58" (1/3) ... [2022-11-03 02:12:00,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb002b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:12:00, skipping insertion in model container [2022-11-03 02:12:00,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:59" (2/3) ... [2022-11-03 02:12:00,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb002b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:12:00, skipping insertion in model container [2022-11-03 02:12:00,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:12:00" (3/3) ... [2022-11-03 02:12:00,475 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2022-11-03 02:12:00,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:12:00,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:12:00,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:12:00,562 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;@7205d914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:12:00,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:12:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-03 02:12:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:12:00,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:00,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:00,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:00,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:00,605 INFO L85 PathProgramCache]: Analyzing trace with hash 399646742, now seen corresponding path program 1 times [2022-11-03 02:12:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:00,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694162294] [2022-11-03 02:12:00,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:00,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:00,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:00,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694162294] [2022-11-03 02:12:00,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694162294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:00,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:00,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:12:00,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944828128] [2022-11-03 02:12:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:00,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:12:00,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:00,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:12:00,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:12:00,888 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:00,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:00,985 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-11-03 02:12:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:12:00,989 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 02:12:00,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:01,003 INFO L225 Difference]: With dead ends: 158 [2022-11-03 02:12:01,003 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 02:12:01,009 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 02:12:01,013 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:01,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:12:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 02:12:01,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-03 02:12:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 56 states have internal predecessors, (62), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 02:12:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-11-03 02:12:01,085 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 17 [2022-11-03 02:12:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:01,087 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-11-03 02:12:01,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-11-03 02:12:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:12:01,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:01,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:01,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:12:01,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:01,096 INFO L85 PathProgramCache]: Analyzing trace with hash -426351573, now seen corresponding path program 1 times [2022-11-03 02:12:01,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:01,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255379173] [2022-11-03 02:12:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:01,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:01,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:01,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255379173] [2022-11-03 02:12:01,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255379173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:01,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:01,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:12:01,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747402380] [2022-11-03 02:12:01,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:01,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:12:01,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:12:01,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:01,342 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:01,402 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2022-11-03 02:12:01,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:12:01,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 02:12:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:01,404 INFO L225 Difference]: With dead ends: 122 [2022-11-03 02:12:01,405 INFO L226 Difference]: Without dead ends: 67 [2022-11-03 02:12:01,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:01,407 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:01,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 128 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:12:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-03 02:12:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-03 02:12:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 51 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 02:12:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 88 transitions. [2022-11-03 02:12:01,418 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 88 transitions. Word has length 18 [2022-11-03 02:12:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:01,419 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 88 transitions. [2022-11-03 02:12:01,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,419 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2022-11-03 02:12:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:12:01,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:01,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:01,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:12:01,421 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1669276041, now seen corresponding path program 1 times [2022-11-03 02:12:01,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:01,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370065309] [2022-11-03 02:12:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:01,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:01,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370065309] [2022-11-03 02:12:01,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370065309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:01,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:01,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:12:01,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915726365] [2022-11-03 02:12:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:01,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:12:01,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:12:01,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:12:01,575 INFO L87 Difference]: Start difference. First operand 67 states and 88 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:01,735 INFO L93 Difference]: Finished difference Result 166 states and 218 transitions. [2022-11-03 02:12:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:12:01,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 02:12:01,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:01,737 INFO L225 Difference]: With dead ends: 166 [2022-11-03 02:12:01,737 INFO L226 Difference]: Without dead ends: 101 [2022-11-03 02:12:01,738 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 02:12:01,740 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 111 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:01,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 177 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:12:01,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-03 02:12:01,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2022-11-03 02:12:01,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 75 states have internal predecessors, (85), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-03 02:12:01,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 128 transitions. [2022-11-03 02:12:01,760 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 128 transitions. Word has length 21 [2022-11-03 02:12:01,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:01,760 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 128 transitions. [2022-11-03 02:12:01,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:01,761 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 128 transitions. [2022-11-03 02:12:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:12:01,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:01,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:01,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:12:01,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash 873917752, now seen corresponding path program 1 times [2022-11-03 02:12:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:01,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637700186] [2022-11-03 02:12:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:01,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:01,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:01,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637700186] [2022-11-03 02:12:01,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637700186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:01,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:01,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:12:01,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834271006] [2022-11-03 02:12:01,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:01,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:12:01,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:01,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:12:01,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:12:01,917 INFO L87 Difference]: Start difference. First operand 98 states and 128 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:02,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:02,135 INFO L93 Difference]: Finished difference Result 286 states and 379 transitions. [2022-11-03 02:12:02,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:12:02,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-03 02:12:02,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:02,145 INFO L225 Difference]: With dead ends: 286 [2022-11-03 02:12:02,145 INFO L226 Difference]: Without dead ends: 190 [2022-11-03 02:12:02,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:12:02,155 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 63 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:02,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 378 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:12:02,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-03 02:12:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 182. [2022-11-03 02:12:02,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 115 states have (on average 1.3478260869565217) internal successors, (155), 138 states have internal predecessors, (155), 40 states have call successors, (40), 26 states have call predecessors, (40), 26 states have return successors, (42), 28 states have call predecessors, (42), 40 states have call successors, (42) [2022-11-03 02:12:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 237 transitions. [2022-11-03 02:12:02,193 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 237 transitions. Word has length 24 [2022-11-03 02:12:02,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:02,193 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 237 transitions. [2022-11-03 02:12:02,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:12:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 237 transitions. [2022-11-03 02:12:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:12:02,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:02,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:12:02,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:02,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1954594010, now seen corresponding path program 1 times [2022-11-03 02:12:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:02,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582305867] [2022-11-03 02:12:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:12:02,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:02,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582305867] [2022-11-03 02:12:02,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582305867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:02,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:02,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:12:02,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061985943] [2022-11-03 02:12:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:02,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:12:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:12:02,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:02,304 INFO L87 Difference]: Start difference. First operand 182 states and 237 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:12:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:02,411 INFO L93 Difference]: Finished difference Result 278 states and 369 transitions. [2022-11-03 02:12:02,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:12:02,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-03 02:12:02,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:02,419 INFO L225 Difference]: With dead ends: 278 [2022-11-03 02:12:02,419 INFO L226 Difference]: Without dead ends: 276 [2022-11-03 02:12:02,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:12:02,421 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 63 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:02,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 156 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:12:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-03 02:12:02,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-11-03 02:12:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 209 states have internal predecessors, (235), 61 states have call successors, (61), 40 states have call predecessors, (61), 40 states have return successors, (70), 43 states have call predecessors, (70), 61 states have call successors, (70) [2022-11-03 02:12:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 366 transitions. [2022-11-03 02:12:02,473 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 366 transitions. Word has length 27 [2022-11-03 02:12:02,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:02,474 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 366 transitions. [2022-11-03 02:12:02,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:12:02,475 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 366 transitions. [2022-11-03 02:12:02,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 02:12:02,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:02,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:02,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:12:02,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:02,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:02,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1568616714, now seen corresponding path program 1 times [2022-11-03 02:12:02,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135670811] [2022-11-03 02:12:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:02,712 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:12:02,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:02,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135670811] [2022-11-03 02:12:02,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135670811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:02,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:02,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:12:02,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133244972] [2022-11-03 02:12:02,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:02,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:12:02,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:02,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:12:02,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:12:02,715 INFO L87 Difference]: Start difference. First operand 276 states and 366 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:12:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:03,109 INFO L93 Difference]: Finished difference Result 735 states and 991 transitions. [2022-11-03 02:12:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:12:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-11-03 02:12:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:03,113 INFO L225 Difference]: With dead ends: 735 [2022-11-03 02:12:03,113 INFO L226 Difference]: Without dead ends: 461 [2022-11-03 02:12:03,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:12:03,115 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 165 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:03,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 195 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:12:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-03 02:12:03,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 439. [2022-11-03 02:12:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 287 states have (on average 1.2334494773519165) internal successors, (354), 313 states have internal predecessors, (354), 75 states have call successors, (75), 63 states have call predecessors, (75), 76 states have return successors, (112), 79 states have call predecessors, (112), 75 states have call successors, (112) [2022-11-03 02:12:03,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 541 transitions. [2022-11-03 02:12:03,197 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 541 transitions. Word has length 48 [2022-11-03 02:12:03,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:03,198 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 541 transitions. [2022-11-03 02:12:03,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:12:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 541 transitions. [2022-11-03 02:12:03,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-03 02:12:03,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:03,206 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-03 02:12:03,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:12:03,207 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:03,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:03,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1775408788, now seen corresponding path program 1 times [2022-11-03 02:12:03,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:03,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946049142] [2022-11-03 02:12:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:03,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:12:03,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:03,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946049142] [2022-11-03 02:12:03,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946049142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:12:03,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:12:03,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:12:03,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487387398] [2022-11-03 02:12:03,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:12:03,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:12:03,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:03,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:12:03,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:12:03,344 INFO L87 Difference]: Start difference. First operand 439 states and 541 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-03 02:12:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:03,542 INFO L93 Difference]: Finished difference Result 880 states and 1084 transitions. [2022-11-03 02:12:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:12:03,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 82 [2022-11-03 02:12:03,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:03,546 INFO L225 Difference]: With dead ends: 880 [2022-11-03 02:12:03,546 INFO L226 Difference]: Without dead ends: 443 [2022-11-03 02:12:03,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:12:03,548 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 104 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:03,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 146 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:12:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-11-03 02:12:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 430. [2022-11-03 02:12:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 281 states have (on average 1.2241992882562278) internal successors, (344), 306 states have internal predecessors, (344), 73 states have call successors, (73), 61 states have call predecessors, (73), 75 states have return successors, (102), 78 states have call predecessors, (102), 73 states have call successors, (102) [2022-11-03 02:12:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 519 transitions. [2022-11-03 02:12:03,604 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 519 transitions. Word has length 82 [2022-11-03 02:12:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:03,604 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 519 transitions. [2022-11-03 02:12:03,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-03 02:12:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 519 transitions. [2022-11-03 02:12:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 02:12:03,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:03,607 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:12:03,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:12:03,608 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1883512897, now seen corresponding path program 1 times [2022-11-03 02:12:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:03,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849222537] [2022-11-03 02:12:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:03,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:12:04,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:04,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849222537] [2022-11-03 02:12:04,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849222537] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:12:04,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930117797] [2022-11-03 02:12:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:04,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:12:04,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:04,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:12:04,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:12:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:04,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:12:04,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:12:04,937 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:12:04,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:12:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:12:05,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930117797] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:12:05,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1797514952] [2022-11-03 02:12:05,987 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-03 02:12:05,988 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:12:05,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:12:06,000 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:12:06,001 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:12:24,424 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-03 02:12:25,002 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 28 for LOIs [2022-11-03 02:12:25,070 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 28 for LOIs [2022-11-03 02:12:25,283 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 53 for LOIs [2022-11-03 02:12:25,397 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 27 for LOIs [2022-11-03 02:12:25,413 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 51 for LOIs [2022-11-03 02:12:25,425 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 52 for LOIs [2022-11-03 02:12:25,434 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:12:41,698 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6936#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~3#1|) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (<= |old(~pumpRunning~0)| 1) (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 1) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (<= 0 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= |old(~methAndRunningLastTime~0)| 1) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:12:41,699 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:12:41,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:12:41,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 11] total 30 [2022-11-03 02:12:41,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350909086] [2022-11-03 02:12:41,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:12:41,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 02:12:41,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:12:41,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 02:12:41,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=4115, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 02:12:41,703 INFO L87 Difference]: Start difference. First operand 430 states and 519 transitions. Second operand has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) [2022-11-03 02:12:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:47,101 INFO L93 Difference]: Finished difference Result 1734 states and 2434 transitions. [2022-11-03 02:12:47,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-03 02:12:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) Word has length 79 [2022-11-03 02:12:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:47,111 INFO L225 Difference]: With dead ends: 1734 [2022-11-03 02:12:47,111 INFO L226 Difference]: Without dead ends: 1252 [2022-11-03 02:12:47,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 200 SyntacticMatches, 4 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6325 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=1561, Invalid=15469, Unknown=0, NotChecked=0, Total=17030 [2022-11-03 02:12:47,121 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1741 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 2937 mSolverCounterSat, 1262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 4199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1262 IncrementalHoareTripleChecker+Valid, 2937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:47,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 854 Invalid, 4199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1262 Valid, 2937 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 02:12:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-11-03 02:12:47,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 842. [2022-11-03 02:12:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 553 states have (on average 1.2007233273056057) internal successors, (664), 598 states have internal predecessors, (664), 141 states have call successors, (141), 119 states have call predecessors, (141), 147 states have return successors, (197), 152 states have call predecessors, (197), 141 states have call successors, (197) [2022-11-03 02:12:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1002 transitions. [2022-11-03 02:12:47,276 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1002 transitions. Word has length 79 [2022-11-03 02:12:47,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:47,276 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1002 transitions. [2022-11-03 02:12:47,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 21 states have (on average 4.857142857142857) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (24), 6 states have call predecessors, (24), 16 states have return successors, (28), 15 states have call predecessors, (28), 9 states have call successors, (28) [2022-11-03 02:12:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1002 transitions. [2022-11-03 02:12:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 02:12:47,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:47,281 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:47,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:12:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 02:12:47,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash -953146253, now seen corresponding path program 1 times [2022-11-03 02:12:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:47,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9250436] [2022-11-03 02:12:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:47,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 02:12:48,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:12:48,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9250436] [2022-11-03 02:12:48,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9250436] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:12:48,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526706238] [2022-11-03 02:12:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:48,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:12:48,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:12:48,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:12:48,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:12:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:12:48,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:12:48,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:12:48,440 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 40 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:12:48,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:12:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:12:49,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526706238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:12:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [791449320] [2022-11-03 02:12:49,187 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-03 02:12:49,187 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:12:49,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:12:49,187 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:12:49,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:13:05,342 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 35 for LOIs [2022-11-03 02:13:05,616 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 30 for LOIs [2022-11-03 02:13:05,679 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 30 for LOIs [2022-11-03 02:13:05,802 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-11-03 02:13:05,829 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 46 for LOIs [2022-11-03 02:13:05,837 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 49 for LOIs [2022-11-03 02:13:05,847 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:13:17,841 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11462#(and (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~3#1|) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 0)) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 1) (<= 2 |old(~waterLevel~0)|) (<= 0 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~3#1|) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:13:17,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:13:17,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:13:17,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 28 [2022-11-03 02:13:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905219789] [2022-11-03 02:13:17,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:13:17,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 02:13:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:17,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 02:13:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=3166, Unknown=0, NotChecked=0, Total=3540 [2022-11-03 02:13:17,845 INFO L87 Difference]: Start difference. First operand 842 states and 1002 transitions. Second operand has 28 states, 22 states have (on average 5.0) internal successors, (110), 21 states have internal predecessors, (110), 10 states have call successors, (24), 6 states have call predecessors, (24), 13 states have return successors, (26), 15 states have call predecessors, (26), 10 states have call successors, (26) [2022-11-03 02:13:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:27,989 INFO L93 Difference]: Finished difference Result 3206 states and 4105 transitions. [2022-11-03 02:13:27,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-11-03 02:13:27,990 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 5.0) internal successors, (110), 21 states have internal predecessors, (110), 10 states have call successors, (24), 6 states have call predecessors, (24), 13 states have return successors, (26), 15 states have call predecessors, (26), 10 states have call successors, (26) Word has length 86 [2022-11-03 02:13:27,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:28,004 INFO L225 Difference]: With dead ends: 3206 [2022-11-03 02:13:28,011 INFO L226 Difference]: Without dead ends: 2411 [2022-11-03 02:13:28,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 240 SyntacticMatches, 8 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16030 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=3306, Invalid=36494, Unknown=0, NotChecked=0, Total=39800 [2022-11-03 02:13:28,031 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1827 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 1383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 5071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1383 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:28,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 1200 Invalid, 5071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1383 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:13:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2022-11-03 02:13:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 1860. [2022-11-03 02:13:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1249 states have (on average 1.1945556445156125) internal successors, (1492), 1335 states have internal predecessors, (1492), 305 states have call successors, (305), 267 states have call predecessors, (305), 305 states have return successors, (408), 309 states have call predecessors, (408), 305 states have call successors, (408) [2022-11-03 02:13:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2205 transitions. [2022-11-03 02:13:28,266 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2205 transitions. Word has length 86 [2022-11-03 02:13:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:28,267 INFO L495 AbstractCegarLoop]: Abstraction has 1860 states and 2205 transitions. [2022-11-03 02:13:28,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 5.0) internal successors, (110), 21 states have internal predecessors, (110), 10 states have call successors, (24), 6 states have call predecessors, (24), 13 states have return successors, (26), 15 states have call predecessors, (26), 10 states have call successors, (26) [2022-11-03 02:13:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2205 transitions. [2022-11-03 02:13:28,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-03 02:13:28,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:28,274 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-11-03 02:13:28,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:13:28,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:13:28,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:13:28,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash -960410585, now seen corresponding path program 1 times [2022-11-03 02:13:28,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:28,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841018818] [2022-11-03 02:13:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:28,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:28,914 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:13:28,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:28,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841018818] [2022-11-03 02:13:28,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841018818] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:13:28,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480991403] [2022-11-03 02:13:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:28,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:13:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:28,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:13:28,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:13:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:29,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 02:13:29,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:13:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 02:13:29,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:13:29,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480991403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:29,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:13:29,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 18 [2022-11-03 02:13:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526260624] [2022-11-03 02:13:29,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:29,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:13:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:13:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:13:29,301 INFO L87 Difference]: Start difference. First operand 1860 states and 2205 transitions. Second operand has 11 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (20), 6 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 02:13:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:29,971 INFO L93 Difference]: Finished difference Result 3282 states and 3922 transitions. [2022-11-03 02:13:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 02:13:29,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (20), 6 states have call predecessors, (20), 3 states have call successors, (20) Word has length 136 [2022-11-03 02:13:29,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:29,975 INFO L225 Difference]: With dead ends: 3282 [2022-11-03 02:13:29,975 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:13:29,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:13:29,984 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 53 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:29,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 791 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:13:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:13:29,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:13:29,987 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 02:13:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:13:29,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2022-11-03 02:13:29,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:29,988 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:13:29,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (20), 6 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-03 02:13:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:13:29,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:13:29,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:13:30,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:13:30,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:13:30,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:13:46,041 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 238 245) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2022-11-03 02:13:46,041 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 238 245) no Hoare annotation was computed. [2022-11-03 02:13:46,041 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 128 134) no Hoare annotation was computed. [2022-11-03 02:13:46,041 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 128 134) the Hoare annotation is: true [2022-11-03 02:13:46,042 INFO L895 garLoopResultBuilder]: At program point L176(line 176) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,042 INFO L895 garLoopResultBuilder]: At program point L172(line 172) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,042 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 178) no Hoare annotation was computed. [2022-11-03 02:13:46,042 INFO L895 garLoopResultBuilder]: At program point L166(lines 166 183) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,043 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) .cse1))) [2022-11-03 02:13:46,043 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 162 186) no Hoare annotation was computed. [2022-11-03 02:13:46,043 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 162 186) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,043 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 162 186) no Hoare annotation was computed. [2022-11-03 02:13:46,044 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 511 522) the Hoare annotation is: (let ((.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not (= ~pumpRunning~0 0)) .cse1 .cse3) (or (not .cse0) (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2022-11-03 02:13:46,044 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 511 522) no Hoare annotation was computed. [2022-11-03 02:13:46,044 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2022-11-03 02:13:46,044 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 589 618) the Hoare annotation is: true [2022-11-03 02:13:46,045 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2022-11-03 02:13:46,045 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2022-11-03 02:13:46,045 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2022-11-03 02:13:46,045 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2022-11-03 02:13:46,045 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2022-11-03 02:13:46,045 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2022-11-03 02:13:46,046 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2022-11-03 02:13:46,046 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 523 531) the Hoare annotation is: true [2022-11-03 02:13:46,046 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 523 531) no Hoare annotation was computed. [2022-11-03 02:13:46,046 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 209) no Hoare annotation was computed. [2022-11-03 02:13:46,046 INFO L895 garLoopResultBuilder]: At program point L440(line 440) the Hoare annotation is: (and (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-03 02:13:46,047 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 115 121) no Hoare annotation was computed. [2022-11-03 02:13:46,047 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 476) no Hoare annotation was computed. [2022-11-03 02:13:46,047 INFO L895 garLoopResultBuilder]: At program point L462(lines 462 479) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0)) (.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (= ~pumpRunning~0 0)) (.cse11 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (not (= |old(~waterLevel~0)| 1)))) (let ((.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse12 (and .cse11 (<= 2 ~waterLevel~0) (or .cse0 .cse14) (= ~pumpRunning~0 1))) (.cse13 (and .cse9 .cse11 .cse10 (or .cse14 (<= ~waterLevel~0 1)))) (.cse5 (not .cse7)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (not .cse3)) (or .cse0 .cse4 .cse5 .cse6) (or .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse7) (or .cse0 .cse1 .cse4 .cse8) (or .cse0 .cse1 .cse4 .cse6) (or .cse3 (and .cse9 .cse10) (and .cse10 (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse7) (or (and .cse0 .cse11 .cse10) (and .cse9 .cse0 .cse11) .cse12 .cse13 .cse7) (or .cse1 .cse2 .cse12 .cse13 .cse7) (or .cse0 .cse5 (and .cse11 .cse10 (or .cse4 .cse8)))))) [2022-11-03 02:13:46,048 INFO L895 garLoopResultBuilder]: At program point L462-1(lines 454 482) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse12 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse11 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse4 (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| ~methaneLevelCritical~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse13 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not .cse5))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 (and .cse2 (not (= |timeShift_processEnvironment_~tmp~2#1| 0)) .cse4)) (let ((.cse8 (not (= |old(~waterLevel~0)| 1)))) (or (and .cse6 .cse7 .cse2 .cse3) (and .cse1 .cse6 .cse7 .cse3) (and .cse1 .cse7 .cse2 .cse3 (or .cse8 (<= ~waterLevel~0 1))) (and .cse7 .cse3 (<= 2 ~waterLevel~0) (or .cse6 .cse8) (= ~pumpRunning~0 1)) .cse5)) (or .cse6 .cse9 .cse10 .cse11) (or .cse6 .cse12 .cse9 .cse13) (or .cse6 .cse12 .cse9 .cse11) (or .cse6 .cse0 .cse4 .cse10) (or (and .cse1 .cse7 .cse2 .cse3 (or .cse9 .cse13)) .cse6 .cse10)))) [2022-11-03 02:13:46,048 INFO L895 garLoopResultBuilder]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (= |old(~pumpRunning~0)| 0)) (or (= ~methaneLevelCritical~0 0) .cse0) (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0))) [2022-11-03 02:13:46,049 INFO L895 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (not (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse0))) [2022-11-03 02:13:46,049 INFO L895 garLoopResultBuilder]: At program point L194(line 194) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) .cse0))) [2022-11-03 02:13:46,049 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-11-03 02:13:46,049 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 473) no Hoare annotation was computed. [2022-11-03 02:13:46,050 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (or (not (= |old(~waterLevel~0)| 1)) (<= ~waterLevel~0 1))) .cse0) (or .cse1 .cse2 .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (and (= ~methAndRunningLastTime~0 0) (or .cse2 (= ~waterLevel~0 1))) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse0)))) [2022-11-03 02:13:46,050 INFO L895 garLoopResultBuilder]: At program point L207-1(lines 188 212) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse2 .cse0 .cse3 (= ~waterLevel~0 1)) (or .cse2 .cse0 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (= ~methaneLevelCritical~0 0) (and .cse4 .cse5) (and .cse5 (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse1) (let ((.cse6 (not (= |old(~waterLevel~0)| 1)))) (or (and .cse5 (or .cse2 .cse6 (<= ~waterLevel~0 1))) (and .cse4 .cse2) (and (<= 2 ~waterLevel~0) (or .cse2 .cse6) (= ~pumpRunning~0 1)) .cse1)) (or .cse2 (not .cse1)))) [2022-11-03 02:13:46,050 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 107 126) no Hoare annotation was computed. [2022-11-03 02:13:46,051 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 104 127) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= 0 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not .cse7)) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse6 (or .cse3 (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse3 .cse4 .cse5) (or .cse0 .cse4 (and (= ~pumpRunning~0 0) .cse6)) (or .cse1 .cse3 .cse7 .cse5) (or .cse1 .cse2 .cse7) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6) .cse7)))) [2022-11-03 02:13:46,051 INFO L895 garLoopResultBuilder]: At program point L460(line 460) the Hoare annotation is: (let ((.cse9 (= 0 ~systemActive~0))) (let ((.cse5 (not .cse9)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse8 (= ~waterLevel~0 1)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 (not .cse3)) (or .cse0 .cse4 .cse5 .cse6) (or .cse0 .cse5 (and .cse7 (or .cse4 .cse8))) (or .cse1 .cse2 .cse9) (or .cse0 .cse1 .cse4 .cse8) (or .cse0 .cse1 .cse4 .cse6) (or .cse3 (and .cse10 .cse7) (and .cse7 (not (= |timeShift_processEnvironment_~tmp~2#1| 0))) .cse9) (let ((.cse11 (not (= |old(~waterLevel~0)| 1)))) (or (and .cse7 (or .cse0 .cse11 (<= ~waterLevel~0 1))) (and .cse10 .cse0) (and (<= 2 ~waterLevel~0) (or .cse0 .cse11) (= ~pumpRunning~0 1)) .cse9))))) [2022-11-03 02:13:46,052 INFO L899 garLoopResultBuilder]: For program point L460-1(line 460) no Hoare annotation was computed. [2022-11-03 02:13:46,052 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 104 127) no Hoare annotation was computed. [2022-11-03 02:13:46,052 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 440) no Hoare annotation was computed. [2022-11-03 02:13:46,052 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 204) no Hoare annotation was computed. [2022-11-03 02:13:46,052 INFO L895 garLoopResultBuilder]: At program point L671(lines 671 678) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-03 02:13:46,053 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 421) no Hoare annotation was computed. [2022-11-03 02:13:46,053 INFO L895 garLoopResultBuilder]: At program point L415-2(lines 407 422) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 .cse1 (not (= 0 ~systemActive~0))))) [2022-11-03 02:13:46,053 INFO L902 garLoopResultBuilder]: At program point L671-2(lines 671 678) the Hoare annotation is: true [2022-11-03 02:13:46,053 INFO L899 garLoopResultBuilder]: For program point L378(lines 377 426) no Hoare annotation was computed. [2022-11-03 02:13:46,054 INFO L895 garLoopResultBuilder]: At program point L407(lines 407 422) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-03 02:13:46,054 INFO L895 garLoopResultBuilder]: At program point L399(line 399) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-11-03 02:13:46,054 INFO L895 garLoopResultBuilder]: At program point L424(lines 377 426) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-11-03 02:13:46,054 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 393) no Hoare annotation was computed. [2022-11-03 02:13:46,055 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2022-11-03 02:13:46,055 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:13:46,055 INFO L895 garLoopResultBuilder]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse1 (not (= |isMethaneAlarm_#t~ret9| 0))) (or .cse0 .cse1 (not (= |isMethaneAlarm_#res| 0))) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (or .cse0 .cse1 (not (= |isMethaneLevelCritical_#res| 0))) (not (= 0 ~systemActive~0)))) [2022-11-03 02:13:46,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:13:46,055 INFO L902 garLoopResultBuilder]: At program point L430(lines 367 434) the Hoare annotation is: true [2022-11-03 02:13:46,056 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 403) no Hoare annotation was computed. [2022-11-03 02:13:46,056 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 397 403) no Hoare annotation was computed. [2022-11-03 02:13:46,056 INFO L895 garLoopResultBuilder]: At program point L389(line 389) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2))) [2022-11-03 02:13:46,056 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 350) no Hoare annotation was computed. [2022-11-03 02:13:46,057 INFO L895 garLoopResultBuilder]: At program point L344-1(lines 344 350) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (not (= 0 ~systemActive~0))) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2))) [2022-11-03 02:13:46,057 INFO L895 garLoopResultBuilder]: At program point L427(lines 376 428) the Hoare annotation is: false [2022-11-03 02:13:46,057 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 136 160) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,057 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,058 INFO L899 garLoopResultBuilder]: For program point L155-1(lines 136 160) no Hoare annotation was computed. [2022-11-03 02:13:46,058 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse0) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) .cse1))) [2022-11-03 02:13:46,058 INFO L895 garLoopResultBuilder]: At program point L226-1(line 226) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret8#1| ~methaneLevelCritical~0)) (not .cse0) .cse1))) [2022-11-03 02:13:46,058 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 136 160) no Hoare annotation was computed. [2022-11-03 02:13:46,059 INFO L895 garLoopResultBuilder]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (not .cse0) .cse1 (and (= ~pumpRunning~0 0) (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)))) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-03 02:13:46,059 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 152) no Hoare annotation was computed. [2022-11-03 02:13:46,059 INFO L895 garLoopResultBuilder]: At program point L140(lines 140 157) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse0) (or .cse1 .cse0 (not (= ~methAndRunningLastTime~0 0))))) [2022-11-03 02:13:46,059 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 499 510) no Hoare annotation was computed. [2022-11-03 02:13:46,060 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 499 510) the Hoare annotation is: (let ((.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (= ~waterLevel~0 1)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) (not (= ~pumpRunning~0 1)) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse3 .cse4) (or .cse1 .cse2 .cse6 .cse3) (or .cse0 .cse1 .cse2 .cse6) (or .cse5 .cse1 .cse6 .cse3))) [2022-11-03 02:13:46,060 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 246 256) the Hoare annotation is: true [2022-11-03 02:13:46,060 INFO L902 garLoopResultBuilder]: At program point L251(line 251) the Hoare annotation is: true [2022-11-03 02:13:46,060 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 246 256) no Hoare annotation was computed. [2022-11-03 02:13:46,060 INFO L899 garLoopResultBuilder]: For program point L251-1(line 251) no Hoare annotation was computed. [2022-11-03 02:13:46,064 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:13:46,067 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:13:46,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:13:46 BoogieIcfgContainer [2022-11-03 02:13:46,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:13:46,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:13:46,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:13:46,100 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:13:46,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:12:00" (3/4) ... [2022-11-03 02:13:46,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:13:46,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 02:13:46,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:13:46,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:13:46,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:13:46,112 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 02:13:46,112 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:13:46,112 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:13:46,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:13:46,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:13:46,113 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 02:13:46,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2022-11-03 02:13:46,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 02:13:46,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 02:13:46,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:13:46,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:13:46,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:13:46,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:13:46,155 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(\old(methAndRunningLastTime) == 0) || \old(waterLevel) == waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || 0 == systemActive) [2022-11-03 02:13:46,156 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && ((((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel <= 1)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || ((2 <= waterLevel && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || 0 == systemActive)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 02:13:46,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-03 02:13:46,157 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && ((((((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical)) || (((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || (((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || ((tmp == methaneLevelCritical && pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) [2022-11-03 02:13:46,158 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-03 02:13:46,158 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((methaneLevelCritical == 0 || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp___0 == 0)) || 0 == systemActive) || ((pumpRunning == 0 && !(tmp == 0)) && tmp___0 == 0)) && (((((((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) || (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || ((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || ((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || tmp___0 == 0) || !(0 == systemActive))) && ((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(0 == systemActive)) [2022-11-03 02:13:46,159 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(pumpRunning) == 0 || 0 == systemActive) || !(methAndRunningLastTime == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((pumpRunning == 0 && 2 <= waterLevel) && aux-isMethaneAlarm()-aux == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || 0 == systemActive) [2022-11-03 02:13:46,160 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) && 0 == systemActive [2022-11-03 02:13:46,194 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:13:46,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:13:46,195 INFO L158 Benchmark]: Toolchain (without parser) took 107344.45ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 83.0MB in the beginning and 291.0MB in the end (delta: -208.0MB). Peak memory consumption was 319.1MB. Max. memory is 16.1GB. [2022-11-03 02:13:46,195 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:13:46,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.95ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 84.7MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:13:46,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.51ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 81.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:13:46,197 INFO L158 Benchmark]: Boogie Preprocessor took 31.04ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:13:46,197 INFO L158 Benchmark]: RCFGBuilder took 837.79ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 48.8MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-03 02:13:46,197 INFO L158 Benchmark]: TraceAbstraction took 105638.06ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 47.6MB in the beginning and 297.3MB in the end (delta: -249.7MB). Peak memory consumption was 361.7MB. Max. memory is 16.1GB. [2022-11-03 02:13:46,198 INFO L158 Benchmark]: Witness Printer took 94.94ms. Allocated memory is still 645.9MB. Free memory was 297.3MB in the beginning and 291.0MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:13:46,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.95ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 84.7MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.51ms. Allocated memory is still 117.4MB. Free memory was 84.7MB in the beginning and 81.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.04ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 837.79ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 48.8MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 105638.06ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 47.6MB in the beginning and 297.3MB in the end (delta: -249.7MB). Peak memory consumption was 361.7MB. Max. memory is 16.1GB. * Witness Printer took 94.94ms. Allocated memory is still 645.9MB. Free memory was 297.3MB in the beginning and 291.0MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 440]: 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 11 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105.5s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 17.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4170 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4141 mSDsluCounter, 4111 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3748 mSDsCounter, 2774 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7594 IncrementalHoareTripleChecker+Invalid, 10368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2774 mSolverCounterUnsat, 1056 mSDtfsCounter, 7594 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 977 GetRequests, 592 SyntacticMatches, 12 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22420 ImplicationChecksByTransitivity, 38.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1860occurred in iteration=9, InterpolantAutomatonStates: 274, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 1007 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 2987 PreInvPairs, 3579 NumberOfFragments, 1753 HoareAnnotationTreeSize, 2987 FomulaSimplifications, 13830 FormulaSimplificationTreeSizeReduction, 4.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 107917 FormulaSimplificationTreeSizeReductionInter, 11.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 989 ConstructedInterpolants, 0 QuantifiedInterpolants, 2453 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1618 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 500/550 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: (((\old(pumpRunning) == 0 || 0 == systemActive) || !(methAndRunningLastTime == 0)) && ((\old(pumpRunning) == 0 || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((pumpRunning == 0 && 2 <= waterLevel) && aux-isMethaneAlarm()-aux == methaneLevelCritical) || !(\old(pumpRunning) == 0)) || 0 == systemActive) - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(\old(methAndRunningLastTime) == 0) || \old(waterLevel) == waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || 0 == systemActive) - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) || (((!(methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive))) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 462]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(\old(pumpRunning) == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && ((((((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical)) || (((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || (((tmp == methaneLevelCritical && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || ((tmp == methaneLevelCritical && pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: ((((((((methaneLevelCritical == 0 || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp___0 == 0)) || 0 == systemActive) || ((pumpRunning == 0 && !(tmp == 0)) && tmp___0 == 0)) && (((((((!(\old(pumpRunning) == 0) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) || (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || ((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) && (!(\old(waterLevel) == 1) || waterLevel <= 1))) || ((((tmp == methaneLevelCritical && methAndRunningLastTime == 0) && 2 <= waterLevel) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || tmp___0 == 0) || !(0 == systemActive))) && ((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && pumpRunning == 0) && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(\old(pumpRunning) == 0)) || !(0 == systemActive)) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((methaneLevelCritical == 0 || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (pumpRunning == 0 && !(tmp == 0))) || 0 == systemActive)) && ((((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel <= 1)) || (pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0))) || ((2 <= waterLevel && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && pumpRunning == 1)) || 0 == systemActive)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 407]: Loop Invariant Derived loop invariant: ((tmp == 1 && splverifierCounter == 0) && !(0 == systemActive)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 440]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) && 0 == systemActive - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((pumpRunning == \old(pumpRunning) || 0 == systemActive) || !(methAndRunningLastTime == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-03 02:13:46,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbb114aa-51db-4059-b977-cf91dbbb36b7/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