./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/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_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/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_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/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 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 --- 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 02:18:47,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:18:47,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:18:47,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:18:47,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:18:47,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:18:47,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:18:47,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:18:47,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:18:47,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:18:47,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:18:47,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:18:47,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:18:47,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:18:47,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:18:47,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:18:47,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:18:47,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:18:47,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:18:47,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:18:47,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:18:47,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:18:47,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:18:47,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:18:47,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:18:47,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:18:47,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:18:47,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:18:47,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:18:47,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:18:47,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:18:47,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:18:47,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:18:47,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:18:47,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:18:47,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:18:47,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:18:47,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:18:47,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:18:47,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:18:47,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:18:47,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:18:47,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:18:47,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:18:47,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:18:47,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:18:47,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:18:47,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:18:47,556 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:18:47,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:18:47,557 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:18:47,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:18:47,557 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:18:47,557 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:18:47,557 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:18:47,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:18:47,558 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:18:47,558 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:18:47,559 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:18:47,559 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:18:47,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:18:47,560 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:18:47,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:18:47,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:18:47,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:18:47,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:18:47,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:18:47,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:18:47,562 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:18:47,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:18:47,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:18:47,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:18:47,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:18:47,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:18:47,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:18:47,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:18:47,564 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:18:47,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:18:47,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:18:47,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:18:47,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:18:47,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:18:47,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:18:47,565 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_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2022-11-03 02:18:47,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:18:47,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:18:47,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:18:47,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:18:47,907 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:18:47,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2022-11-03 02:18:47,990 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/data/ea60dadf8/d015ce990e80432a9953a2f7c4ba20e0/FLAG34a1b17d8 [2022-11-03 02:18:48,500 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:18:48,501 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2022-11-03 02:18:48,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/data/ea60dadf8/d015ce990e80432a9953a2f7c4ba20e0/FLAG34a1b17d8 [2022-11-03 02:18:48,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/data/ea60dadf8/d015ce990e80432a9953a2f7c4ba20e0 [2022-11-03 02:18:48,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:18:48,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:18:48,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:18:48,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:18:48,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:18:48,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:18:48" (1/1) ... [2022-11-03 02:18:48,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152b4808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:48, skipping insertion in model container [2022-11-03 02:18:48,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:18:48" (1/1) ... [2022-11-03 02:18:48,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:18:48,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:18:49,179 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_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2022-11-03 02:18:49,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:18:49,366 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:18:49,404 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_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2022-11-03 02:18:49,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:18:49,524 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:18:49,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49 WrapperNode [2022-11-03 02:18:49,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:18:49,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:18:49,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:18:49,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:18:49,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,617 INFO L138 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 297 [2022-11-03 02:18:49,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:18:49,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:18:49,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:18:49,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:18:49,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:18:49,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:18:49,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:18:49,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:18:49,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (1/1) ... [2022-11-03 02:18:49,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:18:49,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:18:49,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:18:49,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:18:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:18:49,791 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:18:49,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:18:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:18:49,792 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:18:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:18:49,792 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:18:49,792 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:18:49,793 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:18:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:18:49,793 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:18:49,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:18:49,793 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:18:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 02:18:49,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 02:18:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 02:18:49,794 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 02:18:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:18:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:18:49,795 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:18:49,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:18:49,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:18:49,921 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:18:49,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:18:50,383 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:18:50,532 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:18:50,533 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:18:50,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:18:50 BoogieIcfgContainer [2022-11-03 02:18:50,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:18:50,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:18:50,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:18:50,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:18:50,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:18:48" (1/3) ... [2022-11-03 02:18:50,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111d60fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:18:50, skipping insertion in model container [2022-11-03 02:18:50,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:18:49" (2/3) ... [2022-11-03 02:18:50,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111d60fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:18:50, skipping insertion in model container [2022-11-03 02:18:50,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:18:50" (3/3) ... [2022-11-03 02:18:50,557 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2022-11-03 02:18:50,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:18:50,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:18:50,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:18:50,651 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;@75419764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:18:50,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:18:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 56 states have internal predecessors, (65), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-03 02:18:50,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:18:50,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:50,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:50,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash 758216112, now seen corresponding path program 1 times [2022-11-03 02:18:50,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:50,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055630779] [2022-11-03 02:18:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:51,082 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 02:18:51,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:51,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055630779] [2022-11-03 02:18:51,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055630779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:51,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:51,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:18:51,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179474139] [2022-11-03 02:18:51,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:51,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:18:51,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:18:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:18:51,143 INFO L87 Difference]: Start difference. First operand has 73 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 56 states have internal predecessors, (65), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:51,289 INFO L93 Difference]: Finished difference Result 144 states and 199 transitions. [2022-11-03 02:18:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:18:51,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:18:51,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:51,307 INFO L225 Difference]: With dead ends: 144 [2022-11-03 02:18:51,308 INFO L226 Difference]: Without dead ends: 68 [2022-11-03 02:18:51,313 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 02:18:51,317 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:51,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:18:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-03 02:18:51,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-03 02:18:51,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 52 states have internal predecessors, (57), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 02:18:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 90 transitions. [2022-11-03 02:18:51,404 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 90 transitions. Word has length 12 [2022-11-03 02:18:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:51,404 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 90 transitions. [2022-11-03 02:18:51,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 90 transitions. [2022-11-03 02:18:51,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:18:51,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:51,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:51,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:18:51,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:51,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1790501731, now seen corresponding path program 1 times [2022-11-03 02:18:51,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:51,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812927031] [2022-11-03 02:18:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:51,600 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 02:18:51,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:51,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812927031] [2022-11-03 02:18:51,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812927031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:51,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:51,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:51,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595899354] [2022-11-03 02:18:51,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:51,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:51,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:51,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:51,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:51,606 INFO L87 Difference]: Start difference. First operand 68 states and 90 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:51,666 INFO L93 Difference]: Finished difference Result 108 states and 142 transitions. [2022-11-03 02:18:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:51,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:18:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:51,668 INFO L225 Difference]: With dead ends: 108 [2022-11-03 02:18:51,669 INFO L226 Difference]: Without dead ends: 60 [2022-11-03 02:18:51,669 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 02:18:51,671 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 14 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 110 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 02:18:51,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 110 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:18:51,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-03 02:18:51,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-03 02:18:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 47 states have internal predecessors, (51), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 02:18:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2022-11-03 02:18:51,691 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 79 transitions. Word has length 13 [2022-11-03 02:18:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:51,693 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 79 transitions. [2022-11-03 02:18:51,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2022-11-03 02:18:51,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:18:51,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:51,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:51,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:18:51,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:51,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:51,697 INFO L85 PathProgramCache]: Analyzing trace with hash -760101963, now seen corresponding path program 1 times [2022-11-03 02:18:51,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:51,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015910446] [2022-11-03 02:18:51,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:51,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:51,919 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 02:18:51,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:51,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015910446] [2022-11-03 02:18:51,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015910446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:51,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:51,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:18:51,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297526758] [2022-11-03 02:18:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:51,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:18:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:18:51,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:18:51,924 INFO L87 Difference]: Start difference. First operand 60 states and 79 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:52,097 INFO L93 Difference]: Finished difference Result 147 states and 194 transitions. [2022-11-03 02:18:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:18:52,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:18:52,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:52,101 INFO L225 Difference]: With dead ends: 147 [2022-11-03 02:18:52,102 INFO L226 Difference]: Without dead ends: 89 [2022-11-03 02:18:52,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:18:52,104 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 102 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:52,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 141 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:18:52,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-03 02:18:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-11-03 02:18:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 68 states have internal predecessors, (76), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-03 02:18:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 113 transitions. [2022-11-03 02:18:52,136 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 113 transitions. Word has length 16 [2022-11-03 02:18:52,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:52,136 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 113 transitions. [2022-11-03 02:18:52,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:52,137 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 113 transitions. [2022-11-03 02:18:52,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:18:52,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:52,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:52,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:18:52,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:52,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:52,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1260589856, now seen corresponding path program 1 times [2022-11-03 02:18:52,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:52,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892928985] [2022-11-03 02:18:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:52,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:52,269 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 02:18:52,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:52,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892928985] [2022-11-03 02:18:52,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892928985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:52,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:52,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:52,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393019283] [2022-11-03 02:18:52,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:52,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:18:52,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:52,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:18:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:18:52,273 INFO L87 Difference]: Start difference. First operand 86 states and 113 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:52,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:52,382 INFO L93 Difference]: Finished difference Result 210 states and 287 transitions. [2022-11-03 02:18:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:18:52,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 02:18:52,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:52,393 INFO L225 Difference]: With dead ends: 210 [2022-11-03 02:18:52,394 INFO L226 Difference]: Without dead ends: 126 [2022-11-03 02:18:52,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:18:52,403 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:52,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 183 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:18:52,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-03 02:18:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 119. [2022-11-03 02:18:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 80 states have (on average 1.3) internal successors, (104), 91 states have internal predecessors, (104), 20 states have call successors, (20), 18 states have call predecessors, (20), 18 states have return successors, (28), 18 states have call predecessors, (28), 20 states have call successors, (28) [2022-11-03 02:18:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 152 transitions. [2022-11-03 02:18:52,443 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 152 transitions. Word has length 19 [2022-11-03 02:18:52,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:52,443 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 152 transitions. [2022-11-03 02:18:52,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:18:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 152 transitions. [2022-11-03 02:18:52,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:18:52,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:52,445 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, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:52,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:18:52,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash 291838580, now seen corresponding path program 1 times [2022-11-03 02:18:52,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:52,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408562652] [2022-11-03 02:18:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:52,764 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 02:18:52,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:52,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408562652] [2022-11-03 02:18:52,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408562652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:52,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:52,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:18:52,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674179218] [2022-11-03 02:18:52,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:52,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:18:52,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:18:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:18:52,775 INFO L87 Difference]: Start difference. First operand 119 states and 152 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 02:18:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:52,978 INFO L93 Difference]: Finished difference Result 351 states and 455 transitions. [2022-11-03 02:18:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:18:52,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-11-03 02:18:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:52,984 INFO L225 Difference]: With dead ends: 351 [2022-11-03 02:18:52,984 INFO L226 Difference]: Without dead ends: 234 [2022-11-03 02:18:52,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:18:52,990 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 101 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:52,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 217 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:18:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-03 02:18:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 204. [2022-11-03 02:18:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 140 states have (on average 1.2785714285714285) internal successors, (179), 156 states have internal predecessors, (179), 31 states have call successors, (31), 29 states have call predecessors, (31), 32 states have return successors, (44), 31 states have call predecessors, (44), 31 states have call successors, (44) [2022-11-03 02:18:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 254 transitions. [2022-11-03 02:18:53,037 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 254 transitions. Word has length 33 [2022-11-03 02:18:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:53,038 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 254 transitions. [2022-11-03 02:18:53,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 02:18:53,038 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 254 transitions. [2022-11-03 02:18:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 02:18:53,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:53,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:53,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:18:53,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:53,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:53,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1444504193, now seen corresponding path program 1 times [2022-11-03 02:18:53,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:53,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301164142] [2022-11-03 02:18:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:53,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:53,429 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 02:18:53,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:53,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301164142] [2022-11-03 02:18:53,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301164142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:53,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:53,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:18:53,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994310575] [2022-11-03 02:18:53,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:53,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:18:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:53,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:18:53,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:18:53,432 INFO L87 Difference]: Start difference. First operand 204 states and 254 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (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 02:18:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:54,085 INFO L93 Difference]: Finished difference Result 456 states and 590 transitions. [2022-11-03 02:18:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:18:54,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (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 36 [2022-11-03 02:18:54,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:54,088 INFO L225 Difference]: With dead ends: 456 [2022-11-03 02:18:54,089 INFO L226 Difference]: Without dead ends: 339 [2022-11-03 02:18:54,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:18:54,091 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 243 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:54,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 320 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:18:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-03 02:18:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 317. [2022-11-03 02:18:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 217 states have (on average 1.271889400921659) internal successors, (276), 243 states have internal predecessors, (276), 49 states have call successors, (49), 43 states have call predecessors, (49), 50 states have return successors, (70), 50 states have call predecessors, (70), 49 states have call successors, (70) [2022-11-03 02:18:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 395 transitions. [2022-11-03 02:18:54,140 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 395 transitions. Word has length 36 [2022-11-03 02:18:54,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:54,141 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 395 transitions. [2022-11-03 02:18:54,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (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 02:18:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 395 transitions. [2022-11-03 02:18:54,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:18:54,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:54,144 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-11-03 02:18:54,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:18:54,145 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:54,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:54,145 INFO L85 PathProgramCache]: Analyzing trace with hash 46220055, now seen corresponding path program 1 times [2022-11-03 02:18:54,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:54,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160198945] [2022-11-03 02:18:54,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:54,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 02:18:54,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:54,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160198945] [2022-11-03 02:18:54,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160198945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:54,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:18:54,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:18:54,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041945615] [2022-11-03 02:18:54,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:54,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:54,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:18:54,205 INFO L87 Difference]: Start difference. First operand 317 states and 395 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:18:54,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:54,304 INFO L93 Difference]: Finished difference Result 638 states and 794 transitions. [2022-11-03 02:18:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2022-11-03 02:18:54,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:54,307 INFO L225 Difference]: With dead ends: 638 [2022-11-03 02:18:54,307 INFO L226 Difference]: Without dead ends: 323 [2022-11-03 02:18:54,308 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 02:18:54,309 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 25 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:54,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 140 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:18:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-03 02:18:54,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 317. [2022-11-03 02:18:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 217 states have (on average 1.2580645161290323) internal successors, (273), 243 states have internal predecessors, (273), 49 states have call successors, (49), 43 states have call predecessors, (49), 50 states have return successors, (64), 50 states have call predecessors, (64), 49 states have call successors, (64) [2022-11-03 02:18:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 386 transitions. [2022-11-03 02:18:54,351 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 386 transitions. Word has length 67 [2022-11-03 02:18:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:54,351 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 386 transitions. [2022-11-03 02:18:54,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:18:54,352 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 386 transitions. [2022-11-03 02:18:54,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 02:18:54,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:54,354 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:18:54,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:18:54,354 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:54,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:54,355 INFO L85 PathProgramCache]: Analyzing trace with hash 68852689, now seen corresponding path program 1 times [2022-11-03 02:18:54,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:54,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945104079] [2022-11-03 02:18:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:54,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:18:54,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:54,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945104079] [2022-11-03 02:18:54,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945104079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:18:54,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730664674] [2022-11-03 02:18:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:54,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:54,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:18:54,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:18:54,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:18:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:54,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:18:54,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:54,991 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:18:54,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:18:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:18:55,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730664674] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:18:55,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:18:55,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 9 [2022-11-03 02:18:55,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320130524] [2022-11-03 02:18:55,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:55,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:18:55,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:18:55,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:18:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:18:55,164 INFO L87 Difference]: Start difference. First operand 317 states and 386 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 02:18:55,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:55,347 INFO L93 Difference]: Finished difference Result 497 states and 618 transitions. [2022-11-03 02:18:55,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:18:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2022-11-03 02:18:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:55,350 INFO L225 Difference]: With dead ends: 497 [2022-11-03 02:18:55,350 INFO L226 Difference]: Without dead ends: 368 [2022-11-03 02:18:55,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:18:55,352 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 113 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:55,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 173 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:18:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-03 02:18:55,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 360. [2022-11-03 02:18:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 249 states have (on average 1.2530120481927711) internal successors, (312), 276 states have internal predecessors, (312), 52 states have call successors, (52), 46 states have call predecessors, (52), 58 states have return successors, (70), 58 states have call predecessors, (70), 52 states have call successors, (70) [2022-11-03 02:18:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 434 transitions. [2022-11-03 02:18:55,413 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 434 transitions. Word has length 72 [2022-11-03 02:18:55,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:55,414 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 434 transitions. [2022-11-03 02:18:55,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-03 02:18:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 434 transitions. [2022-11-03 02:18:55,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:18:55,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:55,419 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-11-03 02:18:55,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:55,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 02:18:55,644 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:55,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1437657817, now seen corresponding path program 1 times [2022-11-03 02:18:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:18:55,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809201696] [2022-11-03 02:18:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:55,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:18:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:18:56,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:18:56,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809201696] [2022-11-03 02:18:56,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809201696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:18:56,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294962550] [2022-11-03 02:18:56,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:56,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:18:56,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:18:56,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:18:56,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:18:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:56,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 02:18:56,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:18:56,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:18:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 02:18:57,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294962550] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:18:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168530349] [2022-11-03 02:18:57,452 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-03 02:18:57,453 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:18:57,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:18:57,462 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:18:57,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:19:01,201 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 48 for LOIs [2022-11-03 02:19:01,213 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2022-11-03 02:19:01,394 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 24 for LOIs [2022-11-03 02:19:01,469 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 24 for LOIs [2022-11-03 02:19:01,628 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 26 for LOIs [2022-11-03 02:19:01,631 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:19:08,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [168530349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:08,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:19:08,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [13, 11, 10] total 55 [2022-11-03 02:19:08,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737952008] [2022-11-03 02:19:08,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:08,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 02:19:08,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:08,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 02:19:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=2547, Unknown=0, NotChecked=0, Total=2970 [2022-11-03 02:19:08,350 INFO L87 Difference]: Start difference. First operand 360 states and 434 transitions. Second operand has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 02:19:25,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:25,252 INFO L93 Difference]: Finished difference Result 939 states and 1178 transitions. [2022-11-03 02:19:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 02:19:25,253 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 67 [2022-11-03 02:19:25,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:25,264 INFO L225 Difference]: With dead ends: 939 [2022-11-03 02:19:25,264 INFO L226 Difference]: Without dead ends: 635 [2022-11-03 02:19:25,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 156 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2485 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=1202, Invalid=6108, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 02:19:25,268 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 337 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:25,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 675 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:19:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-11-03 02:19:25,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 561. [2022-11-03 02:19:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 394 states have (on average 1.248730964467005) internal successors, (492), 427 states have internal predecessors, (492), 80 states have call successors, (80), 70 states have call predecessors, (80), 86 states have return successors, (111), 88 states have call predecessors, (111), 80 states have call successors, (111) [2022-11-03 02:19:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 683 transitions. [2022-11-03 02:19:25,380 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 683 transitions. Word has length 67 [2022-11-03 02:19:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:25,381 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 683 transitions. [2022-11-03 02:19:25,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 02:19:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 683 transitions. [2022-11-03 02:19:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:19:25,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:25,384 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-11-03 02:19:25,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:25,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:19:25,600 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash 42476523, now seen corresponding path program 1 times [2022-11-03 02:19:25,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:25,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407160548] [2022-11-03 02:19:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:25,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:19:26,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:26,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407160548] [2022-11-03 02:19:26,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407160548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:19:26,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403815065] [2022-11-03 02:19:26,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:26,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:19:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:19:26,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:19:26,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:19:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:26,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-03 02:19:26,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:19:26,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:19:27,556 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:19:27,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403815065] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:19:27,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [475563456] [2022-11-03 02:19:27,559 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-03 02:19:27,559 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:19:27,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:19:27,560 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:19:27,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:19:37,072 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2022-11-03 02:19:37,184 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 44 for LOIs [2022-11-03 02:19:37,265 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 44 for LOIs [2022-11-03 02:19:37,463 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 28 for LOIs [2022-11-03 02:19:37,466 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 318 for LOIs [2022-11-03 02:19:37,550 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:19:56,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [475563456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:56,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:19:56,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [14, 13, 11] total 51 [2022-11-03 02:19:56,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635347341] [2022-11-03 02:19:56,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:56,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 02:19:56,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:56,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 02:19:56,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=2262, Unknown=0, NotChecked=0, Total=2550 [2022-11-03 02:19:56,181 INFO L87 Difference]: Start difference. First operand 561 states and 683 transitions. Second operand has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 02:20:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:34,965 INFO L93 Difference]: Finished difference Result 1270 states and 1657 transitions. [2022-11-03 02:20:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-03 02:20:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 67 [2022-11-03 02:20:34,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:34,973 INFO L225 Difference]: With dead ends: 1270 [2022-11-03 02:20:34,973 INFO L226 Difference]: Without dead ends: 997 [2022-11-03 02:20:34,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 164 SyntacticMatches, 8 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2005 ImplicationChecksByTransitivity, 52.5s TimeCoverageRelationStatistics Valid=686, Invalid=5014, Unknown=0, NotChecked=0, Total=5700 [2022-11-03 02:20:34,977 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 267 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:34,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 524 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-03 02:20:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2022-11-03 02:20:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 790. [2022-11-03 02:20:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 552 states have (on average 1.2391304347826086) internal successors, (684), 596 states have internal predecessors, (684), 113 states have call successors, (113), 102 states have call predecessors, (113), 124 states have return successors, (160), 126 states have call predecessors, (160), 113 states have call successors, (160) [2022-11-03 02:20:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 957 transitions. [2022-11-03 02:20:35,274 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 957 transitions. Word has length 67 [2022-11-03 02:20:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:35,275 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 957 transitions. [2022-11-03 02:20:35,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 02:20:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 957 transitions. [2022-11-03 02:20:35,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 02:20:35,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:35,278 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, 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 02:20:35,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:35,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:20:35,494 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:35,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1581910990, now seen corresponding path program 1 times [2022-11-03 02:20:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:35,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471198764] [2022-11-03 02:20:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:20:36,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:36,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471198764] [2022-11-03 02:20:36,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471198764] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:20:36,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199003169] [2022-11-03 02:20:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:36,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:36,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:36,246 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:36,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:20:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:36,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 02:20:36,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 02:20:36,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:20:37,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199003169] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:20:37,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [396227648] [2022-11-03 02:20:37,217 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-03 02:20:37,217 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:20:37,218 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:20:37,218 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:20:37,218 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:20:41,088 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 305 for LOIs [2022-11-03 02:20:41,180 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 42 for LOIs [2022-11-03 02:20:41,342 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 48 for LOIs [2022-11-03 02:20:41,657 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 59 for LOIs [2022-11-03 02:20:42,052 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 50 for LOIs [2022-11-03 02:20:42,060 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 33 for LOIs [2022-11-03 02:20:42,062 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:20:55,886 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13729#(and (<= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~2#1|) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 0) (<= 0 (+ |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 2147483648)) (= ~methaneLevelCritical~0 0) (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 0)) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~9#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~9#1| ~waterLevel~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~2#1|))' at error location [2022-11-03 02:20:55,886 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:20:55,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:20:55,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 11] total 29 [2022-11-03 02:20:55,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722161152] [2022-11-03 02:20:55,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:20:55,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 02:20:55,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 02:20:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=3618, Unknown=0, NotChecked=0, Total=4032 [2022-11-03 02:20:55,890 INFO L87 Difference]: Start difference. First operand 790 states and 957 transitions. Second operand has 29 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 13 states have call successors, (24), 10 states have call predecessors, (24), 8 states have return successors, (21), 11 states have call predecessors, (21), 12 states have call successors, (21) [2022-11-03 02:21:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:00,107 INFO L93 Difference]: Finished difference Result 1690 states and 2121 transitions. [2022-11-03 02:21:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 02:21:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 13 states have call successors, (24), 10 states have call predecessors, (24), 8 states have return successors, (21), 11 states have call predecessors, (21), 12 states have call successors, (21) Word has length 71 [2022-11-03 02:21:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:00,116 INFO L225 Difference]: With dead ends: 1690 [2022-11-03 02:21:00,116 INFO L226 Difference]: Without dead ends: 1339 [2022-11-03 02:21:00,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 164 SyntacticMatches, 9 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5569 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=1463, Invalid=11419, Unknown=0, NotChecked=0, Total=12882 [2022-11-03 02:21:00,122 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 1016 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:00,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 970 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:21:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-11-03 02:21:00,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1141. [2022-11-03 02:21:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 796 states have (on average 1.2273869346733668) internal successors, (977), 862 states have internal predecessors, (977), 165 states have call successors, (165), 142 states have call predecessors, (165), 179 states have return successors, (250), 180 states have call predecessors, (250), 165 states have call successors, (250) [2022-11-03 02:21:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1392 transitions. [2022-11-03 02:21:00,487 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1392 transitions. Word has length 71 [2022-11-03 02:21:00,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:00,488 INFO L495 AbstractCegarLoop]: Abstraction has 1141 states and 1392 transitions. [2022-11-03 02:21:00,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 4.3076923076923075) internal successors, (112), 26 states have internal predecessors, (112), 13 states have call successors, (24), 10 states have call predecessors, (24), 8 states have return successors, (21), 11 states have call predecessors, (21), 12 states have call successors, (21) [2022-11-03 02:21:00,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1392 transitions. [2022-11-03 02:21:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-03 02:21:00,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:00,493 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, 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 02:21:00,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:00,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:00,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:00,709 INFO L85 PathProgramCache]: Analyzing trace with hash -338007072, now seen corresponding path program 1 times [2022-11-03 02:21:00,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:00,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127819396] [2022-11-03 02:21:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:01,191 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:21:01,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:01,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127819396] [2022-11-03 02:21:01,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127819396] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:21:01,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36485977] [2022-11-03 02:21:01,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:01,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:01,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:01,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:01,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:21:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:01,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:21:01,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:21:01,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:21:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 02:21:02,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36485977] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:21:02,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [257847016] [2022-11-03 02:21:02,022 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-03 02:21:02,022 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:21:02,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:21:02,022 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:21:02,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:04,342 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2022-11-03 02:21:04,477 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 47 for LOIs [2022-11-03 02:21:04,831 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 58 for LOIs [2022-11-03 02:21:05,238 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 49 for LOIs [2022-11-03 02:21:05,246 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 39 for LOIs [2022-11-03 02:21:05,253 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 34 for LOIs [2022-11-03 02:21:05,256 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:21:19,307 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18637#(and (<= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~2#1|) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 0) (<= ~methaneLevelCritical~0 1) (<= 0 (+ |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 2147483648)) (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 0)) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~9#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~9#1| ~waterLevel~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~2#1|))' at error location [2022-11-03 02:21:19,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:21:19,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:21:19,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 25 [2022-11-03 02:21:19,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241719933] [2022-11-03 02:21:19,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:21:19,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:21:19,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:19,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:21:19,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=3235, Unknown=0, NotChecked=0, Total=3540 [2022-11-03 02:21:19,311 INFO L87 Difference]: Start difference. First operand 1141 states and 1392 transitions. Second operand has 25 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (26), 8 states have call predecessors, (26), 10 states have return successors, (24), 11 states have call predecessors, (24), 11 states have call successors, (24) [2022-11-03 02:21:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:26,179 INFO L93 Difference]: Finished difference Result 3368 states and 4222 transitions. [2022-11-03 02:21:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-11-03 02:21:26,180 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (26), 8 states have call predecessors, (26), 10 states have return successors, (24), 11 states have call predecessors, (24), 11 states have call successors, (24) Word has length 71 [2022-11-03 02:21:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:26,196 INFO L225 Difference]: With dead ends: 3368 [2022-11-03 02:21:26,197 INFO L226 Difference]: Without dead ends: 2754 [2022-11-03 02:21:26,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 184 SyntacticMatches, 6 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6800 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=1486, Invalid=17420, Unknown=0, NotChecked=0, Total=18906 [2022-11-03 02:21:26,206 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1300 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 3945 mSolverCounterSat, 860 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 3945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:26,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1357 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [860 Valid, 3945 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:21:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-11-03 02:21:26,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2085. [2022-11-03 02:21:26,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 1460 states have (on average 1.2082191780821918) internal successors, (1764), 1577 states have internal predecessors, (1764), 304 states have call successors, (304), 255 states have call predecessors, (304), 320 states have return successors, (411), 325 states have call predecessors, (411), 304 states have call successors, (411) [2022-11-03 02:21:26,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2479 transitions. [2022-11-03 02:21:26,863 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2479 transitions. Word has length 71 [2022-11-03 02:21:26,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:26,863 INFO L495 AbstractCegarLoop]: Abstraction has 2085 states and 2479 transitions. [2022-11-03 02:21:26,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (26), 8 states have call predecessors, (26), 10 states have return successors, (24), 11 states have call predecessors, (24), 11 states have call successors, (24) [2022-11-03 02:21:26,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2479 transitions. [2022-11-03 02:21:26,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 02:21:26,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:26,877 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:26,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:27,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:27,095 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:27,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:27,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1688946847, now seen corresponding path program 2 times [2022-11-03 02:21:27,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:27,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271319797] [2022-11-03 02:21:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:27,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:28,196 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 02:21:28,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:28,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271319797] [2022-11-03 02:21:28,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271319797] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:21:28,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131327661] [2022-11-03 02:21:28,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:21:28,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:28,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:28,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:28,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:21:28,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:21:28,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:21:28,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 02:21:28,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:21:28,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:21:28,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131327661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:28,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:21:28,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2022-11-03 02:21:28,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608515299] [2022-11-03 02:21:28,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:28,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:21:28,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:28,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:21:28,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:21:28,450 INFO L87 Difference]: Start difference. First operand 2085 states and 2479 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 02:21:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:29,459 INFO L93 Difference]: Finished difference Result 3540 states and 4267 transitions. [2022-11-03 02:21:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:21:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 106 [2022-11-03 02:21:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:29,472 INFO L225 Difference]: With dead ends: 3540 [2022-11-03 02:21:29,472 INFO L226 Difference]: Without dead ends: 2325 [2022-11-03 02:21:29,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:21:29,477 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 66 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:29,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 370 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:21:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2022-11-03 02:21:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2142. [2022-11-03 02:21:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2142 states, 1499 states have (on average 1.2034689793195463) internal successors, (1804), 1623 states have internal predecessors, (1804), 311 states have call successors, (311), 267 states have call predecessors, (311), 331 states have return successors, (414), 327 states have call predecessors, (414), 311 states have call successors, (414) [2022-11-03 02:21:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 2529 transitions. [2022-11-03 02:21:30,241 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 2529 transitions. Word has length 106 [2022-11-03 02:21:30,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:30,241 INFO L495 AbstractCegarLoop]: Abstraction has 2142 states and 2529 transitions. [2022-11-03 02:21:30,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 02:21:30,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 2529 transitions. [2022-11-03 02:21:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-03 02:21:30,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:30,247 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:30,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:30,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 02:21:30,472 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:30,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:30,473 INFO L85 PathProgramCache]: Analyzing trace with hash -381832471, now seen corresponding path program 1 times [2022-11-03 02:21:30,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:30,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086020520] [2022-11-03 02:21:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:30,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 52 proven. 58 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 02:21:30,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086020520] [2022-11-03 02:21:30,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086020520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:21:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763975347] [2022-11-03 02:21:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:30,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:30,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:30,977 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:31,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:21:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:31,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 02:21:31,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 91 proven. 11 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-03 02:21:31,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:21:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 67 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-03 02:21:31,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763975347] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:21:31,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1072534655] [2022-11-03 02:21:31,755 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-03 02:21:31,755 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:21:31,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:21:31,755 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:21:31,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:35,738 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 307 for LOIs [2022-11-03 02:21:35,861 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2022-11-03 02:21:36,069 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 24 for LOIs [2022-11-03 02:21:36,116 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 24 for LOIs [2022-11-03 02:21:36,243 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 50 for LOIs [2022-11-03 02:21:36,257 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:21:49,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1072534655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:21:49,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:21:49,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [12, 8, 8] total 49 [2022-11-03 02:21:49,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584729504] [2022-11-03 02:21:49,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:21:49,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 02:21:49,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:49,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 02:21:49,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=2051, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 02:21:49,444 INFO L87 Difference]: Start difference. First operand 2142 states and 2529 transitions. Second operand has 30 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 02:22:22,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:22,523 INFO L93 Difference]: Finished difference Result 3612 states and 4317 transitions. [2022-11-03 02:22:22,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-03 02:22:22,524 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 122 [2022-11-03 02:22:22,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:22,536 INFO L225 Difference]: With dead ends: 3612 [2022-11-03 02:22:22,536 INFO L226 Difference]: Without dead ends: 2250 [2022-11-03 02:22:22,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 319 SyntacticMatches, 17 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2319 ImplicationChecksByTransitivity, 43.2s TimeCoverageRelationStatistics Valid=849, Invalid=5471, Unknown=0, NotChecked=0, Total=6320 [2022-11-03 02:22:22,542 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 245 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:22,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 722 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:22:22,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2022-11-03 02:22:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2206. [2022-11-03 02:22:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1545 states have (on average 1.203883495145631) internal successors, (1860), 1671 states have internal predecessors, (1860), 321 states have call successors, (321), 275 states have call predecessors, (321), 339 states have return successors, (426), 337 states have call predecessors, (426), 321 states have call successors, (426) [2022-11-03 02:22:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 2607 transitions. [2022-11-03 02:22:23,231 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 2607 transitions. Word has length 122 [2022-11-03 02:22:23,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:23,232 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 2607 transitions. [2022-11-03 02:22:23,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 02:22:23,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 2607 transitions. [2022-11-03 02:22:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-03 02:22:23,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:23,237 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:23,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:23,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-03 02:22:23,452 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:23,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1828390536, now seen corresponding path program 1 times [2022-11-03 02:22:23,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:23,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292431216] [2022-11-03 02:22:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 86 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:22:24,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:24,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292431216] [2022-11-03 02:22:24,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292431216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:24,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611281165] [2022-11-03 02:22:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:24,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:24,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:24,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:24,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:22:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:24,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:22:24,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 100 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 02:22:24,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 02:22:25,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611281165] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:25,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [963349208] [2022-11-03 02:22:25,101 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-03 02:22:25,101 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:25,101 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:25,101 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:25,102 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:27,739 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-03 02:22:27,748 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2022-11-03 02:22:27,965 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 39 for LOIs [2022-11-03 02:22:28,050 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 39 for LOIs [2022-11-03 02:22:28,193 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 40 for LOIs [2022-11-03 02:22:28,198 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 43 for LOIs [2022-11-03 02:22:28,206 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 42 for LOIs [2022-11-03 02:22:28,210 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:35,150 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '46804#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~2#1|) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 0) (<= ~methaneLevelCritical~0 1) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (<= |old(~pumpRunning~0)| 1) (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 0)) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~9#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~9#1| ~waterLevel~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~2#1|))' at error location [2022-11-03 02:22:35,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:22:35,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:22:35,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 22 [2022-11-03 02:22:35,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029366351] [2022-11-03 02:22:35,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:22:35,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:22:35,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:35,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:22:35,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=2863, Unknown=0, NotChecked=0, Total=3192 [2022-11-03 02:22:35,153 INFO L87 Difference]: Start difference. First operand 2206 states and 2607 transitions. Second operand has 22 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 5 states have call successors, (23), 4 states have call predecessors, (23), 11 states have return successors, (30), 11 states have call predecessors, (30), 5 states have call successors, (30) [2022-11-03 02:22:39,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:39,383 INFO L93 Difference]: Finished difference Result 7182 states and 9936 transitions. [2022-11-03 02:22:39,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-03 02:22:39,385 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 5 states have call successors, (23), 4 states have call predecessors, (23), 11 states have return successors, (30), 11 states have call predecessors, (30), 5 states have call successors, (30) Word has length 125 [2022-11-03 02:22:39,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:39,417 INFO L225 Difference]: With dead ends: 7182 [2022-11-03 02:22:39,417 INFO L226 Difference]: Without dead ends: 5831 [2022-11-03 02:22:39,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 374 SyntacticMatches, 4 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3794 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1099, Invalid=9821, Unknown=0, NotChecked=0, Total=10920 [2022-11-03 02:22:39,425 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 800 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:39,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 781 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:22:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-11-03 02:22:40,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 2523. [2022-11-03 02:22:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 1802 states have (on average 1.2175360710321865) internal successors, (2194), 1923 states have internal predecessors, (2194), 344 states have call successors, (344), 304 states have call predecessors, (344), 376 states have return successors, (483), 372 states have call predecessors, (483), 344 states have call successors, (483) [2022-11-03 02:22:40,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3021 transitions. [2022-11-03 02:22:40,150 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3021 transitions. Word has length 125 [2022-11-03 02:22:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:40,150 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3021 transitions. [2022-11-03 02:22:40,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 5 states have call successors, (23), 4 states have call predecessors, (23), 11 states have return successors, (30), 11 states have call predecessors, (30), 5 states have call successors, (30) [2022-11-03 02:22:40,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3021 transitions. [2022-11-03 02:22:40,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-03 02:22:40,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:40,157 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:40,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:40,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:40,372 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1551165909, now seen corresponding path program 2 times [2022-11-03 02:22:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:40,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458944022] [2022-11-03 02:22:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:41,852 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-03 02:22:41,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:41,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458944022] [2022-11-03 02:22:41,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458944022] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:41,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919434717] [2022-11-03 02:22:41,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:22:41,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:41,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:41,854 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:41,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:22:41,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 02:22:41,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:22:41,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:22:41,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:42,033 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-03 02:22:42,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:42,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919434717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:42,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:22:42,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [30] total 32 [2022-11-03 02:22:42,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091126888] [2022-11-03 02:22:42,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:42,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:42,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:42,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:42,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=874, Unknown=0, NotChecked=0, Total=992 [2022-11-03 02:22:42,039 INFO L87 Difference]: Start difference. First operand 2523 states and 3021 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:22:42,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:42,818 INFO L93 Difference]: Finished difference Result 4297 states and 5184 transitions. [2022-11-03 02:22:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:22:42,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2022-11-03 02:22:42,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:42,830 INFO L225 Difference]: With dead ends: 4297 [2022-11-03 02:22:42,830 INFO L226 Difference]: Without dead ends: 2388 [2022-11-03 02:22:42,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=991, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 02:22:42,836 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 33 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:42,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 294 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2022-11-03 02:22:43,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2318. [2022-11-03 02:22:43,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1653 states have (on average 1.2129461584996974) internal successors, (2005), 1767 states have internal predecessors, (2005), 319 states have call successors, (319), 286 states have call predecessors, (319), 345 states have return successors, (429), 341 states have call predecessors, (429), 319 states have call successors, (429) [2022-11-03 02:22:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2753 transitions. [2022-11-03 02:22:43,673 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2753 transitions. Word has length 128 [2022-11-03 02:22:43,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:43,673 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 2753 transitions. [2022-11-03 02:22:43,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-03 02:22:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2753 transitions. [2022-11-03 02:22:43,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-03 02:22:43,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:43,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 02:22:43,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:43,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:43,892 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:43,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash 899699374, now seen corresponding path program 1 times [2022-11-03 02:22:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:43,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761839351] [2022-11-03 02:22:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 53 proven. 52 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 02:22:45,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:45,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761839351] [2022-11-03 02:22:45,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761839351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:45,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100805082] [2022-11-03 02:22:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:45,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:45,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:45,116 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:45,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:22:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:45,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 02:22:45,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 78 proven. 41 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:22:45,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 74 proven. 23 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 02:22:46,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100805082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:46,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2065493579] [2022-11-03 02:22:46,833 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2022-11-03 02:22:46,833 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:46,834 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:46,834 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:46,834 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:49,229 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 29 for LOIs [2022-11-03 02:22:49,232 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2022-11-03 02:22:49,373 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 47 for LOIs [2022-11-03 02:22:49,719 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 58 for LOIs [2022-11-03 02:22:50,050 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 49 for LOIs [2022-11-03 02:22:50,058 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 41 for LOIs [2022-11-03 02:22:50,063 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 34 for LOIs [2022-11-03 02:22:50,065 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 24 for LOIs [2022-11-03 02:22:50,067 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:57,322 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '72860#(and (<= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~2#1|) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 0) (<= ~methaneLevelCritical~0 1) (<= 0 (+ |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 2147483648)) (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1| 0)) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| |timeShift_getWaterLevel_#res#1|) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~9#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification4_spec__1_~tmp___0~0#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~9#1| ~waterLevel~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~2#1|))' at error location [2022-11-03 02:22:57,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:22:57,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:22:57,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 13] total 39 [2022-11-03 02:22:57,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275340739] [2022-11-03 02:22:57,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:22:57,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-03 02:22:57,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:57,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-03 02:22:57,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=5421, Unknown=0, NotChecked=0, Total=6006 [2022-11-03 02:22:57,326 INFO L87 Difference]: Start difference. First operand 2318 states and 2753 transitions. Second operand has 39 states, 36 states have (on average 4.833333333333333) internal successors, (174), 37 states have internal predecessors, (174), 19 states have call successors, (40), 11 states have call predecessors, (40), 17 states have return successors, (43), 19 states have call predecessors, (43), 19 states have call successors, (43) [2022-11-03 02:22:59,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:59,451 INFO L93 Difference]: Finished difference Result 3168 states and 3800 transitions. [2022-11-03 02:22:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 02:22:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 36 states have (on average 4.833333333333333) internal successors, (174), 37 states have internal predecessors, (174), 19 states have call successors, (40), 11 states have call predecessors, (40), 17 states have return successors, (43), 19 states have call predecessors, (43), 19 states have call successors, (43) Word has length 132 [2022-11-03 02:22:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:59,454 INFO L225 Difference]: With dead ends: 3168 [2022-11-03 02:22:59,454 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:22:59,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 337 SyntacticMatches, 13 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4822 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1050, Invalid=8262, Unknown=0, NotChecked=0, Total=9312 [2022-11-03 02:22:59,462 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 655 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:59,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 409 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:22:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:22:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:22:59,463 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 02:22:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:22:59,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 132 [2022-11-03 02:22:59,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:59,464 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:22:59,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 36 states have (on average 4.833333333333333) internal successors, (174), 37 states have internal predecessors, (174), 19 states have call successors, (40), 11 states have call predecessors, (40), 17 states have return successors, (43), 19 states have call predecessors, (43), 19 states have call successors, (43) [2022-11-03 02:22:59,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:22:59,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:22:59,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:22:59,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:59,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 02:22:59,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:23:13,525 WARN L234 SmtUtils]: Spent 10.67s on a formula simplification. DAG size of input: 612 DAG size of output: 550 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:23:31,690 WARN L234 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 443 DAG size of output: 443 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:23:45,295 WARN L234 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 573 DAG size of output: 503 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:24:20,449 WARN L234 SmtUtils]: Spent 35.15s on a formula simplification. DAG size of input: 758 DAG size of output: 654 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:25:39,551 WARN L234 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 544 DAG size of output: 531 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:26:19,490 WARN L234 SmtUtils]: Spent 39.02s on a formula simplification. DAG size of input: 674 DAG size of output: 589 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:26:26,649 WARN L234 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 604 DAG size of output: 554 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:26:40,605 WARN L234 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 806 DAG size of output: 89 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:26:54,239 WARN L234 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 829 DAG size of output: 47 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:27:36,776 WARN L234 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 531 DAG size of output: 23 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:27:55,308 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 406 413) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (not (= 2 ~waterLevel~0))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse1 .cse6 .cse2 .cse5 .cse4) (or .cse1 .cse6 .cse2 .cse3 .cse4))) [2022-11-03 02:27:55,309 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 406 413) no Hoare annotation was computed. [2022-11-03 02:27:55,309 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 296 302) no Hoare annotation was computed. [2022-11-03 02:27:55,309 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 296 302) the Hoare annotation is: true [2022-11-03 02:27:55,309 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 924 935) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~pumpRunning~0 0))) (.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse4 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or .cse0 (= ~methaneLevelCritical~0 0) (not (= 2 ~waterLevel~0)) (= 0 ~systemActive~0)) (or .cse1 .cse2 (= ~methaneLevelCritical~0 1) .cse3) (or .cse1 .cse0 .cse2 .cse4) (or .cse2 (and .cse0 .cse3) .cse4 (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2)))) [2022-11-03 02:27:55,309 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 924 935) no Hoare annotation was computed. [2022-11-03 02:27:55,310 INFO L895 garLoopResultBuilder]: At program point L283-1(lines 283 289) the Hoare annotation is: (let ((.cse8 (= 0 ~systemActive~0))) (let ((.cse13 (= 2 ~waterLevel~0)) (.cse17 (= ~methaneLevelCritical~0 0)) (.cse14 (= |old(~pumpRunning~0)| 0)) (.cse18 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse12 (not .cse8)) (.cse15 (= ~pumpRunning~0 0)) (.cse16 (= ~waterLevel~0 1))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse3 (and .cse15 .cse16)) (.cse6 (and .cse13 .cse17 .cse14 .cse18 .cse12)) (.cse0 (not .cse14)) (.cse11 (and .cse15 .cse18)) (.cse2 (not .cse17)) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (and .cse15 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse16)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4) (or .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse0 .cse6 .cse2 .cse8 .cse9 .cse10) (or .cse0 .cse11 .cse2 .cse7 .cse12) (or .cse0 .cse11 .cse4 .cse7) (or (not (<= 0 ~head~0.base)) (not (= |#NULL.offset| 0)) (not (<= ~head~0.base 0)) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) .cse2 (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse9 (and (<= ~pumpRunning~0 1) (<= 0 ~pumpRunning~0)) (not (= ~cleanupTimeShifts~0 4)) .cse10) (or .cse5 (and .cse13 .cse14 .cse12) .cse4 .cse7 .cse8))))) [2022-11-03 02:27:55,310 INFO L895 garLoopResultBuilder]: At program point L370(line 370) the Hoare annotation is: (let ((.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (= 0 ~systemActive~0)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1)) .cse1 .cse4 .cse2 .cse3) (or .cse5 .cse6 .cse4) (or .cse0 .cse5 .cse6) (or .cse0 .cse7 .cse1) (or .cse0 .cse7 .cse5))) [2022-11-03 02:27:55,311 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1)) .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse4) (or .cse0 .cse2 .cse3) (or .cse0 .cse5 .cse1) (or .cse0 .cse5 .cse2))) [2022-11-03 02:27:55,311 INFO L895 garLoopResultBuilder]: At program point L362(line 362) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= 0 ~systemActive~0)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse1 .cse2) (or .cse4 .cse6 .cse5) (or .cse0 .cse5 .cse2 .cse3) (or .cse4 .cse6 .cse1))) [2022-11-03 02:27:55,311 INFO L899 garLoopResultBuilder]: For program point L362-1(line 362) no Hoare annotation was computed. [2022-11-03 02:27:55,312 INFO L895 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse12 (= |old(~pumpRunning~0)| 0)) (.cse11 (not .cse6))) (let ((.cse5 (and .cse3 (= 2 ~waterLevel~0) .cse12 (= |old(~waterLevel~0)| ~waterLevel~0) .cse11)) (.cse10 (not (= |old(~waterLevel~0)| 2))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (= ~waterLevel~0 1)) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not .cse12)) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4)) (or .cse2 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse9 .cse10 .cse11) (or .cse5 .cse9 .cse10 .cse6) (or .cse0 .cse2 .cse7 .cse11 .cse8) (or (and .cse3 .cse4 .cse11) .cse0 .cse1 .cse9) (or .cse0 .cse1 .cse2 .cse11))))) [2022-11-03 02:27:55,312 INFO L895 garLoopResultBuilder]: At program point L375-1(lines 356 380) the Hoare annotation is: (let ((.cse8 (= 0 ~systemActive~0))) (let ((.cse16 (= ~methaneLevelCritical~0 1)) (.cse17 (= 2 ~waterLevel~0)) (.cse14 (= ~methaneLevelCritical~0 0)) (.cse15 (= |old(~pumpRunning~0)| 0)) (.cse18 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse13 (not .cse8)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~waterLevel~0 1))) (let ((.cse5 (and .cse3 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse4)) (.cse6 (and .cse17 .cse14 .cse15 .cse18 .cse13)) (.cse9 (and .cse3 .cse17 .cse15 .cse16 .cse18 .cse13)) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse10 (not .cse16)) (.cse11 (not (<= |old(~waterLevel~0)| 2))) (.cse12 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not .cse15)) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not .cse14))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4)) (or .cse5 .cse6 .cse2 .cse7 .cse8) (or .cse5 .cse9 .cse10 .cse7 .cse8) (or .cse0 .cse6 .cse2 .cse11 .cse12) (or .cse0 .cse10 .cse7 .cse13) (or .cse0 .cse9 .cse10 .cse7 .cse8) (or (and .cse3 .cse4 .cse13) .cse0 .cse1 .cse10) (or (not (<= 0 ~head~0.base)) (not (= |#NULL.offset| 0)) (not (<= ~head~0.base 0)) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) .cse2 (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse11 (and (<= ~pumpRunning~0 1) (<= 0 ~pumpRunning~0)) (not (= ~cleanupTimeShifts~0 4)) .cse12) (or .cse0 .cse1 .cse2 .cse13))))) [2022-11-03 02:27:55,312 INFO L899 garLoopResultBuilder]: For program point L276-1(lines 275 294) no Hoare annotation was computed. [2022-11-03 02:27:55,313 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 183) no Hoare annotation was computed. [2022-11-03 02:27:55,313 INFO L895 garLoopResultBuilder]: At program point L173(lines 173 186) the Hoare annotation is: (let ((.cse10 (= |old(~pumpRunning~0)| 0)) (.cse7 (= 0 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse11 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| ~waterLevel~0)) (.cse6 (= ~waterLevel~0 1))) (let ((.cse5 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse9 (= 2 ~waterLevel~0)) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse3 (and .cse4 .cse11 .cse6)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (not .cse7)) (.cse0 (not .cse10)) (.cse14 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse15 (and .cse4 .cse11 (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse13 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse0 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1) .cse4 .cse5 .cse6) .cse2 .cse7 .cse8 (and .cse9 .cse10 .cse11 .cse12) .cse13) (or (and .cse4 .cse5 .cse11 .cse6) (and .cse9 .cse10 .cse12) .cse14 (not (= |old(~waterLevel~0)| 2)) .cse7) (or .cse0 .cse1 .cse14 .cse3) (or .cse0 .cse2 .cse8 .cse12 .cse15 .cse13) (or (not (<= ~methaneLevelCritical~0 1)) (not (<= 0 ~head~0.base)) .cse0 (not (= |#NULL.offset| 0)) (not (<= ~head~0.base 0)) (not (= 1 ~systemActive~0)) (not (= ~head~0.offset 0)) (not (<= 0 ~methaneLevelCritical~0)) (and (<= ~pumpRunning~0 1) (= |timeShift_getWaterLevel_~retValue_acc~9#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~pumpRunning~0) (= |timeShift_getWaterLevel_~retValue_acc~9#1| ~waterLevel~0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse8 (not (= ~cleanupTimeShifts~0 4)) .cse13) (or .cse0 .cse14 .cse8 .cse15 .cse13)))) [2022-11-03 02:27:55,314 INFO L895 garLoopResultBuilder]: At program point L173-1(lines 165 189) the Hoare annotation is: (let ((.cse9 (= 0 ~systemActive~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse10 (not .cse6)) (.cse0 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1)) (.cse2 (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0)) (.cse4 (not .cse9)) (.cse28 (= ~methaneLevelCritical~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse27 (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| ~waterLevel~0)) (.cse3 (= ~waterLevel~0 1))) (let ((.cse14 (not (= |#NULL.offset| 0))) (.cse15 (not (= 1 ~systemActive~0))) (.cse18 (not (= ~head~0.offset 0))) (.cse19 (not (= |#NULL.base| 0))) (.cse21 (not (<= 0 |#StackHeapBarrier|))) (.cse16 (= |timeShift_getWaterLevel_~retValue_acc~9#1| |timeShift_getWaterLevel_#res#1|)) (.cse17 (= |timeShift_getWaterLevel_~retValue_acc~9#1| ~waterLevel~0)) (.cse23 (not (= ~head~0.base 0))) (.cse24 (not (= ~cleanupTimeShifts~0 4))) (.cse11 (not (= |old(~waterLevel~0)| 1))) (.cse13 (and .cse1 .cse27 .cse3)) (.cse12 (not .cse28)) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse20 (and .cse10 .cse0 .cse1 .cse28 .cse2 .cse3 .cse4)) (.cse5 (= 2 ~waterLevel~0)) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse22 (not (<= |old(~waterLevel~0)| 2))) (.cse26 (and .cse1 .cse27 (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse25 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse4) .cse7 .cse8 .cse9) (or .cse10 .cse11 .cse12 .cse13) (or .cse14 .cse15 (and .cse16 (or .cse1 (= ~pumpRunning~0 1)) .cse17) .cse18 .cse12 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25) (or .cse10 .cse14 .cse15 .cse18 .cse19 .cse7 .cse21 .cse22 (and .cse16 .cse17) .cse23 .cse24 .cse25) (or .cse10 .cse11 .cse7 .cse13) (or .cse10 .cse12 .cse22 .cse4 .cse26 .cse25) (or .cse12 .cse8 .cse20 .cse9 (and .cse5 .cse6 .cse27 .cse4)) (or .cse10 .cse7 .cse22 .cse26 .cse25))))) [2022-11-03 02:27:55,314 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 372) no Hoare annotation was computed. [2022-11-03 02:27:55,314 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 377) no Hoare annotation was computed. [2022-11-03 02:27:55,314 INFO L895 garLoopResultBuilder]: At program point L158(line 158) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse1 .cse2) .cse3 (= 0 ~systemActive~0)) (or .cse0 .cse2 .cse3) (or .cse0 .cse4 .cse1) (or .cse0 .cse4 .cse2))) [2022-11-03 02:27:55,315 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 272 295) the Hoare annotation is: (let ((.cse8 (= 0 ~systemActive~0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 0))) (let ((.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse5 (and .cse10 (= ~waterLevel~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse10 .cse9)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 2 ~waterLevel~0) .cse9 (not .cse8))) (.cse7 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse3 .cse4 .cse5) (or .cse0 .cse3 .cse5 .cse2) (or .cse6 .cse2 .cse7 .cse8) (or .cse0 .cse1 .cse4 .cse7) (or .cse4 .cse6 .cse7 .cse8)))) [2022-11-03 02:27:55,315 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 272 295) no Hoare annotation was computed. [2022-11-03 02:27:55,315 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2022-11-03 02:27:55,315 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-11-03 02:27:55,316 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-11-03 02:27:55,316 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-11-03 02:27:55,316 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-11-03 02:27:55,316 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-11-03 02:27:55,316 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-03 02:27:55,316 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-11-03 02:27:55,317 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-11-03 02:27:55,317 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-11-03 02:27:55,317 INFO L895 garLoopResultBuilder]: At program point L225(line 225) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 1)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse6 .cse3 .cse4) (and .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0))) (and .cse0 .cse5 .cse2 .cse6 .cse3))) [2022-11-03 02:27:55,317 INFO L895 garLoopResultBuilder]: At program point L250(lines 203 252) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3) (and .cse5 .cse1 .cse2 .cse3 (not (= 0 ~systemActive~0))) (and .cse0 .cse2 .cse6 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse3))) [2022-11-03 02:27:55,318 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2022-11-03 02:27:55,318 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 213 219) no Hoare annotation was computed. [2022-11-03 02:27:55,318 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:27:55,319 INFO L895 garLoopResultBuilder]: At program point L140(lines 140 147) the Hoare annotation is: (let ((.cse2 (select |#memory_int| 11)) (.cse8 (select |#memory_int| 8)) (.cse4 (select |#memory_int| 9)) (.cse10 (select |#memory_int| 28)) (.cse5 (select |#memory_int| 7)) (.cse1 (select |#memory_int| 6)) (.cse11 (select |#memory_int| 1)) (.cse9 (select |#memory_int| 25)) (.cse3 (select |#memory_int| 10)) (.cse7 (select |#memory_int| 5)) (.cse6 (select |#memory_int| 27)) (.cse0 (select |#memory_int| 26))) (and (= (select .cse0 3) 84) (= (select .cse1 2) 102) (= (select .cse2 1) 0) (= 1 (select |#valid| 5)) (= 32 (select .cse3 1)) (= (select |#length| 3) 12) (= (select .cse4 0) 79) (= (select |#valid| 15) 1) (= 112 (select .cse5 4)) (= (select .cse1 0) 79) (= 82 (select .cse0 1)) (= 3 (select |#length| 10)) (= ~pumpRunning~0 0) (= (select |#valid| 26) 1) (= 67 (select .cse0 0)) (= (select .cse5 1) 80) (= (select .cse6 2) 0) (= 9 (select |#length| 16)) (= (select |#length| 8) 3) (= (select |#length| 6) 4) (= (select |#length| 20) 25) (= (select .cse6 1) 75) (= (select |#valid| 9) 1) (= (select |#length| 4) 13) (= 117 (select .cse5 2)) (= (select .cse7 2) 0) (= 7 (select |#length| 7)) (= (select |#length| 28) 2) (= 110 (select .cse8 1)) (= (select .cse1 1) 102) (= (select |#length| 15) 30) (= (select |#valid| 11) 1) (= (select |#valid| 27) 1) (= ~methaneLevelCritical~0 0) (= 58 (select .cse5 5)) (= (select .cse8 0) 79) (= 44 (select .cse5 0)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 30 (select |#length| 12)) (= (select |#length| 24) 13) (= (select |#length| 27) 3) (= (select .cse2 0) 10) (= 2 (select |#length| 1)) (= (select .cse9 5) 58) (= 1 |ULTIMATE.start_valid_product_~retValue_acc~13#1|) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= 5 (select |#length| 26)) (= 77 (select .cse9 1)) (= (select |#valid| 18) 1) (= (select |#valid| 22) 1) (= 3 (select |#length| 5)) (= 25 (select |#length| 23)) (= 2 (select |#length| 11)) (= 1 ~systemActive~0) (= (select .cse9 6) 0) (= (select |#valid| 24) 1) (= (select .cse0 4) 0) (= (select .cse4 3) 0) (= (select |#valid| 12) 1) (= (select |#length| 19) 9) (= (select |#valid| 28) 1) (= (select .cse10 1) 0) (= (select |#valid| 4) 1) (= (select .cse4 1) 102) (= 9 (select |#length| 13)) (= (select .cse8 2) 0) (= (select |#valid| 1) 1) (= (select .cse5 6) 0) (= (select .cse4 2) 102) (= (select |#valid| 20) 1) (= (select .cse7 0) 79) (= (select |#valid| 21) 1) (= (select |#length| 9) 4) (= (select |#length| 22) 9) (= (select |#valid| 14) 1) (= (select |#length| 21) 30) (= (select |#valid| 0) 0) (= (select |#valid| 25) 1) (= (select |#length| 17) 21) (= ~head~0.base 0) (= 101 (select .cse9 2)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= ~waterLevel~0 1) (= (select .cse3 2) 0) (= (select .cse9 0) 44) (= (select .cse11 0) 48) (= (select |#valid| 23) 1) (= 41 (select .cse10 0)) (= 116 (select .cse9 3)) (= 7 (select |#length| 25)) (= (select |#valid| 19) 1) (= 109 (select .cse5 3)) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_valid_product_~retValue_acc~13#1|) (= (select .cse1 3) 0) (= (select |#valid| 16) 1) (= (select |#valid| 6) 1) (= 30 (select |#length| 18)) (= (select .cse11 1) 0) (= 104 (select .cse9 4)) (= (select .cse3 0) 41) (= (select |#valid| 17) 1) (= (select |#valid| 10) 1) (= (select .cse7 1) 110) (= (select .cse6 0) 79) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (= (select .cse0 2) 73) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 21 (select |#length| 14)))) [2022-11-03 02:27:55,320 INFO L902 garLoopResultBuilder]: At program point L140-2(lines 140 147) the Hoare annotation is: true [2022-11-03 02:27:55,320 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:27:55,320 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2022-11-03 02:27:55,320 INFO L902 garLoopResultBuilder]: At program point L256(lines 193 260) the Hoare annotation is: true [2022-11-03 02:27:55,320 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2022-11-03 02:27:55,321 INFO L895 garLoopResultBuilder]: At program point L512-1(lines 512 518) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse6 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse3))) [2022-11-03 02:27:55,321 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 223 229) no Hoare annotation was computed. [2022-11-03 02:27:55,321 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~waterLevel~0 1))) (let ((.cse4 (and .cse0 .cse2 .cse3 .cse6)) (.cse1 (= 2 ~waterLevel~0)) (.cse5 (= ~methaneLevelCritical~0 0))) (or (and (or (and .cse0 .cse1 .cse2 .cse3) .cse4) (= ~methaneLevelCritical~0 1)) (and .cse5 (let ((.cse7 (or .cse4 (and .cse0 .cse2 (<= 2 ~waterLevel~0) .cse3)))) (or (and .cse6 .cse7) (and .cse1 .cse7)))) (and .cse1 .cse5 .cse2 .cse3 (not (= 0 ~systemActive~0)))))) [2022-11-03 02:27:55,321 INFO L895 garLoopResultBuilder]: At program point L253(lines 202 254) the Hoare annotation is: false [2022-11-03 02:27:55,322 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 247) no Hoare annotation was computed. [2022-11-03 02:27:55,322 INFO L895 garLoopResultBuilder]: At program point L241-2(lines 233 248) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse7 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse8 (<= ~waterLevel~0 2)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse0 .cse2 .cse6) (and .cse4 .cse5 .cse0 .cse7 .cse2 .cse8) (and .cse4 .cse0 .cse1 .cse2 .cse6) (and .cse4 .cse0 .cse7 .cse1 .cse2 .cse8) (and .cse5 .cse0 .cse7 .cse2 .cse8 .cse3))) [2022-11-03 02:27:55,322 INFO L899 garLoopResultBuilder]: For program point L204(lines 203 252) no Hoare annotation was computed. [2022-11-03 02:27:55,322 INFO L895 garLoopResultBuilder]: At program point L233(lines 233 248) the Hoare annotation is: (let ((.cse6 (= ~methaneLevelCritical~0 0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse7 (= ~waterLevel~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (= 2 ~waterLevel~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse1 .cse3 .cse7) (and .cse5 .cse0 .cse6 .cse1 .cse3) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse7) (and .cse5 .cse0 .cse1 .cse2 .cse3))) [2022-11-03 02:27:55,323 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1 (= ~methaneLevelCritical~0 1) .cse2 .cse3) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 (<= ~waterLevel~0 2) .cse3))) [2022-11-03 02:27:55,323 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 304 328) the Hoare annotation is: (let ((.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (< ~waterLevel~0 2)) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse3 .cse6 .cse4 .cse5) (or .cse7 .cse0 .cse1 .cse6 .cse5) (or .cse7 .cse0 .cse1 .cse2 .cse5))) [2022-11-03 02:27:55,323 INFO L895 garLoopResultBuilder]: At program point L318(line 318) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 2))) (let ((.cse6 (not (<= 0 ~head~0.base))) (.cse7 (not (= |#NULL.offset| 0))) (.cse8 (not (<= ~head~0.base 0))) (.cse9 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~head~0.offset 0))) (.cse11 (not (= |#NULL.base| 0))) (.cse12 (not (<= 0 |#StackHeapBarrier|))) (.cse13 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~3#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~3#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (let ((.cse17 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~10#1|))) (or (and .cse17 (= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~10#1|) (not .cse3)) (and .cse17 (= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~10#1|) .cse3))))) (.cse14 (not (= ~cleanupTimeShifts~0 4))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse15 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse16 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8 .cse9 .cse10 .cse11 .cse2 .cse12 .cse13 .cse14) (or .cse5 .cse6 .cse0 .cse7 .cse8 .cse9 .cse10 .cse15 .cse11 .cse12 .cse13 .cse14) (or .cse0 .cse15 .cse1 .cse3 .cse4) (or .cse5 .cse0 .cse16 .cse15 .cse4) (or .cse5 .cse0 .cse16 .cse2 .cse4)))) [2022-11-03 02:27:55,324 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 320) no Hoare annotation was computed. [2022-11-03 02:27:55,324 INFO L895 garLoopResultBuilder]: At program point L308(lines 308 325) the Hoare annotation is: (let ((.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (< ~waterLevel~0 2)) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse3 .cse6 .cse4 .cse5) (or .cse7 .cse0 .cse1 .cse6 .cse5) (or .cse7 .cse0 .cse1 .cse2 .cse5))) [2022-11-03 02:27:55,324 INFO L895 garLoopResultBuilder]: At program point L323(line 323) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= ~waterLevel~0 2))) (.cse6 (< ~waterLevel~0 2)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse5 .cse2 .cse6 .cse3) (or .cse1 .cse4 .cse5 .cse6 .cse3))) [2022-11-03 02:27:55,324 INFO L899 garLoopResultBuilder]: For program point L323-1(lines 304 328) no Hoare annotation was computed. [2022-11-03 02:27:55,325 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 304 328) no Hoare annotation was computed. [2022-11-03 02:27:55,325 INFO L895 garLoopResultBuilder]: At program point L394(line 394) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0)) (.cse16 (= |old(~pumpRunning~0)| 0))) (let ((.cse5 (not (= ~waterLevel~0 1))) (.cse0 (not .cse16)) (.cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 1) .cse16 (not .cse4))) (.cse2 (not (= 2 ~waterLevel~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |#NULL.offset| 0))) (.cse8 (and (= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~10#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~3#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|))) (.cse9 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~head~0.offset 0))) (.cse11 (not (<= ~waterLevel~0 2))) (.cse12 (not (= |#NULL.base| 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse13 (< ~waterLevel~0 2)) (.cse14 (not (<= 0 |#StackHeapBarrier|))) (.cse15 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse4) (or (not (<= 0 ~head~0.base)) .cse0 .cse7 (not (<= ~head~0.base 0)) .cse8 .cse9 .cse10 .cse6 .cse11 .cse12 .cse13 .cse14 .cse15) (or .cse0 .cse1 .cse2 .cse6 .cse4) (or .cse7 .cse8 .cse9 .cse10 (not (<= |old(~pumpRunning~0)| 0)) .cse11 .cse12 .cse3 .cse13 .cse14 (not (<= 0 |old(~pumpRunning~0)|)) (not (= ~head~0.base 0)) .cse15)))) [2022-11-03 02:27:55,326 INFO L895 garLoopResultBuilder]: At program point L394-1(line 394) the Hoare annotation is: (let ((.cse4 (not (= ~waterLevel~0 1))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 1) (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret14#1|))) (.cse3 (= 0 ~systemActive~0)) (.cse6 (not (<= 0 ~head~0.base))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |#NULL.offset| 0))) (.cse8 (not (<= ~head~0.base 0))) (.cse9 (not (= 1 ~systemActive~0))) (.cse10 (not (= ~head~0.offset 0))) (.cse11 (and (<= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~10#1|) (<= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~3#1| 1) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~3#1|) (<= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~10#1| 0) (<= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1|) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) (<= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 1) (<= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 1) (<= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (<= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 0) (<= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|))) (.cse12 (not (<= ~waterLevel~0 2))) (.cse13 (not (= |#NULL.base| 0))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse14 (< ~waterLevel~0 2)) (.cse15 (not (<= 0 |#StackHeapBarrier|))) (.cse16 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 (not (= 2 ~waterLevel~0)) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse3) (or .cse4 .cse0 .cse5 .cse3) (or .cse6 .cse0 .cse7 .cse8 .cse9 .cse10 .cse5 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse0 .cse5 .cse12 .cse2 .cse14 .cse3) (or .cse6 .cse0 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse1 .cse14 .cse15 .cse16))) [2022-11-03 02:27:55,326 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 912 923) no Hoare annotation was computed. [2022-11-03 02:27:55,326 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 912 923) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (not (= ~pumpRunning~0 0))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= 0 ~systemActive~0))) (let ((.cse0 (let ((.cse9 (not .cse5))) (and (or .cse3 .cse4 .cse9) (or .cse3 .cse7 .cse9)))) (.cse1 (not (= ~methaneLevelCritical~0 1))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse2) (or .cse3 .cse7 .cse1 .cse5 .cse8) (or .cse6 .cse4 .cse2 .cse5) (or .cse3 .cse7 .cse6 .cse5 .cse8)))) [2022-11-03 02:27:55,327 INFO L895 garLoopResultBuilder]: At program point L349(line 349) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (< ~waterLevel~0 2)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~waterLevel~0 1))) (.cse0 (not .cse8)) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse1 .cse2 .cse5) (or .cse0 .cse1 .cse3 .cse7 .cse4 .cse5) (or .cse6 .cse8 .cse2 .cse5) (or .cse6 .cse0 .cse1 .cse7 .cse5)))) [2022-11-03 02:27:55,327 INFO L899 garLoopResultBuilder]: For program point L349-1(lines 330 354) no Hoare annotation was computed. [2022-11-03 02:27:55,327 INFO L895 garLoopResultBuilder]: At program point L344(line 344) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= ~waterLevel~0 2))) (.cse6 (< ~waterLevel~0 2)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (or .cse3 .cse5 .cse4 .cse6 .cse2) (or .cse3 .cse1 .cse5 .cse6 .cse2))) [2022-11-03 02:27:55,327 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= ~waterLevel~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= ~waterLevel~0 2))) (.cse6 (< ~waterLevel~0 2)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse5 .cse2 .cse6 .cse3) (or .cse0 .cse4 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~4#1|))) (or .cse1 .cse4 .cse5 .cse6 .cse3))) [2022-11-03 02:27:55,328 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 346) no Hoare annotation was computed. [2022-11-03 02:27:55,328 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 330 354) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (< ~waterLevel~0 2)) (.cse6 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse5) (or .cse0 .cse1 .cse3 .cse7 .cse4 .cse5) (or .cse6 .cse0 .cse1 .cse7 .cse5))) [2022-11-03 02:27:55,328 INFO L895 garLoopResultBuilder]: At program point L334(lines 334 351) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (< ~waterLevel~0 2)) (.cse6 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse5) (or .cse0 .cse1 .cse3 .cse7 .cse4 .cse5) (or .cse6 .cse0 .cse1 .cse7 .cse5))) [2022-11-03 02:27:55,328 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 330 354) no Hoare annotation was computed. [2022-11-03 02:27:55,329 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 414 424) the Hoare annotation is: true [2022-11-03 02:27:55,329 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 414 424) no Hoare annotation was computed. [2022-11-03 02:27:55,333 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:27:55,335 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:27:55,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:27:55 BoogieIcfgContainer [2022-11-03 02:27:55,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:27:55,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:27:55,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:27:55,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:27:55,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:18:50" (3/4) ... [2022-11-03 02:27:55,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:27:55,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 02:27:55,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:27:55,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:27:55,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:27:55,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:27:55,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:27:55,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:27:55,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 02:27:55,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 02:27:55,403 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2022-11-03 02:27:55,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 02:27:55,404 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 02:27:55,405 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:27:55,405 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:27:55,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:27:55,406 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:27:55,440 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((unknown-#memory_int-unknown[26][3] == 84 && unknown-#memory_int-unknown[6][2] == 102) && unknown-#memory_int-unknown[11][1] == 0) && 1 == \valid[5]) && 32 == unknown-#memory_int-unknown[10][1]) && unknown-#length-unknown[3] == 12) && unknown-#memory_int-unknown[9][0] == 79) && \valid[15] == 1) && 112 == unknown-#memory_int-unknown[7][4]) && unknown-#memory_int-unknown[6][0] == 79) && 82 == unknown-#memory_int-unknown[26][1]) && 3 == unknown-#length-unknown[10]) && pumpRunning == 0) && \valid[26] == 1) && 67 == unknown-#memory_int-unknown[26][0]) && unknown-#memory_int-unknown[7][1] == 80) && unknown-#memory_int-unknown[27][2] == 0) && 9 == unknown-#length-unknown[16]) && unknown-#length-unknown[8] == 3) && unknown-#length-unknown[6] == 4) && unknown-#length-unknown[20] == 25) && unknown-#memory_int-unknown[27][1] == 75) && \valid[9] == 1) && unknown-#length-unknown[4] == 13) && 117 == unknown-#memory_int-unknown[7][2]) && unknown-#memory_int-unknown[5][2] == 0) && 7 == unknown-#length-unknown[7]) && unknown-#length-unknown[28] == 2) && 110 == unknown-#memory_int-unknown[8][1]) && unknown-#memory_int-unknown[6][1] == 102) && unknown-#length-unknown[15] == 30) && \valid[11] == 1) && \valid[27] == 1) && methaneLevelCritical == 0) && 58 == unknown-#memory_int-unknown[7][5]) && unknown-#memory_int-unknown[8][0] == 79) && 44 == unknown-#memory_int-unknown[7][0]) && 31 == unknown-#length-unknown[2]) && head == 0) && tmp == 1) && 30 == unknown-#length-unknown[12]) && unknown-#length-unknown[24] == 13) && unknown-#length-unknown[27] == 3) && unknown-#memory_int-unknown[11][0] == 10) && 2 == unknown-#length-unknown[1]) && unknown-#memory_int-unknown[25][5] == 58) && 1 == retValue_acc) && \valid[3] == 1) && \valid[7] == 1) && 5 == unknown-#length-unknown[26]) && 77 == unknown-#memory_int-unknown[25][1]) && \valid[18] == 1) && \valid[22] == 1) && 3 == unknown-#length-unknown[5]) && 25 == unknown-#length-unknown[23]) && 2 == unknown-#length-unknown[11]) && 1 == systemActive) && unknown-#memory_int-unknown[25][6] == 0) && \valid[24] == 1) && unknown-#memory_int-unknown[26][4] == 0) && unknown-#memory_int-unknown[9][3] == 0) && \valid[12] == 1) && unknown-#length-unknown[19] == 9) && \valid[28] == 1) && unknown-#memory_int-unknown[28][1] == 0) && \valid[4] == 1) && unknown-#memory_int-unknown[9][1] == 102) && 9 == unknown-#length-unknown[13]) && unknown-#memory_int-unknown[8][2] == 0) && \valid[1] == 1) && unknown-#memory_int-unknown[7][6] == 0) && unknown-#memory_int-unknown[9][2] == 102) && \valid[20] == 1) && unknown-#memory_int-unknown[5][0] == 79) && \valid[21] == 1) && unknown-#length-unknown[9] == 4) && unknown-#length-unknown[22] == 9) && \valid[14] == 1) && unknown-#length-unknown[21] == 30) && \valid[0] == 0) && \valid[25] == 1) && unknown-#length-unknown[17] == 21) && head == 0) && 101 == unknown-#memory_int-unknown[25][2]) && \valid[2] == 1) && #NULL == 0) && waterLevel == 1) && unknown-#memory_int-unknown[10][2] == 0) && unknown-#memory_int-unknown[25][0] == 44) && unknown-#memory_int-unknown[1][0] == 48) && \valid[23] == 1) && 41 == unknown-#memory_int-unknown[28][0]) && 116 == unknown-#memory_int-unknown[25][3]) && 7 == unknown-#length-unknown[25]) && \valid[19] == 1) && 109 == unknown-#memory_int-unknown[7][3]) && \result == retValue_acc) && unknown-#memory_int-unknown[6][3] == 0) && \valid[16] == 1) && \valid[6] == 1) && 30 == unknown-#length-unknown[18]) && unknown-#memory_int-unknown[1][1] == 0) && 104 == unknown-#memory_int-unknown[25][4]) && unknown-#memory_int-unknown[10][0] == 41) && \valid[17] == 1) && \valid[10] == 1) && unknown-#memory_int-unknown[5][1] == 110) && unknown-#memory_int-unknown[27][0] == 79) && \valid[8] == 1) && \valid[13] == 1) && unknown-#memory_int-unknown[26][2] == 73) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) && 21 == unknown-#length-unknown[14] [2022-11-03 02:27:55,441 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(methaneLevelCritical == 1))) && ((((((pumpRunning == \old(pumpRunning) && 2 == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && (((!(methaneLevelCritical == 0) || (((pumpRunning == \old(pumpRunning) && 2 == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2022-11-03 02:27:55,442 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(methaneLevelCritical == 1))) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2))) && (((((((((((!(0 <= head) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (pumpRunning <= 1 && 0 <= pumpRunning)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || ((2 == waterLevel && \old(pumpRunning) == 0) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) [2022-11-03 02:27:55,444 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1)) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || (((((pumpRunning == 0 && 2 == waterLevel) && \old(pumpRunning) == 0) && methaneLevelCritical == 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((((pumpRunning == 0 && 2 == waterLevel) && \old(pumpRunning) == 0) && methaneLevelCritical == 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1))) && (((((((((((!(0 <= head) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (pumpRunning <= 1 && 0 <= pumpRunning)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) [2022-11-03 02:27:55,444 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || waterLevel < 2) || 0 == systemActive) && (((!(waterLevel == 1) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || 0 == systemActive)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(methaneLevelCritical == 1)) || 0 == systemActive) [2022-11-03 02:27:55,447 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || waterLevel < 2) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || 0 == systemActive)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-03 02:27:55,448 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1)) && (((((((((!(\old(pumpRunning) == 0) && tmp == 1) && pumpRunning == 0) && tmp == methaneLevelCritical) && waterLevel == 1) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((2 == waterLevel && \old(pumpRunning) == 0) && tmp == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel)))) && (((((((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) || ((2 == waterLevel && \old(pumpRunning) == 0) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && (((((((((((((!(methaneLevelCritical <= 1) || !(0 <= head)) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning <= 1 && retValue_acc == \result) && 0 <= pumpRunning) && retValue_acc == waterLevel)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-03 02:27:55,448 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((tmp == 1 && pumpRunning == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive)) || ((2 == waterLevel && \old(pumpRunning) == 0) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || ((retValue_acc == \result && (pumpRunning == 0 || pumpRunning == 1)) && retValue_acc == waterLevel)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((((((!(\old(pumpRunning) == 0) && tmp == 1) && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(#NULL == 0)) || !(methaneLevelCritical == 1)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (retValue_acc == \result && retValue_acc == waterLevel)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(methaneLevelCritical == 0) || !(\old(waterLevel) == 2)) || ((((((!(\old(pumpRunning) == 0) && tmp == 1) && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive))) || 0 == systemActive) || (((2 == waterLevel && \old(pumpRunning) == 0) && tmp == waterLevel) && !(0 == systemActive)))) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-03 02:27:55,448 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(2 == waterLevel)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((((((((((!(0 <= head) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || (((((((((((0 <= retValue_acc && retValue_acc <= 1) && 1 <= retValue_acc) && retValue_acc <= 0) && 0 <= tmp) && 1 <= tmp___0) && \result <= 1) && tmp___0 <= 1) && \result <= 0) && 1 <= \result) && tmp <= 0) && 0 <= \result)) || !(waterLevel <= 2)) || !(#NULL == 0)) || waterLevel < 2) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(cleanupTimeShifts == 4))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || ((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || waterLevel < 2) || 0 == systemActive)) && ((((((((((((!(0 <= head) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || (((((((((((0 <= retValue_acc && retValue_acc <= 1) && 1 <= retValue_acc) && retValue_acc <= 0) && 0 <= tmp) && 1 <= tmp___0) && \result <= 1) && tmp___0 <= 1) && \result <= 0) && 1 <= \result) && tmp <= 0) && 0 <= \result)) || !(waterLevel <= 2)) || !(#NULL == 0)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(cleanupTimeShifts == 4)) [2022-11-03 02:27:55,451 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(methaneLevelCritical == 0) && !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) [2022-11-03 02:27:55,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:27:55,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:27:55,503 INFO L158 Benchmark]: Toolchain (without parser) took 546647.77ms. Allocated memory was 138.4MB in the beginning and 1.1GB in the end (delta: 943.7MB). Free memory was 98.2MB in the beginning and 640.5MB in the end (delta: -542.3MB). Peak memory consumption was 399.4MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,504 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:27:55,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.28ms. Allocated memory is still 138.4MB. Free memory was 98.1MB in the beginning and 103.6MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.63ms. Allocated memory is still 138.4MB. Free memory was 103.6MB in the beginning and 100.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,505 INFO L158 Benchmark]: Boogie Preprocessor took 68.48ms. Allocated memory is still 138.4MB. Free memory was 100.9MB in the beginning and 98.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,506 INFO L158 Benchmark]: RCFGBuilder took 853.49ms. Allocated memory is still 138.4MB. Free memory was 98.7MB in the beginning and 67.4MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,509 INFO L158 Benchmark]: TraceAbstraction took 544835.48ms. Allocated memory was 138.4MB in the beginning and 1.1GB in the end (delta: 943.7MB). Free memory was 66.5MB in the beginning and 646.8MB in the end (delta: -580.3MB). Peak memory consumption was 643.2MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,509 INFO L158 Benchmark]: Witness Printer took 120.60ms. Allocated memory is still 1.1GB. Free memory was 646.8MB in the beginning and 640.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:27:55,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 664.28ms. Allocated memory is still 138.4MB. Free memory was 98.1MB in the beginning and 103.6MB in the end (delta: -5.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.63ms. Allocated memory is still 138.4MB. Free memory was 103.6MB in the beginning and 100.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.48ms. Allocated memory is still 138.4MB. Free memory was 100.9MB in the beginning and 98.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 853.49ms. Allocated memory is still 138.4MB. Free memory was 98.7MB in the beginning and 67.4MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 544835.48ms. Allocated memory was 138.4MB in the beginning and 1.1GB in the end (delta: 943.7MB). Free memory was 66.5MB in the beginning and 646.8MB in the end (delta: -580.3MB). Peak memory consumption was 643.2MB. Max. memory is 16.1GB. * Witness Printer took 120.60ms. Allocated memory is still 1.1GB. Free memory was 646.8MB in the beginning and 640.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 158]: 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 10 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 544.7s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 110.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 295.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5415 SdHoareTripleChecker+Valid, 18.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5362 mSDsluCounter, 7463 SdHoareTripleChecker+Invalid, 15.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7076 mSDsCounter, 3273 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15330 IncrementalHoareTripleChecker+Invalid, 18603 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3273 mSolverCounterUnsat, 1505 mSDtfsCounter, 15330 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2936 GetRequests, 2107 SyntacticMatches, 65 SemanticMatches, 764 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28361 ImplicationChecksByTransitivity, 167.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2523occurred in iteration=15, InterpolantAutomatonStates: 395, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 4829 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 6280 PreInvPairs, 6702 NumberOfFragments, 4678 HoareAnnotationTreeSize, 6280 FomulaSimplifications, 969496 FormulaSimplificationTreeSizeReduction, 207.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 3355206 FormulaSimplificationTreeSizeReductionInter, 88.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 16.0s InterpolantComputationTime, 2118 NumberOfCodeBlocks, 1992 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2810 ConstructedInterpolants, 0 QuantifiedInterpolants, 9497 SizeOfPredicates, 95 NumberOfNonLiveVariables, 5018 ConjunctsInSsa, 271 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 1679/2154 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: OVERALL_TIME: 18.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 18, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 153, DAG_INTERPRETER_EARLY_EXITS: 4, TOOLS_POST_APPLICATIONS: 201, TOOLS_POST_TIME: 3.6s, TOOLS_POST_CALL_APPLICATIONS: 98, TOOLS_POST_CALL_TIME: 8.7s, TOOLS_POST_RETURN_APPLICATIONS: 82, TOOLS_POST_RETURN_TIME: 3.7s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 381, TOOLS_QUANTIFIERELIM_TIME: 15.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 477, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 89, DOMAIN_JOIN_TIME: 2.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 153, DOMAIN_ISBOTTOM_TIME: 0.3s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 6.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 6.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 82, CALL_SUMMARIZER_CACHE_MISSES: 16, CALL_SUMMARIZER_OVERALL_TIME: 0.5s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1704, DAG_COMPRESSION_RETAINED_NODES: 403, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1)) && (((((((((!(\old(pumpRunning) == 0) && tmp == 1) && pumpRunning == 0) && tmp == methaneLevelCritical) && waterLevel == 1) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((2 == waterLevel && \old(pumpRunning) == 0) && tmp == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel)))) && (((((((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) || ((2 == waterLevel && \old(pumpRunning) == 0) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && (((((((((((((!(methaneLevelCritical <= 1) || !(0 <= head)) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning <= 1 && retValue_acc == \result) && 0 <= pumpRunning) && retValue_acc == waterLevel)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) || ((((pumpRunning == 0 && 2 == waterLevel) && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0)) || ((((2 == waterLevel && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive))) || ((((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && 2 == waterLevel) && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((unknown-#memory_int-unknown[26][3] == 84 && unknown-#memory_int-unknown[6][2] == 102) && unknown-#memory_int-unknown[11][1] == 0) && 1 == \valid[5]) && 32 == unknown-#memory_int-unknown[10][1]) && unknown-#length-unknown[3] == 12) && unknown-#memory_int-unknown[9][0] == 79) && \valid[15] == 1) && 112 == unknown-#memory_int-unknown[7][4]) && unknown-#memory_int-unknown[6][0] == 79) && 82 == unknown-#memory_int-unknown[26][1]) && 3 == unknown-#length-unknown[10]) && pumpRunning == 0) && \valid[26] == 1) && 67 == unknown-#memory_int-unknown[26][0]) && unknown-#memory_int-unknown[7][1] == 80) && unknown-#memory_int-unknown[27][2] == 0) && 9 == unknown-#length-unknown[16]) && unknown-#length-unknown[8] == 3) && unknown-#length-unknown[6] == 4) && unknown-#length-unknown[20] == 25) && unknown-#memory_int-unknown[27][1] == 75) && \valid[9] == 1) && unknown-#length-unknown[4] == 13) && 117 == unknown-#memory_int-unknown[7][2]) && unknown-#memory_int-unknown[5][2] == 0) && 7 == unknown-#length-unknown[7]) && unknown-#length-unknown[28] == 2) && 110 == unknown-#memory_int-unknown[8][1]) && unknown-#memory_int-unknown[6][1] == 102) && unknown-#length-unknown[15] == 30) && \valid[11] == 1) && \valid[27] == 1) && methaneLevelCritical == 0) && 58 == unknown-#memory_int-unknown[7][5]) && unknown-#memory_int-unknown[8][0] == 79) && 44 == unknown-#memory_int-unknown[7][0]) && 31 == unknown-#length-unknown[2]) && head == 0) && tmp == 1) && 30 == unknown-#length-unknown[12]) && unknown-#length-unknown[24] == 13) && unknown-#length-unknown[27] == 3) && unknown-#memory_int-unknown[11][0] == 10) && 2 == unknown-#length-unknown[1]) && unknown-#memory_int-unknown[25][5] == 58) && 1 == retValue_acc) && \valid[3] == 1) && \valid[7] == 1) && 5 == unknown-#length-unknown[26]) && 77 == unknown-#memory_int-unknown[25][1]) && \valid[18] == 1) && \valid[22] == 1) && 3 == unknown-#length-unknown[5]) && 25 == unknown-#length-unknown[23]) && 2 == unknown-#length-unknown[11]) && 1 == systemActive) && unknown-#memory_int-unknown[25][6] == 0) && \valid[24] == 1) && unknown-#memory_int-unknown[26][4] == 0) && unknown-#memory_int-unknown[9][3] == 0) && \valid[12] == 1) && unknown-#length-unknown[19] == 9) && \valid[28] == 1) && unknown-#memory_int-unknown[28][1] == 0) && \valid[4] == 1) && unknown-#memory_int-unknown[9][1] == 102) && 9 == unknown-#length-unknown[13]) && unknown-#memory_int-unknown[8][2] == 0) && \valid[1] == 1) && unknown-#memory_int-unknown[7][6] == 0) && unknown-#memory_int-unknown[9][2] == 102) && \valid[20] == 1) && unknown-#memory_int-unknown[5][0] == 79) && \valid[21] == 1) && unknown-#length-unknown[9] == 4) && unknown-#length-unknown[22] == 9) && \valid[14] == 1) && unknown-#length-unknown[21] == 30) && \valid[0] == 0) && \valid[25] == 1) && unknown-#length-unknown[17] == 21) && head == 0) && 101 == unknown-#memory_int-unknown[25][2]) && \valid[2] == 1) && #NULL == 0) && waterLevel == 1) && unknown-#memory_int-unknown[10][2] == 0) && unknown-#memory_int-unknown[25][0] == 44) && unknown-#memory_int-unknown[1][0] == 48) && \valid[23] == 1) && 41 == unknown-#memory_int-unknown[28][0]) && 116 == unknown-#memory_int-unknown[25][3]) && 7 == unknown-#length-unknown[25]) && \valid[19] == 1) && 109 == unknown-#memory_int-unknown[7][3]) && \result == retValue_acc) && unknown-#memory_int-unknown[6][3] == 0) && \valid[16] == 1) && \valid[6] == 1) && 30 == unknown-#length-unknown[18]) && unknown-#memory_int-unknown[1][1] == 0) && 104 == unknown-#memory_int-unknown[25][4]) && unknown-#memory_int-unknown[10][0] == 41) && \valid[17] == 1) && \valid[10] == 1) && unknown-#memory_int-unknown[5][1] == 110) && unknown-#memory_int-unknown[27][0] == 79) && \valid[8] == 1) && \valid[13] == 1) && unknown-#memory_int-unknown[26][2] == 73) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) && 21 == unknown-#length-unknown[14] - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(methaneLevelCritical == 1))) && ((((((pumpRunning == \old(pumpRunning) && 2 == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && (((!(methaneLevelCritical == 0) || (((pumpRunning == \old(pumpRunning) && 2 == waterLevel) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || waterLevel < 2) || 0 == systemActive) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || 0 == systemActive)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) || ((((pumpRunning == 0 && 2 == waterLevel) && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0)) || ((((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && 2 == waterLevel) && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((((((((((((((tmp == 1 && pumpRunning == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive)) || ((2 == waterLevel && \old(pumpRunning) == 0) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1))) && (((((((((((!(#NULL == 0) || !(1 == systemActive)) || ((retValue_acc == \result && (pumpRunning == 0 || pumpRunning == 1)) && retValue_acc == waterLevel)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((((((!(\old(pumpRunning) == 0) && tmp == 1) && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive))) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(#NULL == 0)) || !(methaneLevelCritical == 1)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (retValue_acc == \result && retValue_acc == waterLevel)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(methaneLevelCritical == 0) || !(\old(waterLevel) == 2)) || ((((((!(\old(pumpRunning) == 0) && tmp == 1) && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && !(0 == systemActive))) || 0 == systemActive) || (((2 == waterLevel && \old(pumpRunning) == 0) && tmp == waterLevel) && !(0 == systemActive)))) && ((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) <= 2)) || ((pumpRunning == 0 && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(methaneLevelCritical == 1))) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2))) && (((((((((((!(0 <= head) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (pumpRunning <= 1 && 0 <= pumpRunning)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || ((2 == waterLevel && \old(pumpRunning) == 0) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 334]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || waterLevel < 2) || 0 == systemActive) && (((!(waterLevel == 1) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || 0 == systemActive)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(methaneLevelCritical == 1)) || 0 == systemActive) - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: ((((((((2 == waterLevel && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) && !(0 == systemActive)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && 2 == waterLevel) && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0)) || ((((2 == waterLevel && methaneLevelCritical == 0) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive))) || ((((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && 2 == waterLevel) && tmp == 1) && methaneLevelCritical == 1) && splverifierCounter == 0) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(methaneLevelCritical == 0) && !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(2 == waterLevel)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 1)) || 0 == systemActive)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && ((((((((((((!(0 <= head) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || (((((((((((0 <= retValue_acc && retValue_acc <= 1) && 1 <= retValue_acc) && retValue_acc <= 0) && 0 <= tmp) && 1 <= tmp___0) && \result <= 1) && tmp___0 <= 1) && \result <= 0) && 1 <= \result) && tmp <= 0) && 0 <= \result)) || !(waterLevel <= 2)) || !(#NULL == 0)) || waterLevel < 2) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(cleanupTimeShifts == 4))) && (((((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || ((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == aux-isMethaneAlarm()-aux)) || waterLevel < 2) || 0 == systemActive)) && ((((((((((((!(0 <= head) || !(\old(pumpRunning) == 0)) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || (((((((((((0 <= retValue_acc && retValue_acc <= 1) && 1 <= retValue_acc) && retValue_acc <= 0) && 0 <= tmp) && 1 <= tmp___0) && \result <= 1) && tmp___0 <= 1) && \result <= 0) && 1 <= \result) && tmp <= 0) && 0 <= \result)) || !(waterLevel <= 2)) || !(#NULL == 0)) || !(methaneLevelCritical == 1)) || waterLevel < 2) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(cleanupTimeShifts == 4)) - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1)) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1) || (((((pumpRunning == 0 && 2 == waterLevel) && \old(pumpRunning) == 0) && methaneLevelCritical == 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || ((((2 == waterLevel && methaneLevelCritical == 0) && \old(pumpRunning) == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((((pumpRunning == 0 && 2 == waterLevel) && \old(pumpRunning) == 0) && methaneLevelCritical == 1) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) == 2)) || 0 == systemActive)) && (((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 1))) && (((((((((((!(0 <= head) || !(#NULL == 0)) || !(head <= 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (pumpRunning <= 1 && 0 <= pumpRunning)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) RESULT: Ultimate proved your program to be correct! [2022-11-03 02:27:55,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a8b23a6-84ed-4336-a0bb-d03a6ea80c4f/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