./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product62.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_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/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_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/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_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/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 34b47c00ac265c7154b048b065075686f0b0d02157935b615817b802464c404c --- 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 01:55:34,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:55:34,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:55:34,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:55:34,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:55:34,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:55:34,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:55:34,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:55:34,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:55:34,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:55:34,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:55:34,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:55:34,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:55:34,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:55:34,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:55:34,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:55:34,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:55:34,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:55:34,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:55:34,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:55:34,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:55:34,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:55:34,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:55:34,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:55:34,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:55:34,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:55:34,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:55:34,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:55:34,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:55:34,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:55:34,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:55:34,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:55:34,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:55:34,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:55:34,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:55:34,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:55:34,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:55:34,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:55:34,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:55:34,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:55:34,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:55:34,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:55:34,687 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:55:34,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:55:34,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:55:34,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:55:34,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:55:34,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:55:34,693 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:55:34,694 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:55:34,694 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:55:34,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:55:34,695 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:55:34,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:55:34,696 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:55:34,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:55:34,696 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:55:34,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:55:34,696 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:55:34,697 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:55:34,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:55:34,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:55:34,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:55:34,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:55:34,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:55:34,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:55:34,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:55:34,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:55:34,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:55:34,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:55:34,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:55:34,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:55:34,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:55:34,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:55:34,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:34,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:55:34,702 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:55:34,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:55:34,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:55:34,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:55:34,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:55:34,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:55:34,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:55:34,704 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_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b47c00ac265c7154b048b065075686f0b0d02157935b615817b802464c404c [2022-11-03 01:55:35,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:55:35,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:55:35,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:55:35,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:55:35,088 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:55:35,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2022-11-03 01:55:35,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/data/4497e2aa7/8dc06f4973bf4c8ca8fc43a42f8bdf78/FLAGd879f9958 [2022-11-03 01:55:35,731 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:55:35,731 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2022-11-03 01:55:35,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/data/4497e2aa7/8dc06f4973bf4c8ca8fc43a42f8bdf78/FLAGd879f9958 [2022-11-03 01:55:36,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/data/4497e2aa7/8dc06f4973bf4c8ca8fc43a42f8bdf78 [2022-11-03 01:55:36,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:55:36,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:55:36,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:36,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:55:36,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:55:36,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3380e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36, skipping insertion in model container [2022-11-03 01:55:36,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:55:36,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:55:36,367 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_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c[19180,19193] [2022-11-03 01:55:36,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:36,381 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:55:36,473 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_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c[19180,19193] [2022-11-03 01:55:36,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:36,493 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:55:36,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36 WrapperNode [2022-11-03 01:55:36,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:36,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:36,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:55:36,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:55:36,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,551 INFO L138 Inliner]: procedures = 60, calls = 164, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 297 [2022-11-03 01:55:36,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:36,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:55:36,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:55:36,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:55:36,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,579 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:55:36,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:55:36,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:55:36,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:55:36,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (1/1) ... [2022-11-03 01:55:36,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:36,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:36,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:55:36,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:55:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:55:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 01:55:36,689 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 01:55:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 01:55:36,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 01:55:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 01:55:36,690 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 01:55:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:55:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:55:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 01:55:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 01:55:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:55:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:55:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 01:55:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 01:55:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 01:55:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 01:55:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 01:55:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 01:55:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:55:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 01:55:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 01:55:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:55:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:55:36,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:55:36,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:55:37,181 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:55:37,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:55:37,358 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:55:37,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:37 BoogieIcfgContainer [2022-11-03 01:55:37,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:55:37,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:55:37,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:55:37,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:55:37,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:55:36" (1/3) ... [2022-11-03 01:55:37,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb56471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:37, skipping insertion in model container [2022-11-03 01:55:37,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:36" (2/3) ... [2022-11-03 01:55:37,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb56471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:37, skipping insertion in model container [2022-11-03 01:55:37,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:37" (3/3) ... [2022-11-03 01:55:37,383 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2022-11-03 01:55:37,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:55:37,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:55:37,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:55:37,492 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;@28dc64af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:55:37,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:55:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:55:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:55:37,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:37,518 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:37,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:37,526 INFO L85 PathProgramCache]: Analyzing trace with hash 442962897, now seen corresponding path program 1 times [2022-11-03 01:55:37,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:37,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802230954] [2022-11-03 01:55:37,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:37,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:55:37,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:37,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802230954] [2022-11-03 01:55:37,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802230954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:37,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:37,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:55:37,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064588731] [2022-11-03 01:55:37,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:37,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:55:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:55:37,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:55:37,819 INFO L87 Difference]: Start difference. First operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:55:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:37,893 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-03 01:55:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:55:37,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-03 01:55:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:37,907 INFO L225 Difference]: With dead ends: 148 [2022-11-03 01:55:37,907 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 01:55:37,911 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 01:55:37,915 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:37,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:55:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 01:55:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-03 01:55:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 51 states have internal predecessors, (55), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-03 01:55:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-03 01:55:37,962 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 21 [2022-11-03 01:55:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:37,964 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-03 01:55:37,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:55:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-03 01:55:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 01:55:37,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:37,972 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:37,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:55:37,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:37,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:37,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2021379213, now seen corresponding path program 1 times [2022-11-03 01:55:37,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:37,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529770420] [2022-11-03 01:55:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:37,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:55:38,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:38,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529770420] [2022-11-03 01:55:38,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529770420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:38,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:38,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:38,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887024224] [2022-11-03 01:55:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:38,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:38,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:38,129 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:55:38,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:38,204 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-11-03 01:55:38,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:38,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-03 01:55:38,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:38,207 INFO L225 Difference]: With dead ends: 117 [2022-11-03 01:55:38,207 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 01:55:38,208 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 01:55:38,209 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 7 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:38,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 119 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:55:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 01:55:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-03 01:55:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 46 states have internal predecessors, (49), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:55:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-03 01:55:38,220 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 22 [2022-11-03 01:55:38,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:38,221 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-03 01:55:38,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:55:38,221 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-03 01:55:38,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 01:55:38,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:38,222 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:38,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:55:38,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:38,223 INFO L85 PathProgramCache]: Analyzing trace with hash 495074929, now seen corresponding path program 1 times [2022-11-03 01:55:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:38,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632402077] [2022-11-03 01:55:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:38,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:55:38,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:38,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632402077] [2022-11-03 01:55:38,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632402077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:38,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:38,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:38,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795529376] [2022-11-03 01:55:38,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:38,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:38,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:38,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:38,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:38,394 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:55:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:38,614 INFO L93 Difference]: Finished difference Result 166 states and 218 transitions. [2022-11-03 01:55:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:55:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-03 01:55:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:38,620 INFO L225 Difference]: With dead ends: 166 [2022-11-03 01:55:38,620 INFO L226 Difference]: Without dead ends: 106 [2022-11-03 01:55:38,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:55:38,633 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 42 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:38,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 312 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:55:38,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-03 01:55:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-11-03 01:55:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 64 states have (on average 1.25) internal successors, (80), 72 states have internal predecessors, (80), 20 states have call successors, (20), 17 states have call predecessors, (20), 17 states have return successors, (26), 18 states have call predecessors, (26), 20 states have call successors, (26) [2022-11-03 01:55:38,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 126 transitions. [2022-11-03 01:55:38,666 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 126 transitions. Word has length 24 [2022-11-03 01:55:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:38,667 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 126 transitions. [2022-11-03 01:55:38,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:55:38,667 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 126 transitions. [2022-11-03 01:55:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 01:55:38,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:38,669 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:38,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:55:38,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:38,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:38,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1823229499, now seen corresponding path program 1 times [2022-11-03 01:55:38,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:38,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885039885] [2022-11-03 01:55:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:38,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:55:39,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885039885] [2022-11-03 01:55:39,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885039885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:39,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:39,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:55:39,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803493240] [2022-11-03 01:55:39,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:39,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:55:39,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:55:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:55:39,191 INFO L87 Difference]: Start difference. First operand 102 states and 126 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:55:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:39,465 INFO L93 Difference]: Finished difference Result 289 states and 357 transitions. [2022-11-03 01:55:39,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:55:39,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 41 [2022-11-03 01:55:39,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:39,467 INFO L225 Difference]: With dead ends: 289 [2022-11-03 01:55:39,468 INFO L226 Difference]: Without dead ends: 189 [2022-11-03 01:55:39,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:55:39,470 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 107 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:39,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 266 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:55:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-03 01:55:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2022-11-03 01:55:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 116 states have (on average 1.2241379310344827) internal successors, (142), 129 states have internal predecessors, (142), 36 states have call successors, (36), 31 states have call predecessors, (36), 32 states have return successors, (48), 33 states have call predecessors, (48), 36 states have call successors, (48) [2022-11-03 01:55:39,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 226 transitions. [2022-11-03 01:55:39,495 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 226 transitions. Word has length 41 [2022-11-03 01:55:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:39,496 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 226 transitions. [2022-11-03 01:55:39,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:55:39,496 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 226 transitions. [2022-11-03 01:55:39,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 01:55:39,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:39,498 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:39,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:55:39,499 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:39,499 INFO L85 PathProgramCache]: Analyzing trace with hash -203386622, now seen corresponding path program 1 times [2022-11-03 01:55:39,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:39,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598061567] [2022-11-03 01:55:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:39,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:55:39,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:39,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598061567] [2022-11-03 01:55:39,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598061567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:39,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:39,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:55:39,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338842535] [2022-11-03 01:55:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:39,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:55:39,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:39,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:55:39,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:55:39,843 INFO L87 Difference]: Start difference. First operand 185 states and 226 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 01:55:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:40,476 INFO L93 Difference]: Finished difference Result 435 states and 545 transitions. [2022-11-03 01:55:40,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 01:55:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-11-03 01:55:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:40,479 INFO L225 Difference]: With dead ends: 435 [2022-11-03 01:55:40,480 INFO L226 Difference]: Without dead ends: 305 [2022-11-03 01:55:40,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-03 01:55:40,481 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 236 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:40,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 270 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:55:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-11-03 01:55:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 275. [2022-11-03 01:55:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 177 states have (on average 1.231638418079096) internal successors, (218), 195 states have internal predecessors, (218), 51 states have call successors, (51), 39 states have call predecessors, (51), 46 states have return successors, (70), 52 states have call predecessors, (70), 51 states have call successors, (70) [2022-11-03 01:55:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 339 transitions. [2022-11-03 01:55:40,521 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 339 transitions. Word has length 44 [2022-11-03 01:55:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:40,521 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 339 transitions. [2022-11-03 01:55:40,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 01:55:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 339 transitions. [2022-11-03 01:55:40,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 01:55:40,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:40,524 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:40,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:55:40,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:40,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1805179232, now seen corresponding path program 1 times [2022-11-03 01:55:40,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:40,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123200165] [2022-11-03 01:55:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:40,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 01:55:40,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:40,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123200165] [2022-11-03 01:55:40,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123200165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:40,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:40,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:55:40,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942001716] [2022-11-03 01:55:40,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:40,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:55:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:40,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:55:40,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:55:40,744 INFO L87 Difference]: Start difference. First operand 275 states and 339 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 01:55:41,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:41,220 INFO L93 Difference]: Finished difference Result 561 states and 726 transitions. [2022-11-03 01:55:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 01:55:41,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2022-11-03 01:55:41,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:41,228 INFO L225 Difference]: With dead ends: 561 [2022-11-03 01:55:41,228 INFO L226 Difference]: Without dead ends: 412 [2022-11-03 01:55:41,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:55:41,233 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 123 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:41,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 433 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:55:41,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-03 01:55:41,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 379. [2022-11-03 01:55:41,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 244 states have (on average 1.2049180327868851) internal successors, (294), 272 states have internal predecessors, (294), 70 states have call successors, (70), 54 states have call predecessors, (70), 64 states have return successors, (103), 70 states have call predecessors, (103), 70 states have call successors, (103) [2022-11-03 01:55:41,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 467 transitions. [2022-11-03 01:55:41,329 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 467 transitions. Word has length 61 [2022-11-03 01:55:41,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:41,330 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 467 transitions. [2022-11-03 01:55:41,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 01:55:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 467 transitions. [2022-11-03 01:55:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 01:55:41,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:41,345 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:41,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:55:41,345 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:41,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:41,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1711071724, now seen corresponding path program 1 times [2022-11-03 01:55:41,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:41,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639469525] [2022-11-03 01:55:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:41,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:41,753 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:41,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:41,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639469525] [2022-11-03 01:55:41,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639469525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:41,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688098560] [2022-11-03 01:55:41,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:41,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:41,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:41,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:41,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:55:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:41,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 01:55:41,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:42,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:55:42,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688098560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:55:42,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [574215690] [2022-11-03 01:55:42,583 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-03 01:55:42,583 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:55:42,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:55:42,593 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:55:42,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:55:49,218 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-03 01:55:49,228 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-03 01:55:49,621 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 44 for LOIs [2022-11-03 01:55:49,627 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-03 01:55:49,674 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-03 01:55:49,767 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 28 for LOIs [2022-11-03 01:55:49,770 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:56:00,732 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4943#(and (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2)) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-03 01:56:00,732 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:56:00,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:56:00,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-11-03 01:56:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120895412] [2022-11-03 01:56:00,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:56:00,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:56:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:00,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:56:00,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1380, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 01:56:00,735 INFO L87 Difference]: Start difference. First operand 379 states and 467 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 01:56:01,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:01,382 INFO L93 Difference]: Finished difference Result 1310 states and 1701 transitions. [2022-11-03 01:56:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 01:56:01,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 78 [2022-11-03 01:56:01,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:01,391 INFO L225 Difference]: With dead ends: 1310 [2022-11-03 01:56:01,391 INFO L226 Difference]: Without dead ends: 921 [2022-11-03 01:56:01,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 188 SyntacticMatches, 15 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=221, Invalid=1759, Unknown=0, NotChecked=0, Total=1980 [2022-11-03 01:56:01,395 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 202 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:01,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 495 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:56:01,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-03 01:56:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 778. [2022-11-03 01:56:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 504 states have (on average 1.1984126984126984) internal successors, (604), 562 states have internal predecessors, (604), 140 states have call successors, (140), 118 states have call predecessors, (140), 133 states have return successors, (248), 138 states have call predecessors, (248), 140 states have call successors, (248) [2022-11-03 01:56:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 992 transitions. [2022-11-03 01:56:01,519 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 992 transitions. Word has length 78 [2022-11-03 01:56:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:01,520 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 992 transitions. [2022-11-03 01:56:01,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 01:56:01,520 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 992 transitions. [2022-11-03 01:56:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-03 01:56:01,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:56:01,524 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:01,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:01,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:56:01,725 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:56:01,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:56:01,726 INFO L85 PathProgramCache]: Analyzing trace with hash 681535356, now seen corresponding path program 1 times [2022-11-03 01:56:01,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:56:01,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170689106] [2022-11-03 01:56:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:56:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 44 proven. 14 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 01:56:02,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:56:02,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170689106] [2022-11-03 01:56:02,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170689106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:56:02,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053526645] [2022-11-03 01:56:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:56:02,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:56:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:56:02,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:56:02,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:56:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:56:02,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 01:56:02,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:56:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 66 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 01:56:03,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:56:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 53 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 01:56:03,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053526645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:56:03,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1731183960] [2022-11-03 01:56:03,759 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2022-11-03 01:56:03,759 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:56:03,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:56:03,760 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:56:03,760 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:56:08,387 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-03 01:56:08,396 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-03 01:56:08,733 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 41 for LOIs [2022-11-03 01:56:08,739 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-03 01:56:08,815 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-03 01:56:08,946 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 58 for LOIs [2022-11-03 01:56:08,965 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:56:16,602 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8879#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (<= 0 |old(~pumpRunning~0)|) (= ~head~0.offset 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2)) (= 1 ~systemActive~0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= |old(~pumpRunning~0)| 0) (<= 2 |old(~waterLevel~0)|) (<= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 01:56:16,602 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:56:16,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:56:16,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 25 [2022-11-03 01:56:16,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554565303] [2022-11-03 01:56:16,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:56:16,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 01:56:16,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:56:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 01:56:16,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=3164, Unknown=0, NotChecked=0, Total=3540 [2022-11-03 01:56:16,606 INFO L87 Difference]: Start difference. First operand 778 states and 992 transitions. Second operand has 25 states, 24 states have (on average 5.458333333333333) internal successors, (131), 25 states have internal predecessors, (131), 14 states have call successors, (32), 6 states have call predecessors, (32), 10 states have return successors, (32), 14 states have call predecessors, (32), 13 states have call successors, (32) [2022-11-03 01:56:19,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:56:19,875 INFO L93 Difference]: Finished difference Result 1684 states and 2168 transitions. [2022-11-03 01:56:19,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-03 01:56:19,876 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.458333333333333) internal successors, (131), 25 states have internal predecessors, (131), 14 states have call successors, (32), 6 states have call predecessors, (32), 10 states have return successors, (32), 14 states have call predecessors, (32), 13 states have call successors, (32) Word has length 110 [2022-11-03 01:56:19,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:56:19,877 INFO L225 Difference]: With dead ends: 1684 [2022-11-03 01:56:19,877 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:56:19,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 302 SyntacticMatches, 9 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4359 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1324, Invalid=10018, Unknown=0, NotChecked=0, Total=11342 [2022-11-03 01:56:19,889 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 829 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:56:19,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 611 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 01:56:19,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:56:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:56:19,891 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 01:56:19,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:56:19,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2022-11-03 01:56:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:56:19,892 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:56:19,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.458333333333333) internal successors, (131), 25 states have internal predecessors, (131), 14 states have call successors, (32), 6 states have call predecessors, (32), 10 states have return successors, (32), 14 states have call predecessors, (32), 13 states have call successors, (32) [2022-11-03 01:56:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:56:19,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:56:19,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:56:19,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:56:20,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 01:56:20,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 01:56:26,910 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 203 210) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,911 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 203 210) no Hoare annotation was computed. [2022-11-03 01:56:26,912 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 93 99) no Hoare annotation was computed. [2022-11-03 01:56:26,912 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 93 99) the Hoare annotation is: true [2022-11-03 01:56:26,912 INFO L895 garLoopResultBuilder]: At program point L141(line 141) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse1))) [2022-11-03 01:56:26,912 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,913 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 143) no Hoare annotation was computed. [2022-11-03 01:56:26,913 INFO L895 garLoopResultBuilder]: At program point L131(lines 131 148) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,913 INFO L895 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= ~switchedOnBeforeTS~0 0) .cse1) (or .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse1))) [2022-11-03 01:56:26,913 INFO L899 garLoopResultBuilder]: For program point L146-1(lines 127 151) no Hoare annotation was computed. [2022-11-03 01:56:26,913 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 127 151) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,913 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 127 151) no Hoare annotation was computed. [2022-11-03 01:56:26,913 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 222 230) no Hoare annotation was computed. [2022-11-03 01:56:26,913 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 222 230) the Hoare annotation is: true [2022-11-03 01:56:26,913 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 827 838) the Hoare annotation is: true [2022-11-03 01:56:26,914 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 827 838) no Hoare annotation was computed. [2022-11-03 01:56:26,914 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 905 934) no Hoare annotation was computed. [2022-11-03 01:56:26,914 INFO L899 garLoopResultBuilder]: For program point L926(line 926) no Hoare annotation was computed. [2022-11-03 01:56:26,914 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 905 934) the Hoare annotation is: true [2022-11-03 01:56:26,914 INFO L899 garLoopResultBuilder]: For program point L919(lines 919 923) no Hoare annotation was computed. [2022-11-03 01:56:26,915 INFO L902 garLoopResultBuilder]: At program point L919-1(lines 919 923) the Hoare annotation is: true [2022-11-03 01:56:26,915 INFO L902 garLoopResultBuilder]: At program point L915-2(lines 915 929) the Hoare annotation is: true [2022-11-03 01:56:26,916 INFO L902 garLoopResultBuilder]: At program point L911(line 911) the Hoare annotation is: true [2022-11-03 01:56:26,916 INFO L899 garLoopResultBuilder]: For program point L911-1(line 911) no Hoare annotation was computed. [2022-11-03 01:56:26,916 INFO L902 garLoopResultBuilder]: At program point L930(lines 905 934) the Hoare annotation is: true [2022-11-03 01:56:26,917 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse1 (and (not (= ~pumpRunning~0 0)) (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse2) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2))) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse0 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse0))) [2022-11-03 01:56:26,917 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-03 01:56:26,918 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse11 (let ((.cse12 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse12) .cse6) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse12)))) (.cse7 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| ~waterLevel~0)) (.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse4 (not .cse3)) (.cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse5 .cse11 .cse7)) (.cse2 (and (not .cse5) .cse11 .cse7 .cse8)) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 (and .cse5 .cse6 .cse7 .cse8)) (or .cse4 .cse9 .cse10) (or .cse1 .cse2 .cse9 .cse10))))) [2022-11-03 01:56:26,918 INFO L899 garLoopResultBuilder]: For program point L345-1(line 345) no Hoare annotation was computed. [2022-11-03 01:56:26,918 INFO L895 garLoopResultBuilder]: At program point L172(line 172) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= |old(~pumpRunning~0)| 0)) .cse1))) [2022-11-03 01:56:26,918 INFO L895 garLoopResultBuilder]: At program point L172-1(lines 153 177) the Hoare annotation is: (let ((.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse10 (<= ~waterLevel~0 2)) (.cse5 (let ((.cse11 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse11) .cse9) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse11)))) (.cse8 (= ~pumpRunning~0 0))) (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not .cse8)) (.cse7 (and (not (= ~switchedOnBeforeTS~0 0)) .cse8 .cse10 .cse5)) (.cse2 (and (<= 2 ~waterLevel~0) .cse10 .cse9)) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse4 .cse5 .cse6) .cse1 .cse7 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (and .cse4 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse6) .cse7 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse8 .cse9 .cse6)))))) [2022-11-03 01:56:26,919 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 69 91) no Hoare annotation was computed. [2022-11-03 01:56:26,919 INFO L895 garLoopResultBuilder]: At program point L330(line 330) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~switchedOnBeforeTS~0 0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse2 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (or .cse3 (= ~pumpRunning~0 0) .cse1) (or .cse4 .cse3 .cse1 .cse5) (or .cse6 .cse3 .cse0) (or .cse4 .cse2 .cse1 .cse5) (or .cse2 .cse6 .cse0))) [2022-11-03 01:56:26,919 INFO L895 garLoopResultBuilder]: At program point L330-1(line 330) the Hoare annotation is: (let ((.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret19#1|)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse1 .cse2) (or .cse3 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0 .cse1) .cse2))) [2022-11-03 01:56:26,919 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 169) no Hoare annotation was computed. [2022-11-03 01:56:26,919 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 174) no Hoare annotation was computed. [2022-11-03 01:56:26,920 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 357) no Hoare annotation was computed. [2022-11-03 01:56:26,920 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 360) no Hoare annotation was computed. [2022-11-03 01:56:26,920 INFO L895 garLoopResultBuilder]: At program point L343-1(lines 335 363) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse5 (not (= ~switchedOnBeforeTS~0 0))) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (<= 2 ~waterLevel~0) .cse0) .cse1 (and .cse2 .cse0 .cse3 .cse4)) (let ((.cse6 (or .cse0 (= ~waterLevel~0 1)))) (or (and .cse0 .cse3) (and .cse5 .cse2 .cse6 .cse3) .cse1 (and (not .cse2) .cse6 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|)))) (let ((.cse7 (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse8) .cse0) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse5 .cse2 .cse7 .cse3) (and .cse5 .cse7 .cse3 .cse4) .cse1 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-03 01:56:26,920 INFO L895 garLoopResultBuilder]: At program point L1008(line 1008) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0) (or (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-03 01:56:26,921 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 354) no Hoare annotation was computed. [2022-11-03 01:56:26,921 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 92) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~switchedOnBeforeTS~0 0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse2 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (or .cse3 (= ~pumpRunning~0 0) .cse1) (or .cse4 .cse3 .cse1 .cse5) (or .cse6 .cse3 .cse0) (or .cse4 .cse2 .cse1 .cse5) (or .cse2 .cse6 .cse0))) [2022-11-03 01:56:26,921 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 80 86) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not .cse1)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not (= ~switchedOnBeforeTS~0 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 .cse2)) (or .cse0 .cse3 .cse4) (or (and .cse5 .cse1 (= ~waterLevel~0 1)) .cse3 .cse4 (and .cse6 (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) .cse2) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse7 (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse8) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8))))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse6 .cse7 .cse2) (and .cse5 .cse1 .cse7) .cse4 (= |old(~switchedOnBeforeTS~0)| 0)))))) [2022-11-03 01:56:26,922 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 92) no Hoare annotation was computed. [2022-11-03 01:56:26,923 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1008) no Hoare annotation was computed. [2022-11-03 01:56:26,923 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse1 (and (not (= ~pumpRunning~0 0)) (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse2) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2))) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse0 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse1 .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse0))) [2022-11-03 01:56:26,923 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (< 0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or .cse0 (and .cse1 .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) (and .cse1 (<= ~waterLevel~0 0) (or (and .cse2 .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4)))) [2022-11-03 01:56:26,923 INFO L895 garLoopResultBuilder]: At program point L990(lines 990 997) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-03 01:56:26,924 INFO L895 garLoopResultBuilder]: At program point L416-2(lines 408 421) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse1 .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0))) [2022-11-03 01:56:26,924 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 01:56:26,924 INFO L902 garLoopResultBuilder]: At program point L990-2(lines 990 997) the Hoare annotation is: true [2022-11-03 01:56:26,924 INFO L899 garLoopResultBuilder]: For program point L379(lines 378 425) no Hoare annotation was computed. [2022-11-03 01:56:26,924 INFO L895 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse1 .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0))) [2022-11-03 01:56:26,924 INFO L902 garLoopResultBuilder]: At program point L429(lines 368 433) the Hoare annotation is: true [2022-11-03 01:56:26,925 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 394) no Hoare annotation was computed. [2022-11-03 01:56:26,925 INFO L899 garLoopResultBuilder]: For program point L388-1(lines 388 394) no Hoare annotation was computed. [2022-11-03 01:56:26,925 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 01:56:26,925 INFO L895 garLoopResultBuilder]: At program point L426(lines 377 427) the Hoare annotation is: false [2022-11-03 01:56:26,925 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 404) no Hoare annotation was computed. [2022-11-03 01:56:26,925 INFO L895 garLoopResultBuilder]: At program point L398-1(lines 398 404) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse1 .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0))) [2022-11-03 01:56:26,926 INFO L895 garLoopResultBuilder]: At program point L423(lines 378 425) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse1 .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0))) [2022-11-03 01:56:26,929 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse1 .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0))) [2022-11-03 01:56:26,929 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 101 125) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,930 INFO L895 garLoopResultBuilder]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse1))) [2022-11-03 01:56:26,930 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 101 125) no Hoare annotation was computed. [2022-11-03 01:56:26,931 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,931 INFO L895 garLoopResultBuilder]: At program point L191-1(line 191) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,931 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 101 125) no Hoare annotation was computed. [2022-11-03 01:56:26,932 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (and (or (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0 .cse1) (or .cse0 (= ~switchedOnBeforeTS~0 0) .cse1))) [2022-11-03 01:56:26,932 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 117) no Hoare annotation was computed. [2022-11-03 01:56:26,932 INFO L895 garLoopResultBuilder]: At program point L105(lines 105 122) the Hoare annotation is: (or (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:56:26,932 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 815 826) no Hoare annotation was computed. [2022-11-03 01:56:26,932 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 815 826) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~pumpRunning~0 0)) .cse1) (or .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1))) [2022-11-03 01:56:26,932 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 211 221) the Hoare annotation is: true [2022-11-03 01:56:26,933 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 211 221) no Hoare annotation was computed. [2022-11-03 01:56:26,936 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:56:26,938 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:56:26,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:56:26 BoogieIcfgContainer [2022-11-03 01:56:26,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:56:26,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:56:26,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:56:26,965 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:56:26,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:37" (3/4) ... [2022-11-03 01:56:26,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:56:26,973 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 01:56:26,973 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 01:56:26,973 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 01:56:26,974 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 01:56:26,974 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 01:56:26,974 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:56:26,974 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 01:56:26,974 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:56:26,975 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 01:56:26,975 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 01:56:26,982 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2022-11-03 01:56:26,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-03 01:56:26,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 01:56:26,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 01:56:26,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:56:26,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:56:26,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:56:27,010 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == aux-isPumpRunning()-aux) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) [2022-11-03 01:56:27,011 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && pumpRunning == switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 01:56:27,012 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((((\old(waterLevel) == waterLevel && tmp == waterLevel) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == waterLevel)) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == waterLevel)) || (((!(switchedOnBeforeTS == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 01:56:27,012 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1))) && (!(\old(waterLevel) <= 2) || !(2 <= \old(waterLevel))) [2022-11-03 01:56:27,012 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || ((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 2) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(waterLevel) <= 2) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 2) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || ((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) [2022-11-03 01:56:27,013 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel <= 2) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-03 01:56:27,013 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel <= 2) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-03 01:56:27,014 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 2 <= waterLevel) && pumpRunning == switchedOnBeforeTS) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-03 01:56:27,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:56:27,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:56:27,040 INFO L158 Benchmark]: Toolchain (without parser) took 51018.40ms. Allocated memory was 102.8MB in the beginning and 520.1MB in the end (delta: 417.3MB). Free memory was 66.8MB in the beginning and 305.0MB in the end (delta: -238.2MB). Peak memory consumption was 177.7MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,040 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:56:27,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.75ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 68.7MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.41ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 66.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,041 INFO L158 Benchmark]: Boogie Preprocessor took 30.26ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,041 INFO L158 Benchmark]: RCFGBuilder took 790.07ms. Allocated memory is still 102.8MB. Free memory was 64.2MB in the beginning and 68.5MB in the end (delta: -4.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,042 INFO L158 Benchmark]: TraceAbstraction took 49587.59ms. Allocated memory was 102.8MB in the beginning and 520.1MB in the end (delta: 417.3MB). Free memory was 67.3MB in the beginning and 311.3MB in the end (delta: -243.9MB). Peak memory consumption was 307.5MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,042 INFO L158 Benchmark]: Witness Printer took 74.91ms. Allocated memory is still 520.1MB. Free memory was 311.3MB in the beginning and 305.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 01:56:27,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.75ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 68.7MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.41ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 66.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.26ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 790.07ms. Allocated memory is still 102.8MB. Free memory was 64.2MB in the beginning and 68.5MB in the end (delta: -4.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 49587.59ms. Allocated memory was 102.8MB in the beginning and 520.1MB in the end (delta: 417.3MB). Free memory was 67.3MB in the beginning and 311.3MB in the end (delta: -243.9MB). Peak memory consumption was 307.5MB. Max. memory is 16.1GB. * Witness Printer took 74.91ms. Allocated memory is still 520.1MB. Free memory was 311.3MB in the beginning and 305.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1008]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.5s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1571 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1546 mSDsluCounter, 2584 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2222 mSDsCounter, 966 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3509 IncrementalHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 966 mSolverCounterUnsat, 759 mSDtfsCounter, 3509 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 726 GetRequests, 511 SyntacticMatches, 24 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5220 ImplicationChecksByTransitivity, 21.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=778occurred in iteration=7, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 214 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 1686 PreInvPairs, 2101 NumberOfFragments, 1634 HoareAnnotationTreeSize, 1686 FomulaSimplifications, 4325 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 44 FomulaSimplificationsInter, 34599 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 589 NumberOfCodeBlocks, 589 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 765 ConstructedInterpolants, 0 QuantifiedInterpolants, 2468 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1096 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 367/404 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: (((((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == aux-isPumpRunning()-aux) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) || ((waterLevel <= 1 && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: (!(waterLevel <= 2) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 990]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1008]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1))) && (!(\old(waterLevel) <= 2) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 915]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && pumpRunning == switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel == 1) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 990]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 2 <= waterLevel) && pumpRunning == switchedOnBeforeTS) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (!(waterLevel <= 2) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((((\old(waterLevel) == waterLevel && tmp == waterLevel) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == waterLevel)) || !(\old(waterLevel) <= 2)) || (((!(pumpRunning == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == waterLevel)) || (((!(switchedOnBeforeTS == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) || ((waterLevel <= 1 && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0) - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || ((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 2) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(waterLevel) <= 2) || (((!(pumpRunning == 0) && waterLevel <= 1) && 1 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 2) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || ((2 <= waterLevel && waterLevel <= 2) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) RESULT: Ultimate proved your program to be correct! [2022-11-03 01:56:27,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1dd6b8-efe3-4a02-a206-1429ecb4028e/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