./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.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_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/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_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/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_9db6d5d4-03bd-4dc4-b11f-af92503a695f/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 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:08:32,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:08:32,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:08:33,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:08:33,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:08:33,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:08:33,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:08:33,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:08:33,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:08:33,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:08:33,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:08:33,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:08:33,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:08:33,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:08:33,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:08:33,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:08:33,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:08:33,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:08:33,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:08:33,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:08:33,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:08:33,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:08:33,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:08:33,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:08:33,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:08:33,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:08:33,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:08:33,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:08:33,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:08:33,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:08:33,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:08:33,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:08:33,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:08:33,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:08:33,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:08:33,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:08:33,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:08:33,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:08:33,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:08:33,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:08:33,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:08:33,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:08:33,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:08:33,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:08:33,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:08:33,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:08:33,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:08:33,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:08:33,114 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:08:33,114 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:08:33,115 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:08:33,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:08:33,116 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:08:33,116 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:08:33,116 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:08:33,116 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:08:33,117 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:08:33,117 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:08:33,117 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:08:33,117 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:08:33,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:08:33,118 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:08:33,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:08:33,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:08:33,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:08:33,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:08:33,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:08:33,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:08:33,119 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:08:33,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:08:33,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:08:33,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:08:33,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:08:33,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:08:33,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:08:33,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:08:33,122 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:08:33,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:08:33,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:08:33,122 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:08:33,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:08:33,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:08:33,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:08:33,123 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_9db6d5d4-03bd-4dc4-b11f-af92503a695f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2022-11-03 02:08:33,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:08:33,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:08:33,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:08:33,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:08:33,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:08:33,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-03 02:08:33,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/data/91651367e/bd53c58df46743b690dcfa238b48d28e/FLAGeba3ec447 [2022-11-03 02:08:34,093 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:08:34,094 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-03 02:08:34,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/data/91651367e/bd53c58df46743b690dcfa238b48d28e/FLAGeba3ec447 [2022-11-03 02:08:34,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/data/91651367e/bd53c58df46743b690dcfa238b48d28e [2022-11-03 02:08:34,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:08:34,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:08:34,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:08:34,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:08:34,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:08:34,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:34,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5018df69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34, skipping insertion in model container [2022-11-03 02:08:34,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:34,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:08:34,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:08:34,712 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_9db6d5d4-03bd-4dc4-b11f-af92503a695f/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-03 02:08:34,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:08:34,806 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:08:34,828 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_9db6d5d4-03bd-4dc4-b11f-af92503a695f/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-03 02:08:34,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:08:34,953 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:08:34,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34 WrapperNode [2022-11-03 02:08:34,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:08:34,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:08:34,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:08:34,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:08:34,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:34,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,033 INFO L138 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 254 [2022-11-03 02:08:35,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:08:35,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:08:35,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:08:35,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:08:35,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:08:35,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:08:35,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:08:35,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:08:35,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (1/1) ... [2022-11-03 02:08:35,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:08:35,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:08:35,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:08:35,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:08:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:08:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:08:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:08:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:08:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:08:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:08:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:08:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:08:35,201 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:08:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 02:08:35,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 02:08:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:08:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:08:35,202 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:08:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:08:35,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:08:35,314 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:08:35,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:08:35,631 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:08:35,939 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:08:35,939 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:08:35,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:35 BoogieIcfgContainer [2022-11-03 02:08:35,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:08:35,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:08:35,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:08:35,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:08:35,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:08:34" (1/3) ... [2022-11-03 02:08:35,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b70646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:35, skipping insertion in model container [2022-11-03 02:08:35,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:34" (2/3) ... [2022-11-03 02:08:35,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b70646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:35, skipping insertion in model container [2022-11-03 02:08:35,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:35" (3/3) ... [2022-11-03 02:08:35,952 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2022-11-03 02:08:35,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:08:35,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:08:36,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:08:36,066 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;@a4a8845, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:08:36,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:08:36,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 02:08:36,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:08:36,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:36,081 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:36,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:36,086 INFO L85 PathProgramCache]: Analyzing trace with hash -388126214, now seen corresponding path program 1 times [2022-11-03 02:08:36,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:36,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583548212] [2022-11-03 02:08:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:36,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:08:36,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:36,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583548212] [2022-11-03 02:08:36,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583548212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:36,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:36,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:08:36,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918229411] [2022-11-03 02:08:36,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:36,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:08:36,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:36,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:08:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:08:36,401 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:08:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:36,510 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-03 02:08:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:08:36,512 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-03 02:08:36,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:36,520 INFO L225 Difference]: With dead ends: 100 [2022-11-03 02:08:36,520 INFO L226 Difference]: Without dead ends: 46 [2022-11-03 02:08:36,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:08:36,527 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:36,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:08:36,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-03 02:08:36,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-03 02:08:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-03 02:08:36,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-03 02:08:36,568 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-03 02:08:36,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:36,569 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-03 02:08:36,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:08:36,569 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-03 02:08:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:08:36,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:36,571 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 02:08:36,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:08:36,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:36,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:36,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1059750746, now seen corresponding path program 1 times [2022-11-03 02:08:36,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:36,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343325217] [2022-11-03 02:08:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:36,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:08:36,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:36,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343325217] [2022-11-03 02:08:36,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343325217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:36,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:36,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:08:36,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429018505] [2022-11-03 02:08:36,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:36,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:08:36,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:08:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:08:36,874 INFO L87 Difference]: Start difference. First operand 46 states and 58 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 02:08:37,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:37,135 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2022-11-03 02:08:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:08:37,136 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 02:08:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:37,138 INFO L225 Difference]: With dead ends: 132 [2022-11-03 02:08:37,139 INFO L226 Difference]: Without dead ends: 88 [2022-11-03 02:08:37,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:08:37,141 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 37 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:37,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 281 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:08:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-03 02:08:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2022-11-03 02:08:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2022-11-03 02:08:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-11-03 02:08:37,180 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 24 [2022-11-03 02:08:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:37,181 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-11-03 02:08:37,182 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 02:08:37,182 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-11-03 02:08:37,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:08:37,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:37,184 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:37,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:08:37,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash 55843609, now seen corresponding path program 1 times [2022-11-03 02:08:37,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:37,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932502705] [2022-11-03 02:08:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:37,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:08:37,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932502705] [2022-11-03 02:08:37,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932502705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:37,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:37,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:08:37,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962532084] [2022-11-03 02:08:37,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:37,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:08:37,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:08:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:37,288 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:08:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:37,330 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2022-11-03 02:08:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:08:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 25 [2022-11-03 02:08:37,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:37,331 INFO L225 Difference]: With dead ends: 124 [2022-11-03 02:08:37,331 INFO L226 Difference]: Without dead ends: 68 [2022-11-03 02:08:37,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:08:37,334 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:37,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:08:37,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-03 02:08:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-03 02:08:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 51 states have internal predecessors, (57), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-11-03 02:08:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2022-11-03 02:08:37,345 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 25 [2022-11-03 02:08:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:37,345 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2022-11-03 02:08:37,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:08:37,345 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2022-11-03 02:08:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:08:37,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:37,346 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] [2022-11-03 02:08:37,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:08:37,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:37,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:37,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2078951607, now seen corresponding path program 1 times [2022-11-03 02:08:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:37,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606757905] [2022-11-03 02:08:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:37,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:08:37,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:37,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606757905] [2022-11-03 02:08:37,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606757905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:37,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:37,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:08:37,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187192019] [2022-11-03 02:08:37,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:37,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:08:37,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:08:37,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:08:37,760 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 02:08:37,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:37,894 INFO L93 Difference]: Finished difference Result 179 states and 221 transitions. [2022-11-03 02:08:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:08:37,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-03 02:08:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:37,902 INFO L225 Difference]: With dead ends: 179 [2022-11-03 02:08:37,902 INFO L226 Difference]: Without dead ends: 113 [2022-11-03 02:08:37,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:08:37,909 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 48 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:37,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 178 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:08:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-03 02:08:37,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2022-11-03 02:08:37,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 78 states have internal predecessors, (87), 18 states have call successors, (18), 14 states have call predecessors, (18), 15 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2022-11-03 02:08:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-11-03 02:08:37,947 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 27 [2022-11-03 02:08:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:37,947 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-11-03 02:08:37,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 02:08:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2022-11-03 02:08:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 02:08:37,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:37,952 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] [2022-11-03 02:08:37,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:08:37,953 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:37,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2067722784, now seen corresponding path program 1 times [2022-11-03 02:08:37,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:37,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616735834] [2022-11-03 02:08:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:08:38,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:38,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616735834] [2022-11-03 02:08:38,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616735834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:38,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:38,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:08:38,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717768692] [2022-11-03 02:08:38,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:38,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:08:38,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:38,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:08:38,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:08:38,362 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 02:08:38,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:38,808 INFO L93 Difference]: Finished difference Result 272 states and 335 transitions. [2022-11-03 02:08:38,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:08:38,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-03 02:08:38,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:38,815 INFO L225 Difference]: With dead ends: 272 [2022-11-03 02:08:38,815 INFO L226 Difference]: Without dead ends: 199 [2022-11-03 02:08:38,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:08:38,826 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 175 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:38,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 206 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:08:38,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-03 02:08:38,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 178. [2022-11-03 02:08:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 120 states have (on average 1.25) internal successors, (150), 135 states have internal predecessors, (150), 31 states have call successors, (31), 23 states have call predecessors, (31), 26 states have return successors, (36), 31 states have call predecessors, (36), 31 states have call successors, (36) [2022-11-03 02:08:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2022-11-03 02:08:38,877 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 30 [2022-11-03 02:08:38,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:38,878 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2022-11-03 02:08:38,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 02:08:38,878 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2022-11-03 02:08:38,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:08:38,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:38,886 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] [2022-11-03 02:08:38,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:08:38,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash 401342611, now seen corresponding path program 1 times [2022-11-03 02:08:38,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:38,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903487564] [2022-11-03 02:08:38,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:39,053 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 02:08:39,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:39,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903487564] [2022-11-03 02:08:39,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903487564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:08:39,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:08:39,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:08:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685692341] [2022-11-03 02:08:39,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:08:39,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:08:39,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:39,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:08:39,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:08:39,057 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:08:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:39,522 INFO L93 Difference]: Finished difference Result 391 states and 501 transitions. [2022-11-03 02:08:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:08:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2022-11-03 02:08:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:39,525 INFO L225 Difference]: With dead ends: 391 [2022-11-03 02:08:39,525 INFO L226 Difference]: Without dead ends: 270 [2022-11-03 02:08:39,526 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 02:08:39,527 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:39,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 320 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:08:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-03 02:08:39,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 239. [2022-11-03 02:08:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 159 states have (on average 1.2264150943396226) internal successors, (195), 181 states have internal predecessors, (195), 42 states have call successors, (42), 33 states have call predecessors, (42), 37 states have return successors, (58), 38 states have call predecessors, (58), 42 states have call successors, (58) [2022-11-03 02:08:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 295 transitions. [2022-11-03 02:08:39,566 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 295 transitions. Word has length 47 [2022-11-03 02:08:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:39,566 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 295 transitions. [2022-11-03 02:08:39,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:08:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 295 transitions. [2022-11-03 02:08:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-03 02:08:39,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:08:39,568 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:39,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:08:39,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:08:39,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:08:39,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1600060560, now seen corresponding path program 1 times [2022-11-03 02:08:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:08:39,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174358976] [2022-11-03 02:08:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:39,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:08:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:08:39,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:08:39,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174358976] [2022-11-03 02:08:39,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174358976] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:08:39,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087297615] [2022-11-03 02:08:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:08:39,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:08:39,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:08:39,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:08:39,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:08:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:08:39,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 02:08:39,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:08:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:08:40,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:08:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:08:40,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087297615] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:08:40,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [439433297] [2022-11-03 02:08:40,253 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-03 02:08:40,253 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:08:40,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:08:40,261 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:08:40,268 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:08:45,313 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 52 for LOIs [2022-11-03 02:08:45,324 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 52 for LOIs [2022-11-03 02:08:45,837 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 45 for LOIs [2022-11-03 02:08:45,844 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:08:54,920 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3466#(and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= |timeShift_isMethaneLevelCritical_~retValue_acc~6#1| 0) (<= 1 |timeShift_isHighWaterLevel_~tmp___0~2#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_#res#1|) (<= ~pumpRunning~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (<= |timeShift_getWaterLevel_~retValue_acc~7#1| 2147483647) (<= 0 |timeShift_activatePump_~tmp~7#1|) (= ~methaneLevelCritical~0 0) (<= |timeShift_isHighWaterLevel_~tmp~8#1| 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~11#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_~retValue_acc~6#1|) (= ~head~0.offset 0) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= |timeShift_isHighWaterLevel_~tmp___0~2#1| 1) (<= 0 |timeShift_isHighWaterLevel_~tmp~8#1|) (<= 2 ~waterLevel~0) (<= |timeShift_isMethaneLevelCritical_#res#1| 0) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= 0 |timeShift_isMethaneAlarm_~retValue_acc~9#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~8#1|) (<= |timeShift_isMethaneAlarm_#res#1| 0) (<= 2 |timeShift_getWaterLevel_~retValue_acc~7#1|) (<= 2 |old(~waterLevel~0)|) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~8#1| 0) (<= ~waterLevel~0 2147483647) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~11#1|) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (<= 0 |timeShift_isMethaneAlarm_#res#1|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (<= |timeShift_processEnvironment_~tmp~6#1| 1) (<= |timeShift_isMethaneAlarm_~retValue_acc~9#1| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_activatePump_~tmp~7#1| 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-03 02:08:54,921 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:08:54,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:08:54,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-11-03 02:08:54,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614386508] [2022-11-03 02:08:54,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:08:54,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:08:54,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:08:54,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:08:54,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2022-11-03 02:08:54,923 INFO L87 Difference]: Start difference. First operand 239 states and 295 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:08:55,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:08:55,348 INFO L93 Difference]: Finished difference Result 657 states and 837 transitions. [2022-11-03 02:08:55,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:08:55,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 50 [2022-11-03 02:08:55,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:08:55,350 INFO L225 Difference]: With dead ends: 657 [2022-11-03 02:08:55,350 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:08:55,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2022-11-03 02:08:55,354 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 110 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:08:55,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 301 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:08:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:08:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:08:55,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:08:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:08:55,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2022-11-03 02:08:55,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:08:55,359 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:08:55,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 02:08:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:08:55,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:08:55,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:08:55,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:08:55,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:08:55,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:08:58,856 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 815 821) no Hoare annotation was computed. [2022-11-03 02:08:58,856 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 815 821) the Hoare annotation is: true [2022-11-03 02:08:58,856 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 647 658) the Hoare annotation is: true [2022-11-03 02:08:58,857 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2022-11-03 02:08:58,857 INFO L899 garLoopResultBuilder]: For program point L795-2(lines 791 813) no Hoare annotation was computed. [2022-11-03 02:08:58,857 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-03 02:08:58,858 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1))) (.cse2 (<= |timeShift_processEnvironment_~tmp~6#1| 0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~switchedOnBeforeTS~0)| 0)) (or (and .cse0 .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-03 02:08:58,858 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= ~waterLevel~0 1)) (.cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse4 .cse3) (= |old(~switchedOnBeforeTS~0)| 0)) (or (and .cse4 (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) .cse3) (not (= |old(~waterLevel~0)| 2)) (and .cse1 (= 2 ~waterLevel~0) .cse3)))) [2022-11-03 02:08:58,858 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-03 02:08:58,858 INFO L895 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (not .cse0))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (and .cse1 .cse2)) (or (and .cse1 (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse2) (not (= |old(~waterLevel~0)| 2))) (or .cse3 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2))) (or .cse3 (not (= |old(~waterLevel~0)| 1)))))) [2022-11-03 02:08:58,859 INFO L895 garLoopResultBuilder]: At program point L842-1(lines 823 847) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~switchedOnBeforeTS~0 0))) (.cse0 (= ~waterLevel~0 1)) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (and (= ~pumpRunning~0 0) (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) .cse0 .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (not (< 1 |old(~waterLevel~0)|)) .cse3 (not (<= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and .cse4 .cse1) (= |old(~switchedOnBeforeTS~0)| 0)) (or (and .cse4 .cse0 .cse1) (not (= |old(~waterLevel~0)| 2)) .cse3))) [2022-11-03 02:08:58,859 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0) (not (= |old(~waterLevel~0)| 2)) (or (not .cse0) (not (= |old(~waterLevel~0)| 1))))) [2022-11-03 02:08:58,859 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (not .cse1)) (.cse8 (= ~pumpRunning~0 0)) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (and .cse1 .cse2) (and (or .cse3 .cse4) .cse5)) (or .cse6 .cse7 (and .cse8 .cse4)) (or .cse0 .cse7 .cse5) (or .cse6 .cse8 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2))) (or .cse2 .cse3)))) [2022-11-03 02:08:58,860 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3)) (or .cse4 (and (= 2 ~waterLevel~0) .cse3)) (or .cse5 .cse4 .cse6) (or .cse0 .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2))) (or .cse5 (and (not (= ~switchedOnBeforeTS~0 0)) (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) .cse6 .cse3) (= |old(~switchedOnBeforeTS~0)| 0)))) [2022-11-03 02:08:58,860 INFO L895 garLoopResultBuilder]: At program point L802-1(lines 802 808) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~waterLevel~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and (not .cse0) .cse1 .cse2) (not (= |old(~waterLevel~0)| 2)) .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2)) (or .cse4 (not (< 1 |old(~waterLevel~0)|)) .cse3 (not (<= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)))) [2022-11-03 02:08:58,861 INFO L895 garLoopResultBuilder]: At program point L831(lines 831 839) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and .cse0 (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse1) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1))) (or (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~switchedOnBeforeTS~0)| 0)))) [2022-11-03 02:08:58,861 INFO L895 garLoopResultBuilder]: At program point L827(lines 827 844) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~waterLevel~0 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3)) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= |old(~waterLevel~0)| 2))) (or (and (or (and (not .cse1) .cse2) (and .cse1 (= 2 ~waterLevel~0))) .cse3) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (not (= ~switchedOnBeforeTS~0 0)) .cse3) (= |old(~switchedOnBeforeTS~0)| 0)))) [2022-11-03 02:08:58,861 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2022-11-03 02:08:58,861 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2022-11-03 02:08:58,862 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 788 814) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (not .cse1)) (.cse8 (= ~pumpRunning~0 0)) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (and .cse1 .cse2) (and (or .cse3 .cse4) .cse5)) (or .cse6 .cse7 (and .cse8 .cse4)) (or .cse0 .cse7 .cse5) (or .cse6 .cse8 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2))) (or .cse2 .cse3)))) [2022-11-03 02:08:58,862 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (.cse0 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~waterLevel~0 1)) (.cse2 (and (not (= ~switchedOnBeforeTS~0 0)) .cse6))) (and (or .cse0 (and (= 2 ~waterLevel~0) .cse1) .cse2) (or .cse3 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) (and .cse4 .cse1)) (or .cse0 .cse4 .cse5) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse5 .cse6)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-03 02:08:58,862 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 814) no Hoare annotation was computed. [2022-11-03 02:08:58,863 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2022-11-03 02:08:58,863 INFO L902 garLoopResultBuilder]: At program point L129(lines 104 133) the Hoare annotation is: true [2022-11-03 02:08:58,863 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 104 133) no Hoare annotation was computed. [2022-11-03 02:08:58,863 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-03 02:08:58,863 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 104 133) the Hoare annotation is: true [2022-11-03 02:08:58,863 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2022-11-03 02:08:58,863 INFO L902 garLoopResultBuilder]: At program point L118-1(lines 118 122) the Hoare annotation is: true [2022-11-03 02:08:58,864 INFO L902 garLoopResultBuilder]: At program point L114-2(lines 114 128) the Hoare annotation is: true [2022-11-03 02:08:58,864 INFO L902 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: true [2022-11-03 02:08:58,864 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2022-11-03 02:08:58,864 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2022-11-03 02:08:58,864 INFO L895 garLoopResultBuilder]: At program point L746-1(lines 746 752) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (= ~waterLevel~0 1)) (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 02:08:58,865 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (= ~waterLevel~0 1)) (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 02:08:58,865 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (= ~waterLevel~0 1)) (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 02:08:58,865 INFO L895 garLoopResultBuilder]: At program point L193(lines 193 200) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-03 02:08:58,865 INFO L902 garLoopResultBuilder]: At program point L193-2(lines 193 200) the Hoare annotation is: true [2022-11-03 02:08:58,865 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:08:58,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:08:58,866 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (= ~waterLevel~0 1)) (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 02:08:58,866 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2022-11-03 02:08:58,866 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (= ~waterLevel~0 1)) (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2022-11-03 02:08:58,866 INFO L902 garLoopResultBuilder]: At program point L777(lines 716 781) the Hoare annotation is: true [2022-11-03 02:08:58,867 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-11-03 02:08:58,867 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-11-03 02:08:58,867 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: false [2022-11-03 02:08:58,867 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2022-11-03 02:08:58,867 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 635 646) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= ~waterLevel~0 1))) (and (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0) (or (not (= |old(~waterLevel~0)| 2)) .cse1) (or (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1 .cse0 (= ~switchedOnBeforeTS~0 0)))) [2022-11-03 02:08:58,868 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 893 901) no Hoare annotation was computed. [2022-11-03 02:08:58,868 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 893 901) the Hoare annotation is: true [2022-11-03 02:08:58,871 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:08:58,873 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:08:58,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:08:58 BoogieIcfgContainer [2022-11-03 02:08:58,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:08:58,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:08:58,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:08:58,895 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:08:58,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:35" (3/4) ... [2022-11-03 02:08:58,899 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:08:58,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:08:58,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:08:58,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:08:58,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:08:58,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:08:58,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 02:08:58,912 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2022-11-03 02:08:58,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-03 02:08:58,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 02:08:58,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:08:58,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:08:58,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:08:58,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:08:58,940 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel == 1) && aux-isPumpRunning()-aux == pumpRunning)) && (!(\old(waterLevel) == 2) || (2 == waterLevel && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((!(switchedOnBeforeTS == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && aux-isPumpRunning()-aux == pumpRunning)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 02:08:58,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 02:08:58,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) == 2) || (2 == waterLevel && tmp == 2)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 02:08:58,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((((!(pumpRunning == 0) && waterLevel == 1) || (pumpRunning == 0 && 2 == waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 02:08:58,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) && !(\old(waterLevel) == 2)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-11-03 02:08:58,942 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && ((((!(switchedOnBeforeTS == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) [2022-11-03 02:08:58,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(switchedOnBeforeTS) == 0) [2022-11-03 02:08:58,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:08:58,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:08:58,966 INFO L158 Benchmark]: Toolchain (without parser) took 24549.19ms. Allocated memory was 125.8MB in the beginning and 323.0MB in the end (delta: 197.1MB). Free memory was 90.5MB in the beginning and 117.4MB in the end (delta: -26.9MB). Peak memory consumption was 168.7MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,966 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 107.7MB in the beginning and 107.6MB in the end (delta: 142.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:08:58,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.80ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 94.3MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.61ms. Allocated memory is still 125.8MB. Free memory was 94.3MB in the beginning and 91.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,967 INFO L158 Benchmark]: Boogie Preprocessor took 58.75ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 89.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,967 INFO L158 Benchmark]: RCFGBuilder took 848.41ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 56.1MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,968 INFO L158 Benchmark]: TraceAbstraction took 22949.26ms. Allocated memory was 125.8MB in the beginning and 323.0MB in the end (delta: 197.1MB). Free memory was 55.5MB in the beginning and 122.6MB in the end (delta: -67.2MB). Peak memory consumption was 150.5MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,968 INFO L158 Benchmark]: Witness Printer took 70.19ms. Allocated memory is still 323.0MB. Free memory was 122.6MB in the beginning and 117.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:08:58,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 107.7MB in the beginning and 107.6MB in the end (delta: 142.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.80ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 94.3MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.61ms. Allocated memory is still 125.8MB. Free memory was 94.3MB in the beginning and 91.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.75ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 89.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 848.41ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 56.1MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22949.26ms. Allocated memory was 125.8MB in the beginning and 323.0MB in the end (delta: 197.1MB). Free memory was 55.5MB in the beginning and 122.6MB in the end (delta: -67.2MB). Peak memory consumption was 150.5MB. Max. memory is 16.1GB. * Witness Printer took 70.19ms. Allocated memory is still 323.0MB. Free memory was 122.6MB in the beginning and 117.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.8s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 472 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 459 mSDsluCounter, 1396 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1215 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1062 IncrementalHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 425 mSDtfsCounter, 1062 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=6, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 65 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 669 PreInvPairs, 912 NumberOfFragments, 1056 HoareAnnotationTreeSize, 669 FomulaSimplifications, 3264 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 31 FomulaSimplificationsInter, 13286 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 745 SizeOfPredicates, 9 NumberOfNonLiveVariables, 446 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 92/95 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) && !(\old(waterLevel) == 2)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) == 2) || (2 == waterLevel && tmp == 2)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && tmp == waterLevel) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 823]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && ((((!(switchedOnBeforeTS == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && 0 < tmp + 1) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((((!(pumpRunning == 0) && waterLevel == 1) || (pumpRunning == 0 && 2 == waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel == 1) && aux-isPumpRunning()-aux == pumpRunning)) && (!(\old(waterLevel) == 2) || (2 == waterLevel && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((!(switchedOnBeforeTS == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && aux-isPumpRunning()-aux == pumpRunning)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: ((((((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 < \old(waterLevel))) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || (2 == waterLevel && splverifierCounter == 0)) || ((!(switchedOnBeforeTS == 0) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || (2 == waterLevel && splverifierCounter == 0)) || ((!(switchedOnBeforeTS == 0) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 02:08:59,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9db6d5d4-03bd-4dc4-b11f-af92503a695f/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