./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS --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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- 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-8393723 [2022-11-19 08:31:42,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:31:42,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:31:42,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:31:42,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:31:42,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:31:42,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:31:42,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:31:42,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:31:42,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:31:42,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:31:42,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:31:42,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:31:42,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:31:42,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:31:42,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:31:42,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:31:42,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:31:42,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:31:42,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:31:42,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:31:42,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:31:42,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:31:42,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:31:42,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:31:42,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:31:42,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:31:42,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:31:42,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:31:42,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:31:42,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:31:42,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:31:42,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:31:42,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:31:42,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:31:42,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:31:42,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:31:42,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:31:42,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:31:42,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:31:42,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:31:42,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:31:42,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:31:42,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:31:42,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:31:42,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:31:42,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:31:42,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:31:42,203 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:31:42,203 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:31:42,204 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:31:42,204 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:31:42,204 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:31:42,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:31:42,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:31:42,205 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:31:42,206 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:31:42,206 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:31:42,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:31:42,207 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:31:42,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:31:42,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:31:42,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:31:42,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:31:42,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:31:42,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:31:42,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:31:42,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:31:42,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:31:42,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:31:42,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:31:42,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:31:42,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:31:42,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:31:42,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:42,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:31:42,212 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:31:42,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:31:42,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:31:42,213 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:31:42,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:31:42,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:31:42,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:31:42,214 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_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2022-11-19 08:31:42,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:31:42,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:31:42,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:31:42,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:31:42,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:31:42,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-11-19 08:31:42,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/data/174326f21/dbbbfeeae81e41aeabb2883d9316f9f2/FLAGdddc3a489 [2022-11-19 08:31:43,359 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:31:43,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-11-19 08:31:43,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/data/174326f21/dbbbfeeae81e41aeabb2883d9316f9f2/FLAGdddc3a489 [2022-11-19 08:31:43,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/data/174326f21/dbbbfeeae81e41aeabb2883d9316f9f2 [2022-11-19 08:31:43,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:31:43,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:31:43,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:43,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:31:43,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:31:43,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:43" (1/1) ... [2022-11-19 08:31:43,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678e6f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:43, skipping insertion in model container [2022-11-19 08:31:43,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:43" (1/1) ... [2022-11-19 08:31:43,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:31:43,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:31:43,805 WARN L234 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_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-11-19 08:31:43,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:43,889 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:31:43,941 WARN L234 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_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-11-19 08:31:43,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:44,024 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:31:44,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44 WrapperNode [2022-11-19 08:31:44,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:44,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:44,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:31:44,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:31:44,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,093 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 194 [2022-11-19 08:31:44,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:44,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:31:44,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:31:44,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:31:44,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:31:44,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:31:44,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:31:44,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:31:44,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (1/1) ... [2022-11-19 08:31:44,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:44,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:31:44,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:31:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:31:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 08:31:44,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 08:31:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 08:31:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 08:31:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 08:31:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 08:31:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 08:31:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 08:31:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 08:31:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 08:31:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 08:31:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 08:31:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-19 08:31:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-19 08:31:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:31:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 08:31:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 08:31:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:31:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:31:44,417 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:31:44,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:31:44,839 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:44,990 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:44,990 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:31:45,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:45 BoogieIcfgContainer [2022-11-19 08:31:45,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:45,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:45,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:45,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:45,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:31:43" (1/3) ... [2022-11-19 08:31:45,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183ff720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:45, skipping insertion in model container [2022-11-19 08:31:45,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:44" (2/3) ... [2022-11-19 08:31:45,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183ff720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:45, skipping insertion in model container [2022-11-19 08:31:45,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:45" (3/3) ... [2022-11-19 08:31:45,024 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2022-11-19 08:31:45,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:45,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:31:45,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:45,155 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;@2c1e7e3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:45,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:31:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 08:31:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:31:45,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:45,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:45,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:45,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1548548902, now seen corresponding path program 1 times [2022-11-19 08:31:45,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:45,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5557435] [2022-11-19 08:31:45,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:45,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:45,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:45,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5557435] [2022-11-19 08:31:45,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5557435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:45,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:45,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:31:45,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906960937] [2022-11-19 08:31:45,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:45,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:31:45,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:45,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:31:45,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:31:45,563 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:31:45,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:45,739 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-19 08:31:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:31:45,742 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-19 08:31:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:45,754 INFO L225 Difference]: With dead ends: 126 [2022-11-19 08:31:45,754 INFO L226 Difference]: Without dead ends: 59 [2022-11-19 08:31:45,759 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 [2022-11-19 08:31:45,763 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:45,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:31:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-19 08:31:45,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-19 08:31:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 08:31:45,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-19 08:31:45,847 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-11-19 08:31:45,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:45,848 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-19 08:31:45,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:31:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-19 08:31:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:31:45,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:45,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:45,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:31:45,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:45,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1977184354, now seen corresponding path program 1 times [2022-11-19 08:31:45,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:45,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911641977] [2022-11-19 08:31:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:45,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:46,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:46,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911641977] [2022-11-19 08:31:46,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911641977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:46,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:46,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:31:46,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404721071] [2022-11-19 08:31:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:46,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:31:46,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:31:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:31:46,049 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:31:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:46,139 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-11-19 08:31:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:31:46,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-19 08:31:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:46,157 INFO L225 Difference]: With dead ends: 95 [2022-11-19 08:31:46,157 INFO L226 Difference]: Without dead ends: 51 [2022-11-19 08:31:46,158 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 [2022-11-19 08:31:46,160 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:46,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:31:46,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-19 08:31:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-19 08:31:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:31:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-11-19 08:31:46,175 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-11-19 08:31:46,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:46,176 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-11-19 08:31:46,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:31:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-11-19 08:31:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:31:46,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:46,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:46,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:31:46,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash -570975999, now seen corresponding path program 1 times [2022-11-19 08:31:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:46,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492085878] [2022-11-19 08:31:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:46,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:46,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:46,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492085878] [2022-11-19 08:31:46,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492085878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:46,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:46,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:31:46,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155408623] [2022-11-19 08:31:46,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:46,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:31:46,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:46,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:31:46,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:31:46,317 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:31:46,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:46,367 INFO L93 Difference]: Finished difference Result 100 states and 127 transitions. [2022-11-19 08:31:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:31:46,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-19 08:31:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:46,370 INFO L225 Difference]: With dead ends: 100 [2022-11-19 08:31:46,370 INFO L226 Difference]: Without dead ends: 51 [2022-11-19 08:31:46,371 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 [2022-11-19 08:31:46,374 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:46,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:31:46,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-19 08:31:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-19 08:31:46,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:31:46,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-11-19 08:31:46,385 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 20 [2022-11-19 08:31:46,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:46,385 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-11-19 08:31:46,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:31:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-11-19 08:31:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:31:46,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:46,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:46,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:31:46,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1305235151, now seen corresponding path program 1 times [2022-11-19 08:31:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:46,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50907126] [2022-11-19 08:31:46,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:46,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:46,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50907126] [2022-11-19 08:31:46,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50907126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:46,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:46,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:31:46,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816148151] [2022-11-19 08:31:46,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:46,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:31:46,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:31:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:31:46,630 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-11-19 08:31:47,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:47,005 INFO L93 Difference]: Finished difference Result 165 states and 204 transitions. [2022-11-19 08:31:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:31:47,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 [2022-11-19 08:31:47,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:47,013 INFO L225 Difference]: With dead ends: 165 [2022-11-19 08:31:47,013 INFO L226 Difference]: Without dead ends: 116 [2022-11-19 08:31:47,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:31:47,024 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 116 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:47,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 151 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:31:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-19 08:31:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2022-11-19 08:31:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 80 states have internal predecessors, (92), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2022-11-19 08:31:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2022-11-19 08:31:47,061 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 30 [2022-11-19 08:31:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:47,062 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2022-11-19 08:31:47,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-11-19 08:31:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2022-11-19 08:31:47,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 08:31:47,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:47,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:47,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:31:47,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash -160661025, now seen corresponding path program 1 times [2022-11-19 08:31:47,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:47,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842930854] [2022-11-19 08:31:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:47,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:47,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:47,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842930854] [2022-11-19 08:31:47,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842930854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:47,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:47,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:31:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44408238] [2022-11-19 08:31:47,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:47,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:31:47,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:47,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:31:47,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:31:47,537 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 08:31:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:47,775 INFO L93 Difference]: Finished difference Result 326 states and 402 transitions. [2022-11-19 08:31:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:31:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-19 08:31:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:47,786 INFO L225 Difference]: With dead ends: 326 [2022-11-19 08:31:47,788 INFO L226 Difference]: Without dead ends: 218 [2022-11-19 08:31:47,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:31:47,791 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 97 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:47,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 202 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:31:47,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-19 08:31:47,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2022-11-19 08:31:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 137 states have (on average 1.218978102189781) internal successors, (167), 148 states have internal predecessors, (167), 34 states have call successors, (34), 28 states have call predecessors, (34), 34 states have return successors, (44), 36 states have call predecessors, (44), 34 states have call successors, (44) [2022-11-19 08:31:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 245 transitions. [2022-11-19 08:31:47,864 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 245 transitions. Word has length 31 [2022-11-19 08:31:47,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:47,865 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 245 transitions. [2022-11-19 08:31:47,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 08:31:47,865 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 245 transitions. [2022-11-19 08:31:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 08:31:47,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:47,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:47,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:31:47,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash -591971774, now seen corresponding path program 1 times [2022-11-19 08:31:47,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:47,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101962618] [2022-11-19 08:31:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:48,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:48,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101962618] [2022-11-19 08:31:48,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101962618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:48,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:48,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:31:48,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991793313] [2022-11-19 08:31:48,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:48,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:31:48,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:48,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:31:48,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:31:48,237 INFO L87 Difference]: Start difference. First operand 206 states and 245 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 08:31:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:48,536 INFO L93 Difference]: Finished difference Result 418 states and 513 transitions. [2022-11-19 08:31:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:31:48,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2022-11-19 08:31:48,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:48,544 INFO L225 Difference]: With dead ends: 418 [2022-11-19 08:31:48,545 INFO L226 Difference]: Without dead ends: 310 [2022-11-19 08:31:48,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:31:48,551 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 139 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:48,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 313 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:31:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-19 08:31:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 288. [2022-11-19 08:31:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 192 states have (on average 1.1979166666666667) internal successors, (230), 206 states have internal predecessors, (230), 48 states have call successors, (48), 40 states have call predecessors, (48), 47 states have return successors, (63), 50 states have call predecessors, (63), 48 states have call successors, (63) [2022-11-19 08:31:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 341 transitions. [2022-11-19 08:31:48,650 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 341 transitions. Word has length 34 [2022-11-19 08:31:48,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:48,651 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 341 transitions. [2022-11-19 08:31:48,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 08:31:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 341 transitions. [2022-11-19 08:31:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 08:31:48,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:48,653 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:48,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:31:48,654 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash 924459008, now seen corresponding path program 1 times [2022-11-19 08:31:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:48,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727187611] [2022-11-19 08:31:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:48,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:31:48,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:48,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727187611] [2022-11-19 08:31:48,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727187611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:48,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:48,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:31:48,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717251677] [2022-11-19 08:31:48,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:48,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:31:48,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:48,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:31:48,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:31:48,985 INFO L87 Difference]: Start difference. First operand 288 states and 341 transitions. Second operand has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 08:31:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:49,766 INFO L93 Difference]: Finished difference Result 970 states and 1199 transitions. [2022-11-19 08:31:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 08:31:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-19 08:31:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:49,772 INFO L225 Difference]: With dead ends: 970 [2022-11-19 08:31:49,772 INFO L226 Difference]: Without dead ends: 639 [2022-11-19 08:31:49,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:31:49,775 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:49,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 753 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:31:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-11-19 08:31:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 604. [2022-11-19 08:31:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 399 states have (on average 1.1829573934837092) internal successors, (472), 424 states have internal predecessors, (472), 106 states have call successors, (106), 90 states have call predecessors, (106), 98 states have return successors, (154), 103 states have call predecessors, (154), 106 states have call successors, (154) [2022-11-19 08:31:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 732 transitions. [2022-11-19 08:31:49,875 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 732 transitions. Word has length 39 [2022-11-19 08:31:49,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:49,876 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 732 transitions. [2022-11-19 08:31:49,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 08:31:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 732 transitions. [2022-11-19 08:31:49,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-19 08:31:49,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:49,888 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:49,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:31:49,889 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:49,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash -286999275, now seen corresponding path program 1 times [2022-11-19 08:31:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:49,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248558789] [2022-11-19 08:31:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 08:31:50,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:50,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248558789] [2022-11-19 08:31:50,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248558789] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:31:50,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453138813] [2022-11-19 08:31:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:50,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:31:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:50,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:31:50,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:31:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:50,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 08:31:50,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:31:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 08:31:51,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:31:51,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453138813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:51,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:31:51,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2022-11-19 08:31:51,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545292827] [2022-11-19 08:31:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:51,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:31:51,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:31:51,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:31:51,213 INFO L87 Difference]: Start difference. First operand 604 states and 732 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-19 08:31:52,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:52,004 INFO L93 Difference]: Finished difference Result 929 states and 1139 transitions. [2022-11-19 08:31:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:31:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 67 [2022-11-19 08:31:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:52,008 INFO L225 Difference]: With dead ends: 929 [2022-11-19 08:31:52,008 INFO L226 Difference]: Without dead ends: 327 [2022-11-19 08:31:52,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:31:52,012 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 136 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:52,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 166 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:31:52,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-19 08:31:52,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 285. [2022-11-19 08:31:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 191 states have (on average 1.1832460732984293) internal successors, (226), 203 states have internal predecessors, (226), 48 states have call successors, (48), 45 states have call predecessors, (48), 45 states have return successors, (64), 46 states have call predecessors, (64), 48 states have call successors, (64) [2022-11-19 08:31:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 338 transitions. [2022-11-19 08:31:52,072 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 338 transitions. Word has length 67 [2022-11-19 08:31:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:52,073 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 338 transitions. [2022-11-19 08:31:52,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-19 08:31:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 338 transitions. [2022-11-19 08:31:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-19 08:31:52,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:52,077 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:52,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:31:52,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-19 08:31:52,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash -765996758, now seen corresponding path program 1 times [2022-11-19 08:31:52,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:52,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118526256] [2022-11-19 08:31:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:52,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 08:31:52,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:52,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118526256] [2022-11-19 08:31:52,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118526256] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:31:52,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658998496] [2022-11-19 08:31:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:52,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:31:52,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:52,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:31:52,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:31:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:52,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-19 08:31:52,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:31:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:31:53,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:31:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 08:31:53,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658998496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:31:53,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [394501928] [2022-11-19 08:31:53,819 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-19 08:31:53,820 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:31:53,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:31:53,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:31:53,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:31:58,159 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 44 for LOIs [2022-11-19 08:31:58,170 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2022-11-19 08:31:58,626 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 40 for LOIs [2022-11-19 08:31:58,845 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 22 for LOIs [2022-11-19 08:31:58,867 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 38 for LOIs [2022-11-19 08:31:58,874 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 24 for LOIs [2022-11-19 08:31:58,878 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:32:06,109 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8126#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= 0 |old(~pumpRunning~0)|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= |#NULL.offset| 0) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-19 08:32:06,110 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:32:06,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:32:06,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 27 [2022-11-19 08:32:06,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007817904] [2022-11-19 08:32:06,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:32:06,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-19 08:32:06,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:06,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-19 08:32:06,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=3220, Unknown=0, NotChecked=0, Total=3540 [2022-11-19 08:32:06,114 INFO L87 Difference]: Start difference. First operand 285 states and 338 transitions. Second operand has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) [2022-11-19 08:32:10,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:10,069 INFO L93 Difference]: Finished difference Result 979 states and 1186 transitions. [2022-11-19 08:32:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-19 08:32:10,072 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) Word has length 70 [2022-11-19 08:32:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:10,076 INFO L225 Difference]: With dead ends: 979 [2022-11-19 08:32:10,076 INFO L226 Difference]: Without dead ends: 696 [2022-11-19 08:32:10,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 167 SyntacticMatches, 10 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5264 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1490, Invalid=13516, Unknown=0, NotChecked=0, Total=15006 [2022-11-19 08:32:10,083 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1134 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:10,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 216 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:32:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-19 08:32:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 359. [2022-11-19 08:32:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 241 states have (on average 1.1410788381742738) internal successors, (275), 257 states have internal predecessors, (275), 59 states have call successors, (59), 57 states have call predecessors, (59), 58 states have return successors, (69), 58 states have call predecessors, (69), 59 states have call successors, (69) [2022-11-19 08:32:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 403 transitions. [2022-11-19 08:32:10,138 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 403 transitions. Word has length 70 [2022-11-19 08:32:10,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:10,138 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 403 transitions. [2022-11-19 08:32:10,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 5.714285714285714) internal successors, (120), 20 states have internal predecessors, (120), 11 states have call successors, (30), 8 states have call predecessors, (30), 12 states have return successors, (28), 15 states have call predecessors, (28), 11 states have call successors, (28) [2022-11-19 08:32:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 403 transitions. [2022-11-19 08:32:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 08:32:10,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:10,141 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:10,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 08:32:10,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-19 08:32:10,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:10,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:10,348 INFO L85 PathProgramCache]: Analyzing trace with hash 838710707, now seen corresponding path program 1 times [2022-11-19 08:32:10,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:10,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606197512] [2022-11-19 08:32:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:10,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:32:10,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:10,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606197512] [2022-11-19 08:32:10,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606197512] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:32:10,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285056141] [2022-11-19 08:32:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:10,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:32:10,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:32:10,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:32:10,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:32:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:10,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-19 08:32:10,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:11,244 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 08:32:11,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:32:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 08:32:11,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285056141] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:32:11,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [138073141] [2022-11-19 08:32:11,822 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 08:32:11,823 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:32:11,824 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:32:11,825 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:32:11,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:32:14,453 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 50 for LOIs [2022-11-19 08:32:14,466 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2022-11-19 08:32:14,857 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 24 for LOIs [2022-11-19 08:32:15,015 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 50 for LOIs [2022-11-19 08:32:15,121 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 22 for LOIs [2022-11-19 08:32:15,123 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:32:22,680 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10736#(and (<= ~cleanupTimeShifts~0 4) (<= ~head~0.offset 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= 0 |#NULL.base|) (<= 0 |old(~pumpRunning~0)|) (<= 0 ~head~0.offset) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 1 ~systemActive~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (<= |#NULL.offset| 0) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 4 ~cleanupTimeShifts~0) (<= |old(~pumpRunning~0)| 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (<= |#NULL.base| 0) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= ~head~0.base 0) (<= 0 |#NULL.offset|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-11-19 08:32:22,680 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:32:22,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:32:22,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 11] total 28 [2022-11-19 08:32:22,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806270962] [2022-11-19 08:32:22,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:32:22,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-19 08:32:22,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:22,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-19 08:32:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=3324, Unknown=0, NotChecked=0, Total=3782 [2022-11-19 08:32:22,683 INFO L87 Difference]: Start difference. First operand 359 states and 403 transitions. Second operand has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-19 08:32:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:29,046 INFO L93 Difference]: Finished difference Result 1588 states and 1886 transitions. [2022-11-19 08:32:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-19 08:32:29,047 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) Word has length 68 [2022-11-19 08:32:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:29,050 INFO L225 Difference]: With dead ends: 1588 [2022-11-19 08:32:29,051 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:32:29,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9002 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=3503, Invalid=21937, Unknown=0, NotChecked=0, Total=25440 [2022-11-19 08:32:29,061 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 906 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 799 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:29,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 541 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 08:32:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:32:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:32:29,063 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) [2022-11-19 08:32:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:32:29,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2022-11-19 08:32:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:29,064 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:32:29,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 10 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 13 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-19 08:32:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:32:29,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:32:29,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:32:29,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 08:32:29,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 08:32:29,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:32:43,886 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2022-11-19 08:32:43,886 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2022-11-19 08:32:43,887 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 119 130) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse3 (not (= ~pumpRunning~0 1))) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse4 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse5 .cse1 .cse6 .cse7 .cse4) (or .cse1 .cse6 .cse3 .cse7 .cse4))) [2022-11-19 08:32:43,887 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2022-11-19 08:32:43,887 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse8 (= |timeShift_processEnvironment_~tmp~3#1| 0)) (.cse9 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse5 .cse4 .cse6) (or .cse1 .cse2 .cse5 (and .cse7 .cse6 .cse8 .cse9) .cse3) (or (and .cse7 .cse8 .cse9) .cse1 .cse5 .cse4 .cse3))) [2022-11-19 08:32:43,888 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2022-11-19 08:32:43,888 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse7 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse8 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse2 .cse5 .cse6 (not (<= |old(~waterLevel~0)| 0))) (or .cse1 (and .cse7 .cse6 .cse8) .cse5 .cse4 .cse3) (or (and .cse7 .cse8) .cse1 .cse2 .cse5 .cse3))) [2022-11-19 08:32:43,888 INFO L899 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2022-11-19 08:32:43,889 INFO L895 garLoopResultBuilder]: At program point L69(lines 69 82) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse5 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|)) (.cse8 (= ~pumpRunning~0 1)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse4 .cse5 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) .cse6 (and (<= 2 ~waterLevel~0) .cse4 .cse5 .cse7 .cse8) .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse6 .cse9 (and (<= ~waterLevel~0 0) .cse7)) (or .cse1 .cse9 .cse2 .cse3) (or .cse0 .cse1 .cse6 .cse7 (not (<= |old(~waterLevel~0)| 0))) (or .cse1 (and (<= ~waterLevel~0 1) .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse8) .cse6 .cse9 .cse3))) [2022-11-19 08:32:43,889 INFO L895 garLoopResultBuilder]: At program point L69-1(lines 54 86) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= |timeShift_processEnvironment_~tmp~3#1| 0)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse14 (<= ~waterLevel~0 0)) (.cse13 (not (<= |old(~waterLevel~0)| 1))) (.cse12 (not (= ~methaneLevelCritical~0 1))) (.cse15 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= 1 ~systemActive~0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (= ~pumpRunning~0 1)) (.cse11 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse3 (= ~waterLevel~0 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (not (< |old(~waterLevel~0)| 3)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9 .cse10) (or .cse7 (and .cse11 .cse1 .cse2) .cse9 (and .cse0 .cse1 .cse2 .cse5 .cse6) .cse12 .cse10) (or .cse13 .cse7 .cse8 .cse9 .cse14) (or .cse13 .cse7 .cse9 .cse12 (and .cse14 .cse4)) (or .cse13 .cse15 .cse7 .cse12 .cse4) (or .cse15 .cse7 (and .cse11 .cse2 (< ~waterLevel~0 3)) .cse12 .cse10) (or .cse15 .cse7 .cse8 (and (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse6) (and .cse11 .cse1 .cse2 .cse3 .cse4) .cse10))) [2022-11-19 08:32:43,890 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (and .cse8 .cse13 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse13 .cse4 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse5)) (.cse6 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= ~waterLevel~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse7 (and .cse8 (< ~waterLevel~0 3)) .cse6) (or .cse9 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse10 .cse3 .cse7 .cse12 .cse6) (or .cse9 .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse10 .cse12 .cse6) (or .cse9 .cse1 .cse10 .cse11 .cse7)))) [2022-11-19 08:32:43,890 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-19 08:32:43,890 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (< ~waterLevel~0 3)) .cse4) (or .cse0 .cse1 .cse5 (and .cse3 .cse6) .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse7 .cse2 .cse4) (or .cse1 .cse5 .cse7 .cse4))) [2022-11-19 08:32:43,890 INFO L895 garLoopResultBuilder]: At program point L371-1(lines 352 376) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse3 (and .cse8 .cse13 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse13 .cse4 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse5)) (.cse6 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= ~waterLevel~0 0)) (.cse7 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse5) .cse6) (or .cse0 .cse1 .cse7 (and .cse8 (< ~waterLevel~0 3)) .cse6) (or .cse9 .cse1 .cse2 .cse10 .cse11) (or .cse1 .cse10 .cse3 .cse7 .cse12 .cse6) (or .cse9 .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse10 .cse12 .cse6) (or .cse9 .cse1 .cse10 .cse11 .cse7)))) [2022-11-19 08:32:43,891 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2022-11-19 08:32:43,891 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 .cse5 .cse4 .cse3) (or .cse1 .cse2 .cse5 .cse3))) [2022-11-19 08:32:43,891 INFO L899 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2022-11-19 08:32:43,891 INFO L895 garLoopResultBuilder]: At program point L360(lines 360 368) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (<= ~waterLevel~0 0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 1)) (.cse3 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or .cse1 (and .cse5 .cse6 .cse7) .cse8 .cse4 .cse3) (or .cse1 .cse2 .cse8 (and .cse5 .cse6 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse7) .cse3))) [2022-11-19 08:32:43,891 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2022-11-19 08:32:43,892 INFO L895 garLoopResultBuilder]: At program point L63(lines 63 83) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse14 (<= ~waterLevel~0 1)) (.cse12 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse13 (= ~pumpRunning~0 1))) (let ((.cse5 (and .cse14 .cse12 (= |timeShift_processEnvironment_~tmp~3#1| 0) .cse13)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (and (<= ~waterLevel~0 0) .cse4)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse9 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (and .cse11 .cse14 .cse12)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse5 .cse3 .cse6 .cse7) (or .cse2 .cse8 .cse5 .cse6 .cse9 .cse7) (or .cse0 .cse2 .cse6 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse6 .cse10) (or .cse0 .cse1 .cse2 .cse9 .cse4) (or .cse1 .cse2 (and .cse11 .cse12 (< ~waterLevel~0 3)) .cse9 .cse7) (or .cse1 .cse2 .cse8 .cse3 (and (<= 2 ~waterLevel~0) .cse12 .cse4 .cse13) .cse7)))) [2022-11-19 08:32:43,892 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 294 317) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= 1 ~systemActive~0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and .cse9 .cse8 .cse10)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (and .cse9 .cse8 .cse10 (= ~pumpRunning~0 1))) (.cse1 (not .cse8)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse2 .cse4) (or .cse5 .cse6 .cse1 .cse7 .cse4) (or .cse0 .cse1 .cse3 .cse7 .cse4)))) [2022-11-19 08:32:43,892 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2022-11-19 08:32:43,892 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2022-11-19 08:32:43,892 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2022-11-19 08:32:43,893 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 189 218) the Hoare annotation is: true [2022-11-19 08:32:43,893 INFO L902 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2022-11-19 08:32:43,893 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-11-19 08:32:43,893 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-11-19 08:32:43,893 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2022-11-19 08:32:43,893 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2022-11-19 08:32:43,894 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2022-11-19 08:32:43,894 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2022-11-19 08:32:43,894 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 131 139) the Hoare annotation is: true [2022-11-19 08:32:43,894 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2022-11-19 08:32:43,894 INFO L895 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse4 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse6) (and .cse7 .cse1 .cse3 .cse4 .cse6) (and .cse0 .cse7 .cse5 .cse1 .cse3))) [2022-11-19 08:32:43,894 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2022-11-19 08:32:43,895 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2022-11-19 08:32:43,895 INFO L895 garLoopResultBuilder]: At program point L275(lines 275 282) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) (= 1 ~systemActive~0)) [2022-11-19 08:32:43,895 INFO L902 garLoopResultBuilder]: At program point L275-2(lines 275 282) the Hoare annotation is: true [2022-11-19 08:32:43,895 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 08:32:43,895 INFO L895 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse6 .cse1 .cse3 .cse4 .cse5))) [2022-11-19 08:32:43,895 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2022-11-19 08:32:43,895 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2022-11-19 08:32:43,896 INFO L902 garLoopResultBuilder]: At program point L545(lines 486 549) the Hoare annotation is: true [2022-11-19 08:32:43,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:32:43,896 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse6 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and (<= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse3 .cse4 .cse6))) [2022-11-19 08:32:43,896 INFO L895 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2022-11-19 08:32:43,896 INFO L899 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2022-11-19 08:32:43,896 INFO L895 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (< ~waterLevel~0 3)) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse1 .cse3 .cse4) (and .cse6 .cse1 .cse3 .cse4 .cse5))) [2022-11-19 08:32:43,896 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2022-11-19 08:32:43,897 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 107 118) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~pumpRunning~0 1))) (.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse3) (or .cse0 .cse1 .cse6 (< ~waterLevel~0 3) .cse4) (or .cse5 .cse1 .cse7 .cse6 .cse3) (or .cse1 .cse2 .cse7 .cse3 .cse4))) [2022-11-19 08:32:43,897 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (< ~waterLevel~0 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse6) (or .cse0 .cse7 .cse1 .cse3 .cse4) (or .cse5 .cse0 .cse7 .cse6))) [2022-11-19 08:32:43,897 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2022-11-19 08:32:43,897 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse2 (<= ~waterLevel~0 1))) (let ((.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (< ~waterLevel~0 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5 .cse6) (or .cse4 .cse7 .cse5 .cse8) (or .cse4 .cse9 .cse7 .cse8) (or .cse0 .cse4 .cse2 .cse9 .cse6) (or .cse0 .cse4 .cse9 .cse8 (and .cse1 .cse3))))) [2022-11-19 08:32:43,897 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 326 350) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8) (or .cse5 .cse6 .cse0 .cse2 .cse8) (or .cse0 .cse7 .cse1 .cse3 .cse4))) [2022-11-19 08:32:43,898 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2022-11-19 08:32:43,898 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2022-11-19 08:32:43,898 INFO L895 garLoopResultBuilder]: At program point L330(lines 330 347) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= ~pumpRunning~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse8 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= ~waterLevel~0 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8) (or .cse5 .cse6 .cse0 .cse2 .cse8) (or .cse0 .cse7 .cse1 .cse3 .cse4))) [2022-11-19 08:32:43,898 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse8 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (< ~waterLevel~0 3))) (.cse1 (not .cse8)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse6 .cse4) (or .cse1 .cse3 .cse5 .cse7)))) [2022-11-19 08:32:43,899 INFO L895 garLoopResultBuilder]: At program point L390-1(line 390) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (= ~methaneLevelCritical~0 1))) (.cse6 (not (< ~waterLevel~0 3))) (.cse3 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1)) (.cse4 (or (= ~pumpRunning~0 0) (not (< 0 ~waterLevel~0)))) (.cse5 (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret15#1| ~methaneLevelCritical~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 (and (<= 2 ~waterLevel~0) .cse3 .cse4 .cse5) .cse6) (or .cse1 .cse7 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse6 (and .cse3 .cse4 .cse5)) (or .cse1 .cse2 .cse7 .cse9))) [2022-11-19 08:32:43,899 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 410 420) the Hoare annotation is: true [2022-11-19 08:32:43,899 INFO L902 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2022-11-19 08:32:43,899 INFO L899 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2022-11-19 08:32:43,900 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2022-11-19 08:32:43,903 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:43,906 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:32:43,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:32:43 BoogieIcfgContainer [2022-11-19 08:32:43,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:32:43,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:32:43,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:32:43,979 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:32:43,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:45" (3/4) ... [2022-11-19 08:32:43,983 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:32:43,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 08:32:43,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 08:32:43,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 08:32:43,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 08:32:43,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 08:32:43,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 08:32:43,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-19 08:32:43,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-19 08:32:44,008 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2022-11-19 08:32:44,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-19 08:32:44,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 08:32:44,015 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:32:44,016 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:32:44,045 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 08:32:44,046 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || ((2 <= waterLevel && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel < 3)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0) || !(methaneLevelCritical == 1)) [2022-11-19 08:32:44,046 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) [2022-11-19 08:32:44,047 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || (((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 08:32:44,047 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) && ((((!(1 == systemActive) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 08:32:44,048 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) [2022-11-19 08:32:44,048 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && tmp == 1) && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(waterLevel < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3)) || ((tmp == 1 && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) [2022-11-19 08:32:44,049 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) || !(\old(waterLevel) <= 0))) && ((((!(1 == systemActive) || ((((waterLevel <= 1 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 08:32:44,050 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 08:32:44,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:32:44,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:32:44,081 INFO L158 Benchmark]: Toolchain (without parser) took 60669.10ms. Allocated memory was 163.6MB in the beginning and 465.6MB in the end (delta: 302.0MB). Free memory was 131.0MB in the beginning and 370.3MB in the end (delta: -239.3MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,081 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 99.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.01ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 131.1MB in the end (delta: -439.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.70ms. Allocated memory is still 163.6MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,087 INFO L158 Benchmark]: Boogie Preprocessor took 30.36ms. Allocated memory is still 163.6MB. Free memory was 129.0MB in the beginning and 127.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,087 INFO L158 Benchmark]: RCFGBuilder took 883.35ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 102.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,088 INFO L158 Benchmark]: TraceAbstraction took 58966.58ms. Allocated memory was 163.6MB in the beginning and 465.6MB in the end (delta: 302.0MB). Free memory was 101.3MB in the beginning and 376.6MB in the end (delta: -275.4MB). Peak memory consumption was 249.7MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,088 INFO L158 Benchmark]: Witness Printer took 101.33ms. Allocated memory is still 465.6MB. Free memory was 376.6MB in the beginning and 370.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:32:44,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 99.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.01ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 131.1MB in the end (delta: -439.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.70ms. Allocated memory is still 163.6MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.36ms. Allocated memory is still 163.6MB. Free memory was 129.0MB in the beginning and 127.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 883.35ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 102.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 58966.58ms. Allocated memory was 163.6MB in the beginning and 465.6MB in the end (delta: 302.0MB). Free memory was 101.3MB in the beginning and 376.6MB in the end (delta: -275.4MB). Peak memory consumption was 249.7MB. Max. memory is 16.1GB. * Witness Printer took 101.33ms. Allocated memory is still 465.6MB. Free memory was 376.6MB in the beginning and 370.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 590]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.8s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2718 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2684 mSDsluCounter, 2541 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1946 mSDsCounter, 1685 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5673 IncrementalHoareTripleChecker+Invalid, 7358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1685 mSolverCounterUnsat, 595 mSDtfsCounter, 5673 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 783 GetRequests, 426 SyntacticMatches, 15 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14387 ImplicationChecksByTransitivity, 22.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=7, InterpolantAutomatonStates: 236, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 454 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 2029 PreInvPairs, 2542 NumberOfFragments, 2655 HoareAnnotationTreeSize, 2029 FomulaSimplifications, 17825 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 37 FomulaSimplificationsInter, 97376 FormulaSimplificationTreeSizeReductionInter, 12.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 722 ConstructedInterpolants, 0 QuantifiedInterpolants, 2355 SizeOfPredicates, 23 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 174/253 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: 54]: Loop Invariant Derived loop invariant: (((((((((((((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == \old(pumpRunning) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || ((((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(waterLevel < 3))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && waterLevel < 3) || ((((waterLevel <= 1 && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) && pumpRunning == 1)) || ((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) && pumpRunning == 1)) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) && ((((!(1 == systemActive) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || (((waterLevel <= 1 && methaneLevelCritical == tmp) && tmp == 0) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel < 3)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && methaneLevelCritical == tmp)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == 0 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp___0 <= 1)) || !(methaneLevelCritical == 0)) || ((((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel == tmp___0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (waterLevel <= 0 && waterLevel <= \old(waterLevel)))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || waterLevel <= \old(waterLevel)) || !(\old(waterLevel) <= 0))) && ((((!(1 == systemActive) || ((((waterLevel <= 1 && methaneLevelCritical == tmp) && waterLevel == tmp___0) && tmp == 0) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3))) && ((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || ((2 <= waterLevel && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (pumpRunning == 0 && waterLevel < 3)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((pumpRunning == 0 && waterLevel <= 1) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || waterLevel <= \old(waterLevel))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 1 && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || waterLevel <= 0) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) < 3)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || (((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && pumpRunning == 1)) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || ((((waterLevel + 1 <= \old(waterLevel) || waterLevel <= 0) && waterLevel <= \old(waterLevel)) && tmp == 0) && pumpRunning == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && tmp == 1) && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(waterLevel < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel <= 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(waterLevel < 3)) || ((tmp == 1 && (pumpRunning == 0 || !(0 < waterLevel))) && aux-isMethaneAlarm()-aux == methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:32:44,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bd93796-55c2-4d7a-9d8f-d6f7f7410fef/bin/utaipan-I9t0OCRTmS/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