./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 2329fc70 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_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/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_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh --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-2329fc7 [2022-12-14 11:39:23,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:39:23,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:39:23,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:39:23,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:39:23,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:39:23,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:39:23,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:39:23,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:39:23,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:39:23,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:39:23,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:39:23,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:39:23,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:39:23,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:39:23,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:39:23,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:39:23,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:39:23,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:39:23,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:39:23,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:39:23,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:39:23,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:39:23,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:39:23,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:39:23,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:39:23,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:39:23,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:39:23,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:39:23,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:39:23,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:39:23,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:39:23,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:39:23,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:39:23,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:39:23,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:39:23,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:39:23,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:39:23,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:39:23,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:39:23,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:39:23,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:39:23,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:39:23,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:39:23,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:39:23,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:39:23,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:39:23,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:39:23,628 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:39:23,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:39:23,628 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:39:23,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:39:23,629 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:39:23,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:39:23,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:39:23,629 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:39:23,629 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:39:23,629 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:39:23,629 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:39:23,630 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:39:23,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:39:23,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:39:23,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:39:23,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:39:23,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:39:23,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:39:23,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:39:23,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:39:23,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:39:23,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:39:23,633 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:39:23,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:39:23,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:39:23,633 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:39:23,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:39:23,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:39:23,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:39:23,634 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_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2022-12-14 11:39:23,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:39:23,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:39:23,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:39:23,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:39:23,833 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:39:23,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-12-14 11:39:26,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:39:26,546 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:39:26,547 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-12-14 11:39:26,555 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/data/62929f61c/6e503c7fba8b4fadb96898c96e99c5da/FLAG4c740064c [2022-12-14 11:39:26,942 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/data/62929f61c/6e503c7fba8b4fadb96898c96e99c5da [2022-12-14 11:39:26,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:39:26,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:39:26,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:39:26,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:39:26,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:39:26,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:26" (1/1) ... [2022-12-14 11:39:26,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441d89cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:26, skipping insertion in model container [2022-12-14 11:39:26,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:39:26" (1/1) ... [2022-12-14 11:39:26,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:39:26,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:39:27,121 WARN L237 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_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-12-14 11:39:27,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:39:27,167 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:39:27,190 WARN L237 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_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-12-14 11:39:27,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:39:27,225 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:39:27,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27 WrapperNode [2022-12-14 11:39:27,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:39:27,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:39:27,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:39:27,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:39:27,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,259 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 194 [2022-12-14 11:39:27,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:39:27,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:39:27,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:39:27,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:39:27,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:39:27,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:39:27,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:39:27,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:39:27,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (1/1) ... [2022-12-14 11:39:27,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:39:27,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:27,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:39:27,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:39:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:39:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 11:39:27,334 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 11:39:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 11:39:27,335 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 11:39:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 11:39:27,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 11:39:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 11:39:27,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 11:39:27,336 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 11:39:27,336 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 11:39:27,336 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 11:39:27,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-12-14 11:39:27,336 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-12-14 11:39:27,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-12-14 11:39:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:39:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 11:39:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 11:39:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:39:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:39:27,404 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:39:27,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:39:27,611 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:39:27,692 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:39:27,692 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 11:39:27,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:27 BoogieIcfgContainer [2022-12-14 11:39:27,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:39:27,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:39:27,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:39:27,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:39:27,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:39:26" (1/3) ... [2022-12-14 11:39:27,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef2bdbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:39:27, skipping insertion in model container [2022-12-14 11:39:27,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:39:27" (2/3) ... [2022-12-14 11:39:27,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef2bdbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:39:27, skipping insertion in model container [2022-12-14 11:39:27,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:27" (3/3) ... [2022-12-14 11:39:27,704 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2022-12-14 11:39:27,723 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:39:27,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:39:27,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:39:27,771 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;@3cada8d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:39:27,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:39:27,775 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) [2022-12-14 11:39:27,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 11:39:27,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:27,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:27,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:27,786 INFO L85 PathProgramCache]: Analyzing trace with hash -116043441, now seen corresponding path program 1 times [2022-12-14 11:39:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:27,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659740172] [2022-12-14 11:39:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:27,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:27,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:27,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659740172] [2022-12-14 11:39:27,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659740172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:27,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:27,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:39:27,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555846403] [2022-12-14 11:39:27,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:27,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:39:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:27,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:39:27,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:39:27,967 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) [2022-12-14 11:39:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:28,031 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-12-14 11:39:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:39:28,033 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 [2022-12-14 11:39:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:28,040 INFO L225 Difference]: With dead ends: 126 [2022-12-14 11:39:28,041 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 11:39:28,043 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 [2022-12-14 11:39:28,046 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:28,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:39:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 11:39:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-12-14 11:39:28,073 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) [2022-12-14 11:39:28,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-12-14 11:39:28,075 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 17 [2022-12-14 11:39:28,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:28,076 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-12-14 11:39:28,076 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) [2022-12-14 11:39:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-12-14 11:39:28,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 11:39:28,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:28,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:28,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:39:28,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:28,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:28,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1449944599, now seen corresponding path program 1 times [2022-12-14 11:39:28,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:28,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043914506] [2022-12-14 11:39:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:28,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:28,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:28,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043914506] [2022-12-14 11:39:28,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043914506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:28,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:28,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211980140] [2022-12-14 11:39:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:28,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:39:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:28,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:39:28,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:39:28,163 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) [2022-12-14 11:39:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:28,201 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-12-14 11:39:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:39:28,202 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 [2022-12-14 11:39:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:28,202 INFO L225 Difference]: With dead ends: 95 [2022-12-14 11:39:28,202 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 11:39:28,203 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 [2022-12-14 11:39:28,204 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 [2022-12-14 11:39:28,204 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] [2022-12-14 11:39:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 11:39:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 11:39:28,210 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) [2022-12-14 11:39:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-12-14 11:39:28,211 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 18 [2022-12-14 11:39:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:28,211 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-12-14 11:39:28,211 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) [2022-12-14 11:39:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-12-14 11:39:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 11:39:28,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:28,212 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] [2022-12-14 11:39:28,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:39:28,212 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:28,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1213767225, now seen corresponding path program 1 times [2022-12-14 11:39:28,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:28,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866863417] [2022-12-14 11:39:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:28,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:28,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866863417] [2022-12-14 11:39:28,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866863417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:28,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:28,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:39:28,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346878830] [2022-12-14 11:39:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:28,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:39:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:28,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:39:28,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:39:28,288 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) [2022-12-14 11:39:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:28,323 INFO L93 Difference]: Finished difference Result 100 states and 127 transitions. [2022-12-14 11:39:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:39:28,324 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 [2022-12-14 11:39:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:28,325 INFO L225 Difference]: With dead ends: 100 [2022-12-14 11:39:28,325 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 11:39:28,326 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 [2022-12-14 11:39:28,327 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 [2022-12-14 11:39:28,327 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] [2022-12-14 11:39:28,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 11:39:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 11:39:28,335 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) [2022-12-14 11:39:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-12-14 11:39:28,336 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 20 [2022-12-14 11:39:28,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:28,336 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-12-14 11:39:28,336 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) [2022-12-14 11:39:28,336 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-12-14 11:39:28,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 11:39:28,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:28,337 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] [2022-12-14 11:39:28,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:39:28,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:28,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash -357432107, now seen corresponding path program 1 times [2022-12-14 11:39:28,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:28,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831884467] [2022-12-14 11:39:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:28,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:28,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831884467] [2022-12-14 11:39:28,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831884467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:28,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:28,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:39:28,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057983794] [2022-12-14 11:39:28,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:28,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:39:28,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:28,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:39:28,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:39:28,438 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) [2022-12-14 11:39:28,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:28,607 INFO L93 Difference]: Finished difference Result 165 states and 204 transitions. [2022-12-14 11:39:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:39:28,608 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 [2022-12-14 11:39:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:28,609 INFO L225 Difference]: With dead ends: 165 [2022-12-14 11:39:28,609 INFO L226 Difference]: Without dead ends: 116 [2022-12-14 11:39:28,610 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 [2022-12-14 11:39:28,611 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 116 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:28,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 151 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:39:28,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-14 11:39:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2022-12-14 11:39:28,629 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) [2022-12-14 11:39:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2022-12-14 11:39:28,631 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 30 [2022-12-14 11:39:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:28,631 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2022-12-14 11:39:28,631 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) [2022-12-14 11:39:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2022-12-14 11:39:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 11:39:28,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:28,632 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] [2022-12-14 11:39:28,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:39:28,633 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:28,633 INFO L85 PathProgramCache]: Analyzing trace with hash -156559801, now seen corresponding path program 1 times [2022-12-14 11:39:28,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:28,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880093142] [2022-12-14 11:39:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:28,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:28,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880093142] [2022-12-14 11:39:28,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880093142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:28,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:28,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:39:28,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757468124] [2022-12-14 11:39:28,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:28,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:39:28,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:28,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:39:28,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:39:28,774 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) [2022-12-14 11:39:28,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:28,875 INFO L93 Difference]: Finished difference Result 287 states and 351 transitions. [2022-12-14 11:39:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:39:28,876 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 [2022-12-14 11:39:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:28,878 INFO L225 Difference]: With dead ends: 287 [2022-12-14 11:39:28,878 INFO L226 Difference]: Without dead ends: 179 [2022-12-14 11:39:28,879 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 [2022-12-14 11:39:28,880 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 71 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:28,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 187 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:39:28,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-14 11:39:28,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 160. [2022-12-14 11:39:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 115 states have internal predecessors, (130), 26 states have call successors, (26), 22 states have call predecessors, (26), 27 states have return successors, (33), 28 states have call predecessors, (33), 26 states have call successors, (33) [2022-12-14 11:39:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2022-12-14 11:39:28,908 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 31 [2022-12-14 11:39:28,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:28,908 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 189 transitions. [2022-12-14 11:39:28,909 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) [2022-12-14 11:39:28,909 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 189 transitions. [2022-12-14 11:39:28,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 11:39:28,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:28,910 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] [2022-12-14 11:39:28,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:39:28,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:28,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash 405475353, now seen corresponding path program 1 times [2022-12-14 11:39:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:28,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755023557] [2022-12-14 11:39:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:29,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:29,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755023557] [2022-12-14 11:39:29,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755023557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:29,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:29,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 11:39:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535320537] [2022-12-14 11:39:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:29,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:39:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:39:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:39:29,186 INFO L87 Difference]: Start difference. First operand 160 states and 189 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 11:39:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:29,657 INFO L93 Difference]: Finished difference Result 475 states and 592 transitions. [2022-12-14 11:39:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:39:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2022-12-14 11:39:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:29,660 INFO L225 Difference]: With dead ends: 475 [2022-12-14 11:39:29,660 INFO L226 Difference]: Without dead ends: 367 [2022-12-14 11:39:29,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-12-14 11:39:29,662 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 324 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:29,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 256 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:39:29,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-12-14 11:39:29,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 335. [2022-12-14 11:39:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 225 states have (on average 1.2533333333333334) internal successors, (282), 243 states have internal predecessors, (282), 57 states have call successors, (57), 44 states have call predecessors, (57), 52 states have return successors, (72), 58 states have call predecessors, (72), 57 states have call successors, (72) [2022-12-14 11:39:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 411 transitions. [2022-12-14 11:39:29,709 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 411 transitions. Word has length 34 [2022-12-14 11:39:29,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:29,709 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 411 transitions. [2022-12-14 11:39:29,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 11:39:29,710 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 411 transitions. [2022-12-14 11:39:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 11:39:29,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:29,712 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] [2022-12-14 11:39:29,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:39:29,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:29,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:29,712 INFO L85 PathProgramCache]: Analyzing trace with hash -212394441, now seen corresponding path program 1 times [2022-12-14 11:39:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:29,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148299216] [2022-12-14 11:39:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:39:29,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:29,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148299216] [2022-12-14 11:39:29,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148299216] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:29,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910067744] [2022-12-14 11:39:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:29,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:29,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:29,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:29,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:39:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:29,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 11:39:29,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:30,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:39:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:39:30,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910067744] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:39:30,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2135414093] [2022-12-14 11:39:30,486 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2022-12-14 11:39:30,486 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:39:30,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:39:30,496 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:39:30,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:30,821 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-12-14 11:39:30,830 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 115 for LOIs [2022-12-14 11:39:31,729 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 112 for LOIs [2022-12-14 11:39:31,929 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 113 for LOIs [2022-12-14 11:39:31,986 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 44 for LOIs [2022-12-14 11:39:31,990 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:39:40,011 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3472#(and (= (select |#length| 15) 25) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (= (select |#valid| 9) 1) (= (select |#length| 12) 25) (= (select |#valid| 11) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= 30 (select |#length| 13)) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= 30 (select |#length| 10)) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (= (select |#valid| 12) 1) (= (select |#valid| 4) 1) (= (select |#valid| 1) 1) (= (select |#length| 6) 21) (= (select |#valid| 14) 1) (= |old(~waterLevel~0)| ~waterLevel~0) (= 9 (select |#length| 14)) (= (select |#valid| 0) 0) (= ~head~0.base 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= (select (select |#memory_int| 1) 0) 48) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= (select |#valid| 6) 1) (= (select (select |#memory_int| 1) 1) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-12-14 11:39:40,011 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:39:40,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:39:40,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 12] total 26 [2022-12-14 11:39:40,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661025364] [2022-12-14 11:39:40,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:39:40,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 11:39:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:40,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 11:39:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=2436, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 11:39:40,013 INFO L87 Difference]: Start difference. First operand 335 states and 411 transitions. Second operand has 26 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 6 states have call successors, (15), 5 states have call predecessors, (15), 12 states have return successors, (15), 11 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-14 11:39:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:42,198 INFO L93 Difference]: Finished difference Result 1537 states and 1962 transitions. [2022-12-14 11:39:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-12-14 11:39:42,198 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 6 states have call successors, (15), 5 states have call predecessors, (15), 12 states have return successors, (15), 11 states have call predecessors, (15), 6 states have call successors, (15) Word has length 39 [2022-12-14 11:39:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:42,206 INFO L225 Difference]: With dead ends: 1537 [2022-12-14 11:39:42,206 INFO L226 Difference]: Without dead ends: 1324 [2022-12-14 11:39:42,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 76 SyntacticMatches, 5 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4750 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1134, Invalid=11748, Unknown=0, NotChecked=0, Total=12882 [2022-12-14 11:39:42,212 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 872 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:42,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 965 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:39:42,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-12-14 11:39:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1065. [2022-12-14 11:39:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 726 states have (on average 1.234159779614325) internal successors, (896), 763 states have internal predecessors, (896), 179 states have call successors, (179), 142 states have call predecessors, (179), 159 states have return successors, (238), 179 states have call predecessors, (238), 179 states have call successors, (238) [2022-12-14 11:39:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1313 transitions. [2022-12-14 11:39:42,309 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1313 transitions. Word has length 39 [2022-12-14 11:39:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:42,309 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1313 transitions. [2022-12-14 11:39:42,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 6 states have call successors, (15), 5 states have call predecessors, (15), 12 states have return successors, (15), 11 states have call predecessors, (15), 6 states have call successors, (15) [2022-12-14 11:39:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1313 transitions. [2022-12-14 11:39:42,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 11:39:42,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:42,311 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:39:42,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:39:42,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:42,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:42,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1989638189, now seen corresponding path program 1 times [2022-12-14 11:39:42,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:42,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423876088] [2022-12-14 11:39:42,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:42,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:39:42,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:42,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423876088] [2022-12-14 11:39:42,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423876088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:42,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:39:42,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 11:39:42,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141066120] [2022-12-14 11:39:42,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:42,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 11:39:42,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:42,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 11:39:42,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:39:42,728 INFO L87 Difference]: Start difference. First operand 1065 states and 1313 transitions. Second operand has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 11:39:43,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:43,235 INFO L93 Difference]: Finished difference Result 2470 states and 3096 transitions. [2022-12-14 11:39:43,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:39:43,235 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2022-12-14 11:39:43,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:43,242 INFO L225 Difference]: With dead ends: 2470 [2022-12-14 11:39:43,243 INFO L226 Difference]: Without dead ends: 1700 [2022-12-14 11:39:43,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-12-14 11:39:43,245 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 225 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:43,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 107 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:39:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-12-14 11:39:43,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1598. [2022-12-14 11:39:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1080 states have (on average 1.1953703703703704) internal successors, (1291), 1134 states have internal predecessors, (1291), 272 states have call successors, (272), 216 states have call predecessors, (272), 245 states have return successors, (362), 275 states have call predecessors, (362), 272 states have call successors, (362) [2022-12-14 11:39:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 1925 transitions. [2022-12-14 11:39:43,366 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 1925 transitions. Word has length 42 [2022-12-14 11:39:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:43,366 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 1925 transitions. [2022-12-14 11:39:43,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-14 11:39:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 1925 transitions. [2022-12-14 11:39:43,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 11:39:43,368 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:43,368 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] [2022-12-14 11:39:43,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:39:43,368 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash 525899859, now seen corresponding path program 1 times [2022-12-14 11:39:43,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:43,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87141868] [2022-12-14 11:39:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 11:39:43,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:43,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87141868] [2022-12-14 11:39:43,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87141868] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:43,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482135115] [2022-12-14 11:39:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:43,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:43,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:43,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:43,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:39:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:43,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 11:39:43,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:43,759 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:39:43,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:39:43,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482135115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:39:43,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 11:39:43,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 14 [2022-12-14 11:39:43,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116129100] [2022-12-14 11:39:43,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:39:43,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:39:43,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:43,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:39:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:39:43,762 INFO L87 Difference]: Start difference. First operand 1598 states and 1925 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:39:44,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:44,198 INFO L93 Difference]: Finished difference Result 2454 states and 2977 transitions. [2022-12-14 11:39:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 11:39:44,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) Word has length 64 [2022-12-14 11:39:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:44,202 INFO L225 Difference]: With dead ends: 2454 [2022-12-14 11:39:44,202 INFO L226 Difference]: Without dead ends: 1220 [2022-12-14 11:39:44,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:39:44,205 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 170 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:44,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 147 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:39:44,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-12-14 11:39:44,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 969. [2022-12-14 11:39:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 654 states have (on average 1.172782874617737) internal successors, (767), 691 states have internal predecessors, (767), 164 states have call successors, (164), 141 states have call predecessors, (164), 150 states have return successors, (198), 162 states have call predecessors, (198), 164 states have call successors, (198) [2022-12-14 11:39:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1129 transitions. [2022-12-14 11:39:44,297 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1129 transitions. Word has length 64 [2022-12-14 11:39:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1129 transitions. [2022-12-14 11:39:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:39:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1129 transitions. [2022-12-14 11:39:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 11:39:44,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:44,299 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] [2022-12-14 11:39:44,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:39:44,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 11:39:44,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1938464961, now seen corresponding path program 1 times [2022-12-14 11:39:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:44,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8119215] [2022-12-14 11:39:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:44,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 11:39:44,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:44,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8119215] [2022-12-14 11:39:44,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8119215] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:44,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053331387] [2022-12-14 11:39:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:44,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:44,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:39:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:44,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 11:39:44,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:44,811 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 11:39:44,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:39:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-14 11:39:45,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053331387] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:39:45,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1497724062] [2022-12-14 11:39:45,050 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 11:39:45,050 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:39:45,050 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:39:45,051 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:39:45,051 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:46,593 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-12-14 11:39:46,599 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 119 for LOIs [2022-12-14 11:39:46,897 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 119 for LOIs [2022-12-14 11:39:47,151 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 112 for LOIs [2022-12-14 11:39:47,205 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 136 for LOIs [2022-12-14 11:39:47,221 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:39:54,476 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19562#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 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|) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 2 |old(~waterLevel~0)|) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-12-14 11:39:54,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:39:54,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:39:54,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 19 [2022-12-14 11:39:54,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146747547] [2022-12-14 11:39:54,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:39:54,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 11:39:54,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:39:54,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 11:39:54,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1810, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 11:39:54,480 INFO L87 Difference]: Start difference. First operand 969 states and 1129 transitions. Second operand has 19 states, 17 states have (on average 6.117647058823529) internal successors, (104), 18 states have internal predecessors, (104), 9 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 10 states have call predecessors, (21), 9 states have call successors, (21) [2022-12-14 11:39:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:39:57,822 INFO L93 Difference]: Finished difference Result 3659 states and 4486 transitions. [2022-12-14 11:39:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-12-14 11:39:57,822 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.117647058823529) internal successors, (104), 18 states have internal predecessors, (104), 9 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 10 states have call predecessors, (21), 9 states have call successors, (21) Word has length 67 [2022-12-14 11:39:57,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:39:57,835 INFO L225 Difference]: With dead ends: 3659 [2022-12-14 11:39:57,835 INFO L226 Difference]: Without dead ends: 2692 [2022-12-14 11:39:57,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 181 SyntacticMatches, 6 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8324 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=1961, Invalid=19501, Unknown=0, NotChecked=0, Total=21462 [2022-12-14 11:39:57,841 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 1136 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 3831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 907 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:39:57,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 927 Invalid, 3831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [907 Valid, 2924 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 11:39:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2022-12-14 11:39:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 2457. [2022-12-14 11:39:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 1648 states have (on average 1.1353155339805825) internal successors, (1871), 1742 states have internal predecessors, (1871), 427 states have call successors, (427), 367 states have call predecessors, (427), 381 states have return successors, (540), 415 states have call predecessors, (540), 427 states have call successors, (540) [2022-12-14 11:39:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 2838 transitions. [2022-12-14 11:39:58,077 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 2838 transitions. Word has length 67 [2022-12-14 11:39:58,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:39:58,077 INFO L495 AbstractCegarLoop]: Abstraction has 2457 states and 2838 transitions. [2022-12-14 11:39:58,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.117647058823529) internal successors, (104), 18 states have internal predecessors, (104), 9 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 10 states have call predecessors, (21), 9 states have call successors, (21) [2022-12-14 11:39:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 2838 transitions. [2022-12-14 11:39:58,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:39:58,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:39:58,078 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 11:39:58,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:39:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 11:39:58,279 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:39:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:39:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1511062060, now seen corresponding path program 1 times [2022-12-14 11:39:58,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:39:58,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502355876] [2022-12-14 11:39:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:58,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:39:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 11:39:58,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:39:58,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502355876] [2022-12-14 11:39:58,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502355876] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:39:58,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170424425] [2022-12-14 11:39:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:39:58,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:39:58,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:39:58,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:39:58,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:39:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:39:58,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-14 11:39:58,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:39:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:39:58,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:39:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 11:39:59,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170424425] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:39:59,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [824661708] [2022-12-14 11:39:59,022 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-12-14 11:39:59,023 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:39:59,023 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:39:59,023 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:39:59,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:40:00,640 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 43 for LOIs [2022-12-14 11:40:00,644 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 45 for LOIs [2022-12-14 11:40:00,811 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 42 for LOIs [2022-12-14 11:40:01,019 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 44 for LOIs [2022-12-14 11:40:01,074 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 24 for LOIs [2022-12-14 11:40:01,076 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 24 for LOIs [2022-12-14 11:40:01,079 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 43 for LOIs [2022-12-14 11:40:01,083 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:40:05,304 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29485#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 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|) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= ~head~0.base 0) (= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~0#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|))' at error location [2022-12-14 11:40:05,304 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:40:05,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:40:05,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 12] total 32 [2022-12-14 11:40:05,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100042903] [2022-12-14 11:40:05,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:40:05,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-14 11:40:05,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-14 11:40:05,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=3911, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 11:40:05,309 INFO L87 Difference]: Start difference. First operand 2457 states and 2838 transitions. Second operand has 32 states, 24 states have (on average 4.375) internal successors, (105), 25 states have internal predecessors, (105), 10 states have call successors, (24), 5 states have call predecessors, (24), 13 states have return successors, (27), 15 states have call predecessors, (27), 10 states have call successors, (27) [2022-12-14 11:40:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:08,303 INFO L93 Difference]: Finished difference Result 3728 states and 4398 transitions. [2022-12-14 11:40:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 11:40:08,303 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 4.375) internal successors, (105), 25 states have internal predecessors, (105), 10 states have call successors, (24), 5 states have call predecessors, (24), 13 states have return successors, (27), 15 states have call predecessors, (27), 10 states have call successors, (27) Word has length 73 [2022-12-14 11:40:08,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:08,311 INFO L225 Difference]: With dead ends: 3728 [2022-12-14 11:40:08,311 INFO L226 Difference]: Without dead ends: 2818 [2022-12-14 11:40:08,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 184 SyntacticMatches, 4 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3895 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1301, Invalid=11355, Unknown=0, NotChecked=0, Total=12656 [2022-12-14 11:40:08,315 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 802 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 3419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:08,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 380 Invalid, 3419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 11:40:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2022-12-14 11:40:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2552. [2022-12-14 11:40:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 1707 states have (on average 1.1300527240773286) internal successors, (1929), 1801 states have internal predecessors, (1929), 449 states have call successors, (449), 381 states have call predecessors, (449), 395 states have return successors, (566), 432 states have call predecessors, (566), 449 states have call successors, (566) [2022-12-14 11:40:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 2944 transitions. [2022-12-14 11:40:08,551 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 2944 transitions. Word has length 73 [2022-12-14 11:40:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:08,552 INFO L495 AbstractCegarLoop]: Abstraction has 2552 states and 2944 transitions. [2022-12-14 11:40:08,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 4.375) internal successors, (105), 25 states have internal predecessors, (105), 10 states have call successors, (24), 5 states have call predecessors, (24), 13 states have return successors, (27), 15 states have call predecessors, (27), 10 states have call successors, (27) [2022-12-14 11:40:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 2944 transitions. [2022-12-14 11:40:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 11:40:08,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:40:08,553 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 11:40:08,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:40:08,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:08,754 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:40:08,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:40:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1799881012, now seen corresponding path program 2 times [2022-12-14 11:40:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:40:08,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661296482] [2022-12-14 11:40:08,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:08,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:40:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 11:40:08,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:40:08,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661296482] [2022-12-14 11:40:08,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661296482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:40:08,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:40:08,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:40:08,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721724579] [2022-12-14 11:40:08,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:40:08,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:40:08,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:08,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:40:08,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:40:08,899 INFO L87 Difference]: Start difference. First operand 2552 states and 2944 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 11:40:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:09,163 INFO L93 Difference]: Finished difference Result 4636 states and 5365 transitions. [2022-12-14 11:40:09,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:40:09,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 73 [2022-12-14 11:40:09,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:09,165 INFO L225 Difference]: With dead ends: 4636 [2022-12-14 11:40:09,165 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:40:09,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:40:09,176 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 35 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:09,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 182 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:40:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:40:09,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:40:09,177 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) [2022-12-14 11:40:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:40:09,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-12-14 11:40:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:09,178 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:40:09,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 11:40:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:40:09,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:40:09,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 11:40:09,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:40:09,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 11:40:33,543 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2022-12-14 11:40:33,543 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2022-12-14 11:40:33,543 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 119 130) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse3)) (.cse1 (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse3)) (.cse2 (not (< ~waterLevel~0 3)))) (and (or (not (= |old(~methaneLevelCritical~0)| ~systemActive~0)) .cse0 .cse1 .cse2) (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 .cse1 .cse2)))) [2022-12-14 11:40:33,543 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2022-12-14 11:40:33,543 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)) (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2022-12-14 11:40:33,543 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2022-12-14 11:40:33,543 INFO L895 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)) (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2022-12-14 11:40:33,543 INFO L899 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2022-12-14 11:40:33,544 INFO L895 garLoopResultBuilder]: At program point L69(lines 69 82) the Hoare annotation is: (let ((.cse14 (= ~pumpRunning~0 0)) (.cse17 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (= ~methaneLevelCritical~0 0)) (.cse9 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse13 (= 1 ~systemActive~0)) (.cse10 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse15 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse16 (< ~waterLevel~0 2))) (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~waterLevel~0 1)) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (and .cse17 .cse11 .cse12 .cse9 .cse13 .cse10 .cse15 .cse16)) (.cse7 (and .cse17 .cse14 (<= ~waterLevel~0 1) .cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse8 (and .cse11 .cse14 .cse12 .cse9 .cse13 .cse10 .cse15 .cse16)) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not .cse13)) (.cse2 (not .cse12))) (and (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1) (or .cse0 .cse2 (not (= |old(~pumpRunning~0)| 1)) .cse3 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse4 (= ~pumpRunning~0 1) .cse5) (or .cse6 .cse0 (not (< |old(~waterLevel~0)| 2)) .cse7 .cse2 .cse8) (or .cse6 .cse0 .cse7 .cse2 (and (<= 2 ~waterLevel~0) .cse9 (< ~waterLevel~0 3)) .cse8 .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse2 (and .cse9 .cse10)) (or .cse11 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse2 (= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1))))) [2022-12-14 11:40:33,544 INFO L895 garLoopResultBuilder]: At program point L69-1(lines 54 86) the Hoare annotation is: (let ((.cse8 (= 1 ~systemActive~0)) (.cse17 (not (= ~methaneLevelCritical~0 0))) (.cse18 (= ~pumpRunning~0 1))) (let ((.cse13 (<= ~waterLevel~0 1)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse16 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse5 (or .cse17 .cse18)) (.cse6 (<= 2 ~waterLevel~0)) (.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not .cse8)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse15 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse11 .cse7 .cse9) .cse0 .cse2 (and .cse11 .cse12 .cse7 .cse9) (and .cse10 .cse12 .cse13 .cse7 .cse14) .cse15) (or (and .cse10 .cse11 .cse7 .cse16 .cse9) .cse0 (not (< |old(~waterLevel~0)| 2)) (and .cse10 .cse12 .cse13 .cse7 .cse16 .cse14) .cse17 (and .cse11 .cse12 .cse7 .cse16 .cse9)) (or .cse0 (and .cse7 .cse14 .cse18) .cse17 (and .cse10 .cse11 .cse7 .cse16 .cse9 .cse4) (and .cse11 .cse12 .cse7 .cse16 .cse4) .cse3) (or .cse0 (and .cse5 .cse6 .cse8 .cse9) .cse2 .cse3 .cse4) (or .cse0 .cse17 .cse1 (< ~waterLevel~0 2) .cse15)))) [2022-12-14 11:40:33,544 INFO L895 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= ~pumpRunning~0 0)) (.cse15 (= 1 ~systemActive~0)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (and .cse13 (<= ~waterLevel~0 1) .cse15 .cse14)) (.cse6 (and .cse10 .cse11 .cse12)) (.cse7 (and .cse11 .cse13 .cse12)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (and (or .cse8 (= ~pumpRunning~0 1)) (<= 2 ~waterLevel~0) .cse15 .cse12)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not .cse15)) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 (not (< |old(~waterLevel~0)| 2)) .cse2 .cse7) (or .cse5 .cse6 .cse0 .cse8 .cse9 .cse7 (not (< |old(~waterLevel~0)| 3))) (or (and .cse10 .cse11 .cse12 .cse4) .cse0 .cse9 .cse2 (and .cse13 .cse4) .cse3) (or .cse0 .cse8 .cse1 .cse3 .cse4) (or .cse0 .cse8 .cse9 .cse3 .cse4) (or .cse11 .cse0 .cse2 .cse3 .cse14)))) [2022-12-14 11:40:33,544 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-12-14 11:40:33,544 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse10 (= 1 ~systemActive~0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse8 (and .cse3 .cse4 .cse10 .cse5 .cse6)) (.cse0 (not .cse10)) (.cse1 (not (< |old(~waterLevel~0)| 2))) (.cse9 (not (= ~methaneLevelCritical~0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or .cse0 (and .cse3 .cse4 .cse5 .cse6) .cse2 .cse7) (or .cse8 .cse0 .cse9 .cse7) (or .cse8 .cse0 .cse1 .cse9)))) [2022-12-14 11:40:33,544 INFO L895 garLoopResultBuilder]: At program point L371-1(lines 352 376) the Hoare annotation is: (let ((.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= ~pumpRunning~0 0)) (.cse15 (= 1 ~systemActive~0)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (and .cse13 (<= ~waterLevel~0 1) .cse15 .cse14)) (.cse6 (and .cse10 .cse11 .cse12)) (.cse7 (and .cse11 .cse13 .cse12)) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (and (or .cse8 (= ~pumpRunning~0 1)) (<= 2 ~waterLevel~0) .cse15 .cse12)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not .cse15)) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 (not (< |old(~waterLevel~0)| 2)) .cse2 .cse7) (or .cse5 .cse6 .cse0 .cse8 .cse9 .cse7 (not (< |old(~waterLevel~0)| 3))) (or (and .cse10 .cse11 .cse12 .cse4) .cse0 .cse9 .cse2 (and .cse13 .cse4) .cse3) (or .cse0 .cse8 .cse1 .cse3 .cse4) (or .cse0 .cse8 .cse9 .cse3 .cse4) (or .cse11 .cse0 .cse2 .cse3 .cse14)))) [2022-12-14 11:40:33,545 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2022-12-14 11:40:33,545 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (not (< |old(~waterLevel~0)| 2)) .cse1) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))))) [2022-12-14 11:40:33,545 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 294 317) the Hoare annotation is: (let ((.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= 1 ~systemActive~0)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse9 (or .cse10 (= ~waterLevel~0 1)))) (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse3 (and .cse6 .cse7 .cse10 .cse8 .cse9)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not .cse7)) (.cse5 (not (< |old(~waterLevel~0)| 2))) (.cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse3) (or .cse0 .cse5 (and .cse6 .cse7 .cse8 .cse9) .cse1) (or .cse0 .cse5 .cse4 (and .cse6 .cse8 .cse9)))))) [2022-12-14 11:40:33,545 INFO L899 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2022-12-14 11:40:33,545 INFO L895 garLoopResultBuilder]: At program point L360(lines 360 368) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= |old(~pumpRunning~0)| 0)) (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))))) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2022-12-14 11:40:33,545 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2022-12-14 11:40:33,545 INFO L895 garLoopResultBuilder]: At program point L63(lines 63 83) the Hoare annotation is: (let ((.cse22 (= ~methaneLevelCritical~0 0))) (let ((.cse8 (not .cse22)) (.cse17 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|)) (.cse18 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse15 (< ~waterLevel~0 2)) (.cse16 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse19 (= ~pumpRunning~0 0)) (.cse20 (<= ~waterLevel~0 1)) (.cse21 (= 1 ~systemActive~0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (and .cse16 .cse19 .cse22 .cse20 .cse21 .cse13)) (.cse6 (and .cse17 .cse19 .cse22 .cse14 .cse21 .cse18 .cse15)) (.cse9 (and .cse16 .cse17 .cse22 .cse14 .cse21 .cse18 .cse15)) (.cse7 (not (< |old(~waterLevel~0)| 2))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~waterLevel~0 1)) (.cse10 (or .cse8 (= ~pumpRunning~0 1))) (.cse11 (<= 2 ~waterLevel~0)) (.cse0 (not .cse21)) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse12 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse7 .cse8 .cse9) (or .cse5 .cse6 .cse0 (and .cse10 .cse11) .cse8 .cse9 .cse12) (or .cse0 .cse2 .cse3 .cse13 .cse4) (or .cse0 .cse7 .cse14 .cse8) (or .cse0 .cse8 .cse1 .cse15 .cse12) (or .cse0 .cse8 .cse3 .cse4 (and .cse14 .cse13)) (or (and .cse16 .cse17 .cse14 .cse18) (and .cse16 .cse19 .cse20 .cse14 .cse21 .cse13) (and .cse10 .cse11 .cse14 .cse13) .cse0 .cse2 (and .cse17 .cse19 .cse14 .cse18) .cse12))))) [2022-12-14 11:40:33,545 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2022-12-14 11:40:33,545 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2022-12-14 11:40:33,545 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 189 218) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 131 139) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L895 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 2)) (.cse4 (= ~methaneLevelCritical~0 ~systemActive~0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 .cse3) (and .cse4 (= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 .cse1 .cse2 (< ~waterLevel~0 3) (= ~pumpRunning~0 1)))) [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L895 garLoopResultBuilder]: At program point L275(lines 275 282) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-14 11:40:33,546 INFO L902 garLoopResultBuilder]: At program point L275-2(lines 275 282) the Hoare annotation is: true [2022-12-14 11:40:33,546 INFO L895 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse3 (< ~waterLevel~0 2)) (.cse5 (= ~methaneLevelCritical~0 ~systemActive~0)) (.cse4 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2) (and .cse5 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse1 .cse2))) [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2022-12-14 11:40:33,546 INFO L899 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2022-12-14 11:40:33,547 INFO L902 garLoopResultBuilder]: At program point L545(lines 486 549) the Hoare annotation is: true [2022-12-14 11:40:33,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (< ~waterLevel~0 3))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2022-12-14 11:40:33,547 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2022-12-14 11:40:33,547 INFO L899 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (< ~waterLevel~0 3))) (or (and (= ~methaneLevelCritical~0 ~systemActive~0) .cse0 .cse1 .cse2) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2))) [2022-12-14 11:40:33,547 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 107 118) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse1 .cse2))) [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (< ~waterLevel~0 2))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not .cse5)) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= ~waterLevel~0 1))) (or .cse3 .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse3 .cse1 .cse4 .cse5 .cse2) (or .cse0 .cse1 .cse6 (not (< ~waterLevel~0 3)))))) [2022-12-14 11:40:33,547 INFO L899 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 326 350) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= 2 ~waterLevel~0))) (.cse7 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (< ~waterLevel~0 2))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse2 .cse6 .cse4))) [2022-12-14 11:40:33,547 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| 0)) (.cse6 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) .cse6 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0))) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not .cse5)) (.cse1 (not .cse6)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (< 0 ~waterLevel~0)) (not (< ~waterLevel~0 3))) (or .cse0 .cse1 (not (< ~waterLevel~0 2)) .cse4) (or (not (= ~waterLevel~0 1)) .cse1 .cse5 .cse2) (or .cse3 .cse1 (not (= 2 ~waterLevel~0)) .cse4)))) [2022-12-14 11:40:33,547 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2022-12-14 11:40:33,548 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2022-12-14 11:40:33,548 INFO L895 garLoopResultBuilder]: At program point L330(lines 330 347) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= 2 ~waterLevel~0))) (.cse7 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (< ~waterLevel~0 2))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse2 .cse6 .cse4))) [2022-12-14 11:40:33,548 INFO L895 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4 .cse1 (not (< ~waterLevel~0 3))) (or .cse3 .cse0 (not (= 2 ~waterLevel~0)) .cse4 .cse5) (or .cse0 .cse5 .cse2))) [2022-12-14 11:40:33,548 INFO L895 garLoopResultBuilder]: At program point L390-1(line 390) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 1) (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret15#1| ~methaneLevelCritical~0))) (.cse3 (and (not (= |old(~pumpRunning~0)| 0)) (< 0 ~waterLevel~0))) (.cse4 (not (< ~waterLevel~0 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse5 (not (<= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5) (or .cse0 .cse2 .cse6 .cse3 .cse4) (or .cse0 .cse6 .cse5))) [2022-12-14 11:40:33,548 INFO L902 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2022-12-14 11:40:33,548 INFO L899 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2022-12-14 11:40:33,548 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2022-12-14 11:40:33,548 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 410 420) the Hoare annotation is: true [2022-12-14 11:40:33,550 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:40:33,552 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:40:33,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:40:33 BoogieIcfgContainer [2022-12-14 11:40:33,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:40:33,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:40:33,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:40:33,578 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:40:33,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:39:27" (3/4) ... [2022-12-14 11:40:33,580 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-12-14 11:40:33,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-12-14 11:40:33,588 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-12-14 11:40:33,588 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 11:40:33,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 11:40:33,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:40:33,589 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:40:33,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || (((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == systemActive)) || ((pumpRunning == \old(pumpRunning) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) [2022-12-14 11:40:33,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1) && ((((((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel)))) && (((((((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3))) && ((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel)) && waterLevel == 1) || !(1 == systemActive)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) || !(\old(waterLevel) == 2))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) [2022-12-14 11:40:33,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) || !(methaneLevelCritical == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == systemActive))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) || !(methaneLevelCritical == systemActive))) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == 0)) [2022-12-14 11:40:33,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) < 3)) [2022-12-14 11:40:33,606 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1) && ((((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2))) && (((((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(1 == systemActive)) || ((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || methaneLevelCritical == tmp) || !(methaneLevelCritical == 0))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || waterLevel == 1) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && (((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && methaneLevelCritical == tmp) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) [2022-12-14 11:40:33,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1) && (((((((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp___0 <= 1) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)))) && (((((!(1 == systemActive) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel == 1)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel == 1)) || !(\old(waterLevel) == 2))) && ((((!(1 == systemActive) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3)) [2022-12-14 11:40:33,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == 1) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || (!(\old(pumpRunning) == 0) && 0 < waterLevel)) || !(waterLevel < 3)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(waterLevel <= 1))) && ((((!(1 == systemActive) || ((pumpRunning == 0 && tmp == 1) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(methaneLevelCritical == systemActive)) || (!(\old(pumpRunning) == 0) && 0 < waterLevel)) || !(waterLevel < 3))) && ((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 1)) [2022-12-14 11:40:33,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || waterLevel == 1) || pumpRunning == 1) || !(2 <= \old(waterLevel)))) && ((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || (((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2))) && (((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel < 3)) || (((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(\old(waterLevel) < 3))) && (((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (methaneLevelCritical == tmp && tmp___0 <= 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || tmp___0 == 1) [2022-12-14 11:40:33,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) < 3))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) [2022-12-14 11:40:33,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:40:33,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:40:33,620 INFO L158 Benchmark]: Toolchain (without parser) took 66675.56ms. Allocated memory was 104.9MB in the beginning and 446.7MB in the end (delta: 341.8MB). Free memory was 70.4MB in the beginning and 288.8MB in the end (delta: -218.4MB). Peak memory consumption was 126.5MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,621 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:40:33,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.70ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 51.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.92ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 49.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,621 INFO L158 Benchmark]: Boogie Preprocessor took 17.75ms. Allocated memory is still 104.9MB. Free memory was 49.5MB in the beginning and 48.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,621 INFO L158 Benchmark]: RCFGBuilder took 416.61ms. Allocated memory was 104.9MB in the beginning and 146.8MB in the end (delta: 41.9MB). Free memory was 48.0MB in the beginning and 103.6MB in the end (delta: -55.6MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,621 INFO L158 Benchmark]: TraceAbstraction took 65879.05ms. Allocated memory was 146.8MB in the beginning and 446.7MB in the end (delta: 299.9MB). Free memory was 102.8MB in the beginning and 294.1MB in the end (delta: -191.3MB). Peak memory consumption was 280.1MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,622 INFO L158 Benchmark]: Witness Printer took 42.60ms. Allocated memory is still 446.7MB. Free memory was 294.1MB in the beginning and 288.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 11:40:33,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.70ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 51.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.92ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 49.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.75ms. Allocated memory is still 104.9MB. Free memory was 49.5MB in the beginning and 48.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.61ms. Allocated memory was 104.9MB in the beginning and 146.8MB in the end (delta: 41.9MB). Free memory was 48.0MB in the beginning and 103.6MB in the end (delta: -55.6MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * TraceAbstraction took 65879.05ms. Allocated memory was 146.8MB in the beginning and 446.7MB in the end (delta: 299.9MB). Free memory was 102.8MB in the beginning and 294.1MB in the end (delta: -191.3MB). Peak memory consumption was 280.1MB. Max. memory is 16.1GB. * Witness Printer took 42.60ms. Allocated memory is still 446.7MB. Free memory was 294.1MB in the beginning and 288.8MB in the end (delta: 5.2MB). 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: 65.8s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 24.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3865 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3811 mSDsluCounter, 3501 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2692 mSDsCounter, 2594 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8876 IncrementalHoareTripleChecker+Invalid, 11470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2594 mSolverCounterUnsat, 809 mSDtfsCounter, 8876 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 977 GetRequests, 526 SyntacticMatches, 15 SemanticMatches, 436 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17075 ImplicationChecksByTransitivity, 25.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2552occurred in iteration=11, InterpolantAutomatonStates: 296, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 1170 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 5820 PreInvPairs, 6877 NumberOfFragments, 2691 HoareAnnotationTreeSize, 5820 FomulaSimplifications, 89519 FormulaSimplificationTreeSizeReduction, 6.5s HoareSimplificationTime, 37 FomulaSimplificationsInter, 332443 FormulaSimplificationTreeSizeReductionInter, 17.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 751 NumberOfCodeBlocks, 751 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 911 ConstructedInterpolants, 0 QuantifiedInterpolants, 2763 SizeOfPredicates, 49 NumberOfNonLiveVariables, 1141 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 216/283 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: ((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1) && (((((((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) || (((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3))) && (((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && methaneLevelCritical == tmp) && tmp___0 <= 1) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)))) && (((((!(1 == systemActive) || ((methaneLevelCritical == tmp && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel == 1)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && tmp___0 <= 1) && waterLevel == 1)) || !(\old(waterLevel) == 2))) && ((((!(1 == systemActive) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) || !(methaneLevelCritical == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == systemActive))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 == waterLevel)) || !(methaneLevelCritical == systemActive))) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel < 2)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 2) || (((methaneLevelCritical == systemActive && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 2)) || (((methaneLevelCritical == systemActive && 2 == waterLevel) && 1 == systemActive) && splverifierCounter == 0)) || ((((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) && pumpRunning == 1) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1) && ((((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2))) && (((((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methaneLevelCritical == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(1 == systemActive)) || ((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel)) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || methaneLevelCritical == tmp) || !(methaneLevelCritical == 0))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || waterLevel < 2) || !(\old(waterLevel) < 3))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || waterLevel == 1) || (methaneLevelCritical == tmp && \old(waterLevel) == waterLevel))) && (((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && methaneLevelCritical == tmp) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && methaneLevelCritical == tmp) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == tmp) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) < 3)) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || waterLevel == 1) || pumpRunning == 1) || !(2 <= \old(waterLevel)))) && ((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || (((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2))) && (((((((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2) || !(1 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((2 <= waterLevel && methaneLevelCritical == tmp) && waterLevel < 3)) || (((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methaneLevelCritical == 0) && methaneLevelCritical == tmp) && 1 == systemActive) && tmp___0 <= 1) && waterLevel <= \old(waterLevel)) && waterLevel < 2)) || !(\old(waterLevel) < 3))) && (((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (methaneLevelCritical == tmp && tmp___0 <= 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || tmp___0 == 1) - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 1 - 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) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || waterLevel == 1) && ((((((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel)))) && (((((((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && \old(waterLevel) == waterLevel) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) < 3))) && ((((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && waterLevel <= \old(waterLevel)) && waterLevel == 1) || !(1 == systemActive)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(methaneLevelCritical == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) || !(\old(waterLevel) == 2))) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((((!(methaneLevelCritical == 0) || pumpRunning == 1) && 2 <= waterLevel) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(waterLevel) == 2)) || waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) < 3))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(\old(waterLevel) == 2)) || ((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || (((pumpRunning == \old(pumpRunning) && 1 == systemActive) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || !(\old(waterLevel) < 2)) || !(methaneLevelCritical == systemActive)) || ((pumpRunning == \old(pumpRunning) && waterLevel <= \old(waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == 1) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || (!(\old(pumpRunning) == 0) && 0 < waterLevel)) || !(waterLevel < 3)) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(waterLevel <= 1))) && ((((!(1 == systemActive) || ((pumpRunning == 0 && tmp == 1) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) || !(methaneLevelCritical == systemActive)) || (!(\old(pumpRunning) == 0) && 0 < waterLevel)) || !(waterLevel < 3))) && ((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 1)) RESULT: Ultimate proved your program to be correct! [2022-12-14 11:40:33,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5601cfbf-5a00-44e7-b8d7-ee6696dedb87/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE