./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 f148fc9ce65faa66ebebdaf3c4bc47bc200a3ebfe7e123b8276da7aa11779ba7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:26:15,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:26:15,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:26:15,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:26:15,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:26:15,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:26:15,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:26:15,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:26:15,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:26:15,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:26:15,212 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:26:15,212 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:26:15,213 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:26:15,213 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:26:15,214 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:26:15,214 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:26:15,215 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:26:15,215 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:26:15,216 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:26:15,217 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:26:15,217 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:26:15,218 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:26:15,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:26:15,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:26:15,220 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:26:15,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:26:15,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:26:15,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:26:15,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:26:15,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:26:15,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:26:15,222 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:26:15,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:26:15,223 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:26:15,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:26:15,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:26:15,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:26:15,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:26:15,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:26:15,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:26:15,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:26:15,225 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:26:15,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:26:15,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:26:15,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:26:15,225 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:26:15,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:26:15,226 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f148fc9ce65faa66ebebdaf3c4bc47bc200a3ebfe7e123b8276da7aa11779ba7 [2023-12-02 16:26:15,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:26:15,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:26:15,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:26:15,460 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:26:15,460 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:26:15,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c [2023-12-02 16:26:18,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:26:18,400 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:26:18,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c [2023-12-02 16:26:18,415 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/data/078ced055/9720e69339944215b63d7f2dad858a73/FLAGfca381775 [2023-12-02 16:26:18,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/data/078ced055/9720e69339944215b63d7f2dad858a73 [2023-12-02 16:26:18,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:26:18,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:26:18,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:26:18,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:26:18,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:26:18,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493bf881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18, skipping insertion in model container [2023-12-02 16:26:18,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,484 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:26:18,659 WARN L240 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_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c[4901,4914] [2023-12-02 16:26:18,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:26:18,735 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:26:18,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-02 16:26:18,744 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [135] [2023-12-02 16:26:18,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [163] [2023-12-02 16:26:18,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [201] [2023-12-02 16:26:18,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [300] [2023-12-02 16:26:18,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [309] [2023-12-02 16:26:18,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [675] [2023-12-02 16:26:18,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [852] [2023-12-02 16:26:18,759 WARN L240 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_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/sv-benchmarks/c/product-lines/minepump_spec1_product16.cil.c[4901,4914] [2023-12-02 16:26:18,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:26:18,817 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:26:18,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18 WrapperNode [2023-12-02 16:26:18,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:26:18,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:26:18,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:26:18,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:26:18,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,862 INFO L138 Inliner]: procedures = 53, calls = 97, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 145 [2023-12-02 16:26:18,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:26:18,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:26:18,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:26:18,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:26:18,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:26:18,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:26:18,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:26:18,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:26:18,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (1/1) ... [2023-12-02 16:26:18,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:26:18,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:26:18,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:26:18,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:26:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:26:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 16:26:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 16:26:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 16:26:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 16:26:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-02 16:26:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-02 16:26:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 16:26:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 16:26:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 16:26:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 16:26:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-02 16:26:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-02 16:26:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 16:26:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 16:26:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:26:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 16:26:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 16:26:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:26:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:26:19,031 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:26:19,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:26:19,240 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:26:19,311 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:26:19,311 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 16:26:19,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:26:19 BoogieIcfgContainer [2023-12-02 16:26:19,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:26:19,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:26:19,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:26:19,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:26:19,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:26:18" (1/3) ... [2023-12-02 16:26:19,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd26907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:26:19, skipping insertion in model container [2023-12-02 16:26:19,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:26:18" (2/3) ... [2023-12-02 16:26:19,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd26907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:26:19, skipping insertion in model container [2023-12-02 16:26:19,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:26:19" (3/3) ... [2023-12-02 16:26:19,322 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product16.cil.c [2023-12-02 16:26:19,342 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:26:19,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:26:19,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:26:19,385 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=LoopHeads, 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;@30535a63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:26:19,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:26:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 46 states have internal predecessors, (55), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 16:26:19,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 16:26:19,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:26:19,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:26:19,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:26:19,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:26:19,406 INFO L85 PathProgramCache]: Analyzing trace with hash 349755230, now seen corresponding path program 1 times [2023-12-02 16:26:19,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:26:19,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098764071] [2023-12-02 16:26:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:19,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:26:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:19,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:26:19,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:26:19,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098764071] [2023-12-02 16:26:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098764071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:26:19,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:26:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:26:19,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304693606] [2023-12-02 16:26:19,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:26:19,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:26:19,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:26:19,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:26:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:26:19,602 INFO L87 Difference]: Start difference. First operand has 62 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 46 states have internal predecessors, (55), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-12-02 16:26:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:26:19,659 INFO L93 Difference]: Finished difference Result 122 states and 163 transitions. [2023-12-02 16:26:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:26:19,662 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2023-12-02 16:26:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:26:19,668 INFO L225 Difference]: With dead ends: 122 [2023-12-02 16:26:19,668 INFO L226 Difference]: Without dead ends: 57 [2023-12-02 16:26:19,672 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 [2023-12-02 16:26:19,675 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:26:19,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:26:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-02 16:26:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-02 16:26:19,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 42 states have internal predecessors, (47), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 16:26:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2023-12-02 16:26:19,710 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 16 [2023-12-02 16:26:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:26:19,711 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2023-12-02 16:26:19,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-12-02 16:26:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2023-12-02 16:26:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 16:26:19,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:26:19,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:26:19,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:26:19,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:26:19,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:26:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash -4000976, now seen corresponding path program 1 times [2023-12-02 16:26:19,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:26:19,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645689774] [2023-12-02 16:26:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:19,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:26:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:26:19,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:26:19,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645689774] [2023-12-02 16:26:19,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645689774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:26:19,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:26:19,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:26:19,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061860425] [2023-12-02 16:26:19,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:26:19,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:26:19,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:26:19,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:26:19,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:26:19,811 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-12-02 16:26:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:26:19,846 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2023-12-02 16:26:19,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:26:19,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2023-12-02 16:26:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:26:19,848 INFO L225 Difference]: With dead ends: 86 [2023-12-02 16:26:19,848 INFO L226 Difference]: Without dead ends: 49 [2023-12-02 16:26:19,849 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 [2023-12-02 16:26:19,851 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 14 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:26:19,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 80 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:26:19,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-02 16:26:19,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-02 16:26:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 37 states have internal predecessors, (41), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 16:26:19,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2023-12-02 16:26:19,861 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 17 [2023-12-02 16:26:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:26:19,862 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-12-02 16:26:19,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-12-02 16:26:19,862 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-12-02 16:26:19,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 16:26:19,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:26:19,864 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] [2023-12-02 16:26:19,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:26:19,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:26:19,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:26:19,865 INFO L85 PathProgramCache]: Analyzing trace with hash 980170128, now seen corresponding path program 1 times [2023-12-02 16:26:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:26:19,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537763196] [2023-12-02 16:26:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:19,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:26:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:26:19,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:26:19,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537763196] [2023-12-02 16:26:19,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537763196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:26:19,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:26:19,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:26:19,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276109423] [2023-12-02 16:26:19,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:26:19,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:26:19,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:26:19,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:26:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:26:19,945 INFO L87 Difference]: Start difference. First operand 49 states and 61 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) [2023-12-02 16:26:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:26:20,003 INFO L93 Difference]: Finished difference Result 143 states and 180 transitions. [2023-12-02 16:26:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:26:20,004 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 [2023-12-02 16:26:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:26:20,006 INFO L225 Difference]: With dead ends: 143 [2023-12-02 16:26:20,006 INFO L226 Difference]: Without dead ends: 96 [2023-12-02 16:26:20,007 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 [2023-12-02 16:26:20,008 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 55 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:26:20,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 102 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:26:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-02 16:26:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2023-12-02 16:26:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 69 states have internal predecessors, (77), 20 states have call successors, (20), 14 states have call predecessors, (20), 14 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 16:26:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2023-12-02 16:26:20,049 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 20 [2023-12-02 16:26:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:26:20,049 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2023-12-02 16:26:20,049 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) [2023-12-02 16:26:20,050 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2023-12-02 16:26:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 16:26:20,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:26:20,051 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] [2023-12-02 16:26:20,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:26:20,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:26:20,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:26:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash -276098644, now seen corresponding path program 1 times [2023-12-02 16:26:20,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:26:20,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512614234] [2023-12-02 16:26:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:20,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:26:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:26:20,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:26:20,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512614234] [2023-12-02 16:26:20,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512614234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:26:20,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:26:20,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 16:26:20,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272360068] [2023-12-02 16:26:20,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:26:20,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:26:20,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:26:20,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:26:20,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:26:20,171 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 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) [2023-12-02 16:26:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:26:20,227 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2023-12-02 16:26:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:26:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 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 23 [2023-12-02 16:26:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:26:20,228 INFO L225 Difference]: With dead ends: 160 [2023-12-02 16:26:20,228 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:26:20,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:26:20,231 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 24 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:26:20,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 53 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:26:20,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:26:20,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:26:20,233 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) [2023-12-02 16:26:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:26:20,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-12-02 16:26:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:26:20,233 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:26:20,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 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) [2023-12-02 16:26:20,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:26:20,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:26:20,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:26:20,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:26:20,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:26:20,394 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 765 772) no Hoare annotation was computed. [2023-12-02 16:26:20,394 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 765 772) the Hoare annotation is: true [2023-12-02 16:26:20,394 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 82 93) the Hoare annotation is: true [2023-12-02 16:26:20,395 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2023-12-02 16:26:20,395 INFO L895 garLoopResultBuilder]: At program point L729(line 729) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:26:20,395 INFO L895 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:26:20,395 INFO L895 garLoopResultBuilder]: At program point L721(line 721) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-12-02 16:26:20,395 INFO L899 garLoopResultBuilder]: For program point L721-1(line 721) no Hoare annotation was computed. [2023-12-02 16:26:20,395 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:26:20,395 INFO L899 garLoopResultBuilder]: For program point L734-1(lines 715 739) no Hoare annotation was computed. [2023-12-02 16:26:20,395 INFO L899 garLoopResultBuilder]: For program point L305(line 305) no Hoare annotation was computed. [2023-12-02 16:26:20,396 INFO L895 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:26:20,396 INFO L899 garLoopResultBuilder]: For program point L144-1(line 144) no Hoare annotation was computed. [2023-12-02 16:26:20,396 INFO L899 garLoopResultBuilder]: For program point L694-1(lines 694 700) no Hoare annotation was computed. [2023-12-02 16:26:20,396 INFO L899 garLoopResultBuilder]: For program point L723(lines 723 731) no Hoare annotation was computed. [2023-12-02 16:26:20,398 INFO L899 garLoopResultBuilder]: For program point L719(lines 719 736) no Hoare annotation was computed. [2023-12-02 16:26:20,398 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 683 706) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-12-02 16:26:20,399 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2023-12-02 16:26:20,399 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 159) no Hoare annotation was computed. [2023-12-02 16:26:20,399 INFO L899 garLoopResultBuilder]: For program point L146-1(lines 138 162) no Hoare annotation was computed. [2023-12-02 16:26:20,399 INFO L899 garLoopResultBuilder]: For program point L687-1(lines 686 705) no Hoare annotation was computed. [2023-12-02 16:26:20,399 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 683 706) no Hoare annotation was computed. [2023-12-02 16:26:20,399 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 305) no Hoare annotation was computed. [2023-12-02 16:26:20,400 INFO L899 garLoopResultBuilder]: For program point L225(line 225) no Hoare annotation was computed. [2023-12-02 16:26:20,400 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 204 233) no Hoare annotation was computed. [2023-12-02 16:26:20,400 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 222) no Hoare annotation was computed. [2023-12-02 16:26:20,400 INFO L902 garLoopResultBuilder]: At program point L218-1(lines 218 222) the Hoare annotation is: true [2023-12-02 16:26:20,400 INFO L902 garLoopResultBuilder]: At program point L214-2(lines 214 228) the Hoare annotation is: true [2023-12-02 16:26:20,400 INFO L902 garLoopResultBuilder]: At program point L210(line 210) the Hoare annotation is: true [2023-12-02 16:26:20,400 INFO L899 garLoopResultBuilder]: For program point L210-1(line 210) no Hoare annotation was computed. [2023-12-02 16:26:20,400 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 204 233) the Hoare annotation is: true [2023-12-02 16:26:20,400 INFO L899 garLoopResultBuilder]: For program point L229(lines 204 233) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 94 102) the Hoare annotation is: true [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 294) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point L287-2(lines 287 294) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point L833(lines 833 839) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point L833-1(lines 833 839) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point L916(lines 853 920) no Hoare annotation was computed. [2023-12-02 16:26:20,401 INFO L899 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2023-12-02 16:26:20,402 INFO L899 garLoopResultBuilder]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2023-12-02 16:26:20,402 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:26:20,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:26:20,402 INFO L895 garLoopResultBuilder]: At program point L913(lines 862 914) the Hoare annotation is: false [2023-12-02 16:26:20,402 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:26:20,402 INFO L899 garLoopResultBuilder]: For program point L901(lines 901 907) no Hoare annotation was computed. [2023-12-02 16:26:20,403 INFO L895 garLoopResultBuilder]: At program point L835(line 835) the Hoare annotation is: false [2023-12-02 16:26:20,403 INFO L895 garLoopResultBuilder]: At program point L901-2(lines 893 908) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:26:20,403 INFO L899 garLoopResultBuilder]: For program point L864(lines 863 912) no Hoare annotation was computed. [2023-12-02 16:26:20,403 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 908) no Hoare annotation was computed. [2023-12-02 16:26:20,403 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:26:20,403 INFO L895 garLoopResultBuilder]: At program point L910(lines 863 912) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 16:26:20,404 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2023-12-02 16:26:20,404 INFO L899 garLoopResultBuilder]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2023-12-02 16:26:20,404 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2023-12-02 16:26:20,404 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 70 81) the Hoare annotation is: true [2023-12-02 16:26:20,404 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 707 713) no Hoare annotation was computed. [2023-12-02 16:26:20,404 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 707 713) the Hoare annotation is: true [2023-12-02 16:26:20,405 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 773 783) no Hoare annotation was computed. [2023-12-02 16:26:20,405 INFO L902 garLoopResultBuilder]: At program point L778(line 778) the Hoare annotation is: true [2023-12-02 16:26:20,405 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 773 783) the Hoare annotation is: true [2023-12-02 16:26:20,405 INFO L899 garLoopResultBuilder]: For program point L778-1(line 778) no Hoare annotation was computed. [2023-12-02 16:26:20,407 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 16:26:20,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:26:20,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:26:20 BoogieIcfgContainer [2023-12-02 16:26:20,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:26:20,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:26:20,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:26:20,421 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:26:20,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:26:19" (3/4) ... [2023-12-02 16:26:20,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:26:20,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-12-02 16:26:20,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 16:26:20,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 16:26:20,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 16:26:20,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-12-02 16:26:20,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 16:26:20,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-12-02 16:26:20,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-12-02 16:26:20,433 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-12-02 16:26:20,434 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-02 16:26:20,434 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 16:26:20,435 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:26:20,435 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:26:20,456 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) [2023-12-02 16:26:20,481 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) [2023-12-02 16:26:20,518 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:26:20,518 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:26:20,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:26:20,519 INFO L158 Benchmark]: Toolchain (without parser) took 2087.86ms. Allocated memory is still 144.7MB. Free memory was 103.9MB in the beginning and 78.0MB in the end (delta: 26.0MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-12-02 16:26:20,519 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:26:20,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.59ms. Allocated memory is still 144.7MB. Free memory was 103.3MB in the beginning and 107.6MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 16:26:20,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.11ms. Allocated memory is still 144.7MB. Free memory was 106.9MB in the beginning and 105.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:26:20,520 INFO L158 Benchmark]: Boogie Preprocessor took 25.82ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:26:20,521 INFO L158 Benchmark]: RCFGBuilder took 423.21ms. Allocated memory is still 144.7MB. Free memory was 103.4MB in the beginning and 82.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 16:26:20,521 INFO L158 Benchmark]: TraceAbstraction took 1104.02ms. Allocated memory is still 144.7MB. Free memory was 81.8MB in the beginning and 84.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:26:20,521 INFO L158 Benchmark]: Witness Printer took 98.00ms. Allocated memory is still 144.7MB. Free memory was 84.2MB in the beginning and 78.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 16:26:20,523 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.59ms. Allocated memory is still 144.7MB. Free memory was 103.3MB in the beginning and 107.6MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.11ms. Allocated memory is still 144.7MB. Free memory was 106.9MB in the beginning and 105.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.82ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.21ms. Allocated memory is still 144.7MB. Free memory was 103.4MB in the beginning and 82.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1104.02ms. Allocated memory is still 144.7MB. Free memory was 81.8MB in the beginning and 84.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.00ms. Allocated memory is still 144.7MB. Free memory was 84.2MB in the beginning and 78.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [135] - GenericResultAtLocation [Line: 163]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [163] - GenericResultAtLocation [Line: 201]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [201] - GenericResultAtLocation [Line: 300]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [300] - GenericResultAtLocation [Line: 309]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [309] - GenericResultAtLocation [Line: 675]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [675] - GenericResultAtLocation [Line: 852]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [852] * 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: 305]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 297 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 193 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 129 PreInvPairs, 139 NumberOfFragments, 77 HoareAnnotationTreeSize, 129 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 185 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((pumpRunning == 0) && (splverifierCounter == 0)) - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) RESULT: Ultimate proved your program to be correct! [2023-12-02 16:26:20,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acfdfb5-5fc6-4e4c-9131-0e3bebc87b9a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE