./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire --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 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:14,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:14,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:35:14,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:14,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:14,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:14,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:14,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:14,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:14,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:14,900 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:14,901 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:14,901 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:14,902 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:14,902 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:14,903 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:14,903 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:14,904 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:14,905 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:14,905 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:14,906 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:14,907 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:14,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:14,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:14,909 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:14,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:14,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:14,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:14,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:14,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:14,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:14,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:14,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:14,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:14,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:14,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:14,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:14,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:14,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:14,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:14,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:14,917 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:14,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:14,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:14,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:14,918 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:14,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:14,919 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_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de [2023-11-23 20:35:15,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:15,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:15,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:15,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:15,290 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:15,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2023-11-23 20:35:18,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:18,697 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:18,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2023-11-23 20:35:18,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/data/10e72a9b7/40c878f8f7104e638fd1c301080a4c38/FLAG645511567 [2023-11-23 20:35:18,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/data/10e72a9b7/40c878f8f7104e638fd1c301080a4c38 [2023-11-23 20:35:18,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:18,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:18,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:18,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:18,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:18,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:18" (1/1) ... [2023-11-23 20:35:18,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fbe2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:18, skipping insertion in model container [2023-11-23 20:35:18,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:18" (1/1) ... [2023-11-23 20:35:18,800 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:19,054 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_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c[7019,7032] [2023-11-23 20:35:19,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:19,189 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:19,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-23 20:35:19,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2023-11-23 20:35:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] [2023-11-23 20:35:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2023-11-23 20:35:19,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] [2023-11-23 20:35:19,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] [2023-11-23 20:35:19,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] [2023-11-23 20:35:19,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] [2023-11-23 20:35:19,256 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_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c[7019,7032] [2023-11-23 20:35:19,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:19,320 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:19,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19 WrapperNode [2023-11-23 20:35:19,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:19,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:19,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:19,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:19,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,373 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 188 [2023-11-23 20:35:19,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:19,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:19,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:19,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:19,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:19,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:19,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:19,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:19,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (1/1) ... [2023-11-23 20:35:19,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:19,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:19,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:19,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 20:35:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 20:35:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 20:35:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 20:35:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 20:35:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 20:35:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 20:35:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 20:35:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 20:35:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 20:35:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 20:35:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 20:35:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-23 20:35:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-23 20:35:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 20:35:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 20:35:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:19,598 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:19,600 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:19,903 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:20,044 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:20,044 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:35:20,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:20 BoogieIcfgContainer [2023-11-23 20:35:20,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:20,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:20,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:20,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:20,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:18" (1/3) ... [2023-11-23 20:35:20,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a866f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:20, skipping insertion in model container [2023-11-23 20:35:20,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:19" (2/3) ... [2023-11-23 20:35:20,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a866f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:20, skipping insertion in model container [2023-11-23 20:35:20,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:20" (3/3) ... [2023-11-23 20:35:20,056 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2023-11-23 20:35:20,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:20,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:20,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:20,133 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;@4424ed12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:20,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 47 states have internal predecessors, (54), 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) [2023-11-23 20:35:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:35:20,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:20,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:20,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:20,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash 151782703, now seen corresponding path program 1 times [2023-11-23 20:35:20,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:20,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615335992] [2023-11-23 20:35:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:20,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:20,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:20,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615335992] [2023-11-23 20:35:20,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615335992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:20,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:20,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:35:20,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50379557] [2023-11-23 20:35:20,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:20,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:35:20,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:35:20,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:20,394 INFO L87 Difference]: Start difference. First operand has 63 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 47 states have internal predecessors, (54), 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 6.0) 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) [2023-11-23 20:35:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:20,515 INFO L93 Difference]: Finished difference Result 124 states and 165 transitions. [2023-11-23 20:35:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:35:20,518 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 [2023-11-23 20:35:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:20,530 INFO L225 Difference]: With dead ends: 124 [2023-11-23 20:35:20,530 INFO L226 Difference]: Without dead ends: 58 [2023-11-23 20:35:20,535 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 [2023-11-23 20:35:20,541 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:20,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-23 20:35:20,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-23 20:35:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 43 states have internal predecessors, (46), 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) [2023-11-23 20:35:20,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2023-11-23 20:35:20,605 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 16 [2023-11-23 20:35:20,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:20,606 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2023-11-23 20:35:20,607 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) [2023-11-23 20:35:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2023-11-23 20:35:20,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:35:20,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:20,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:20,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:20,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:20,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 374561926, now seen corresponding path program 1 times [2023-11-23 20:35:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112968326] [2023-11-23 20:35:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:20,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:20,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:20,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112968326] [2023-11-23 20:35:20,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112968326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:20,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:20,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:20,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850235323] [2023-11-23 20:35:20,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:20,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:35:20,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:35:20,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:20,750 INFO L87 Difference]: Start difference. First operand 58 states and 73 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) [2023-11-23 20:35:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:20,794 INFO L93 Difference]: Finished difference Result 93 states and 117 transitions. [2023-11-23 20:35:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:35:20,795 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 [2023-11-23 20:35:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:20,796 INFO L225 Difference]: With dead ends: 93 [2023-11-23 20:35:20,796 INFO L226 Difference]: Without dead ends: 50 [2023-11-23 20:35:20,797 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 [2023-11-23 20:35:20,799 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:20,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:35:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-23 20:35:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-23 20:35:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 38 states have internal predecessors, (40), 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) [2023-11-23 20:35:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2023-11-23 20:35:20,810 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 17 [2023-11-23 20:35:20,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:20,811 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2023-11-23 20:35:20,811 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) [2023-11-23 20:35:20,811 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-11-23 20:35:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:35:20,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:20,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:20,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:35:20,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:20,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2110353406, now seen corresponding path program 1 times [2023-11-23 20:35:20,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:20,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52903503] [2023-11-23 20:35:20,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:20,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:21,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52903503] [2023-11-23 20:35:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52903503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:21,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:21,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:35:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877413327] [2023-11-23 20:35:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:21,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:35:21,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:35:21,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:21,031 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-23 20:35:21,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:21,203 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2023-11-23 20:35:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:21,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 19 [2023-11-23 20:35:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:21,207 INFO L225 Difference]: With dead ends: 136 [2023-11-23 20:35:21,207 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 20:35:21,214 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 [2023-11-23 20:35:21,215 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 37 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:21,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 130 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:35:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 20:35:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2023-11-23 20:35:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 62 states have internal predecessors, (68), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2023-11-23 20:35:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions. [2023-11-23 20:35:21,246 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 19 [2023-11-23 20:35:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:21,247 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions. [2023-11-23 20:35:21,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-23 20:35:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2023-11-23 20:35:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:35:21,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:21,255 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] [2023-11-23 20:35:21,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:35:21,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:21,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:21,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1966029693, now seen corresponding path program 1 times [2023-11-23 20:35:21,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:21,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692044339] [2023-11-23 20:35:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:21,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:35:21,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:21,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692044339] [2023-11-23 20:35:21,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692044339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:21,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:21,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 20:35:21,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837084965] [2023-11-23 20:35:21,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:21,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:35:21,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:21,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:35:21,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:35:21,703 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 20:35:21,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:21,932 INFO L93 Difference]: Finished difference Result 242 states and 294 transitions. [2023-11-23 20:35:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:35:21,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2023-11-23 20:35:21,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:21,940 INFO L225 Difference]: With dead ends: 242 [2023-11-23 20:35:21,940 INFO L226 Difference]: Without dead ends: 158 [2023-11-23 20:35:21,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:35:21,948 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 66 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:21,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 222 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 20:35:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-23 20:35:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 132. [2023-11-23 20:35:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 86 states have (on average 1.2209302325581395) internal successors, (105), 94 states have internal predecessors, (105), 22 states have call successors, (22), 21 states have call predecessors, (22), 23 states have return successors, (28), 23 states have call predecessors, (28), 22 states have call successors, (28) [2023-11-23 20:35:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2023-11-23 20:35:21,988 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 35 [2023-11-23 20:35:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:21,988 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2023-11-23 20:35:21,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-23 20:35:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2023-11-23 20:35:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 20:35:21,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:21,990 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] [2023-11-23 20:35:21,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:35:21,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:21,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:21,991 INFO L85 PathProgramCache]: Analyzing trace with hash 831071386, now seen corresponding path program 1 times [2023-11-23 20:35:21,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:21,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558978470] [2023-11-23 20:35:21,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:21,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:35:22,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:22,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558978470] [2023-11-23 20:35:22,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558978470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:22,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:22,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 20:35:22,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707528954] [2023-11-23 20:35:22,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:22,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 20:35:22,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 20:35:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 20:35:22,353 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 20:35:23,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:23,098 INFO L93 Difference]: Finished difference Result 353 states and 459 transitions. [2023-11-23 20:35:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 20:35:23,099 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 38 [2023-11-23 20:35:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:23,102 INFO L225 Difference]: With dead ends: 353 [2023-11-23 20:35:23,102 INFO L226 Difference]: Without dead ends: 255 [2023-11-23 20:35:23,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 20:35:23,105 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 255 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:23,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 236 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 20:35:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-23 20:35:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 211. [2023-11-23 20:35:23,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 139 states have (on average 1.223021582733813) internal successors, (170), 152 states have internal predecessors, (170), 35 states have call successors, (35), 31 states have call predecessors, (35), 36 states have return successors, (54), 36 states have call predecessors, (54), 35 states have call successors, (54) [2023-11-23 20:35:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 259 transitions. [2023-11-23 20:35:23,151 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 259 transitions. Word has length 38 [2023-11-23 20:35:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:23,151 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 259 transitions. [2023-11-23 20:35:23,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 20:35:23,152 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 259 transitions. [2023-11-23 20:35:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 20:35:23,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:23,155 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:23,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:35:23,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:23,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:23,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1923101337, now seen corresponding path program 1 times [2023-11-23 20:35:23,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:23,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433215412] [2023-11-23 20:35:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:23,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:35:23,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:23,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433215412] [2023-11-23 20:35:23,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433215412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:23,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:23,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:35:23,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041131967] [2023-11-23 20:35:23,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:23,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:35:23,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:23,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:35:23,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:35:23,284 INFO L87 Difference]: Start difference. First operand 211 states and 259 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 20:35:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:23,348 INFO L93 Difference]: Finished difference Result 414 states and 514 transitions. [2023-11-23 20:35:23,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:35:23,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2023-11-23 20:35:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:23,352 INFO L225 Difference]: With dead ends: 414 [2023-11-23 20:35:23,352 INFO L226 Difference]: Without dead ends: 205 [2023-11-23 20:35:23,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:23,354 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 44 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:23,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 85 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:35:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-23 20:35:23,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 184. [2023-11-23 20:35:23,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 121 states have (on average 1.1900826446280992) internal successors, (144), 131 states have internal predecessors, (144), 31 states have call successors, (31), 27 states have call predecessors, (31), 31 states have return successors, (43), 32 states have call predecessors, (43), 31 states have call successors, (43) [2023-11-23 20:35:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 218 transitions. [2023-11-23 20:35:23,395 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 218 transitions. Word has length 58 [2023-11-23 20:35:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:23,396 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 218 transitions. [2023-11-23 20:35:23,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 20:35:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 218 transitions. [2023-11-23 20:35:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 20:35:23,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:23,398 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:23,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:35:23,399 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:23,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1343220446, now seen corresponding path program 1 times [2023-11-23 20:35:23,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:23,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297097940] [2023-11-23 20:35:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:23,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:35:23,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:23,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297097940] [2023-11-23 20:35:23,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297097940] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:35:23,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042098593] [2023-11-23 20:35:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:23,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:23,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:23,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:23,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:35:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:23,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 20:35:23,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 20:35:24,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:35:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:35:24,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042098593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:35:24,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1112855475] [2023-11-23 20:35:24,638 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2023-11-23 20:35:24,639 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 20:35:24,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 20:35:24,648 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 20:35:24,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 20:35:28,982 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 133 for LOIs [2023-11-23 20:35:29,158 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2023-11-23 20:35:29,412 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 38 for LOIs [2023-11-23 20:35:29,753 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 47 for LOIs [2023-11-23 20:35:30,034 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 1 for LOIs [2023-11-23 20:35:30,035 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 16 for LOIs [2023-11-23 20:35:30,038 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 9 for LOIs [2023-11-23 20:35:30,040 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 20:35:33,914 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3464#(and (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~2#1| 0)) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~6#1| 0)) (<= ~methaneLevelCritical~0 1) (= |timeShift_isPumpRunning_#res#1| ~pumpRunning~0) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~6#1| ~methaneLevelCritical~0) (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~2#1| 2147483647) (<= 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~2#1| 2147483648)) (<= 0 ~methaneLevelCritical~0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~2#1|))' at error location [2023-11-23 20:35:33,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 20:35:33,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 20:35:33,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 12] total 28 [2023-11-23 20:35:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041919271] [2023-11-23 20:35:33,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 20:35:33,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-23 20:35:33,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:33,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-23 20:35:33,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=3697, Unknown=0, NotChecked=0, Total=4032 [2023-11-23 20:35:33,919 INFO L87 Difference]: Start difference. First operand 184 states and 218 transitions. Second operand has 28 states, 19 states have (on average 4.894736842105263) internal successors, (93), 20 states have internal predecessors, (93), 5 states have call successors, (27), 7 states have call predecessors, (27), 12 states have return successors, (30), 11 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 20:35:35,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:35,191 INFO L93 Difference]: Finished difference Result 447 states and 548 transitions. [2023-11-23 20:35:35,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 20:35:35,192 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 4.894736842105263) internal successors, (93), 20 states have internal predecessors, (93), 5 states have call successors, (27), 7 states have call predecessors, (27), 12 states have return successors, (30), 11 states have call predecessors, (30), 5 states have call successors, (30) Word has length 77 [2023-11-23 20:35:35,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:35,193 INFO L225 Difference]: With dead ends: 447 [2023-11-23 20:35:35,193 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:35:35,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 1925 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=572, Invalid=6234, Unknown=0, NotChecked=0, Total=6806 [2023-11-23 20:35:35,198 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 176 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:35,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 192 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 20:35:35,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:35:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:35:35,200 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) [2023-11-23 20:35:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:35:35,200 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2023-11-23 20:35:35,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:35,200 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:35:35,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 4.894736842105263) internal successors, (93), 20 states have internal predecessors, (93), 5 states have call successors, (27), 7 states have call predecessors, (27), 12 states have return successors, (30), 11 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-23 20:35:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:35:35,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:35:35,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:35:35,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 20:35:35,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:35,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:35:36,800 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2023-11-23 20:35:36,801 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2023-11-23 20:35:36,801 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 530 541) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0) (or (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1)) .cse0))) [2023-11-23 20:35:36,801 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 530 541) no Hoare annotation was computed. [2023-11-23 20:35:36,801 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 542 550) the Hoare annotation is: true [2023-11-23 20:35:36,801 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 542 550) no Hoare annotation was computed. [2023-11-23 20:35:36,801 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 335 364) no Hoare annotation was computed. [2023-11-23 20:35:36,801 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 353) no Hoare annotation was computed. [2023-11-23 20:35:36,801 INFO L902 garLoopResultBuilder]: At program point L349-1(lines 349 353) the Hoare annotation is: true [2023-11-23 20:35:36,802 INFO L902 garLoopResultBuilder]: At program point L345-2(lines 345 359) the Hoare annotation is: true [2023-11-23 20:35:36,802 INFO L902 garLoopResultBuilder]: At program point L341(line 341) the Hoare annotation is: true [2023-11-23 20:35:36,802 INFO L899 garLoopResultBuilder]: For program point L341-1(line 341) no Hoare annotation was computed. [2023-11-23 20:35:36,802 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 335 364) the Hoare annotation is: true [2023-11-23 20:35:36,802 INFO L899 garLoopResultBuilder]: For program point L360(lines 335 364) no Hoare annotation was computed. [2023-11-23 20:35:36,802 INFO L899 garLoopResultBuilder]: For program point L356(line 356) no Hoare annotation was computed. [2023-11-23 20:35:36,802 INFO L895 garLoopResultBuilder]: At program point L206(line 206) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse0))) [2023-11-23 20:35:36,802 INFO L895 garLoopResultBuilder]: At program point L198(line 198) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse3 .cse2) (or .cse4 .cse1 .cse2))) [2023-11-23 20:35:36,803 INFO L899 garLoopResultBuilder]: For program point L198-1(line 198) no Hoare annotation was computed. [2023-11-23 20:35:36,803 INFO L895 garLoopResultBuilder]: At program point L483(line 483) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse3) (or .cse0 .cse1 .cse6 .cse3 .cse4) (or (not .cse4) (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse6 .cse3))) [2023-11-23 20:35:36,803 INFO L899 garLoopResultBuilder]: For program point L483-1(line 483) no Hoare annotation was computed. [2023-11-23 20:35:36,803 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= ~methaneLevelCritical~0 1))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5) (or .cse1 .cse2 .cse5) (or .cse0 .cse4 .cse2 .cse3))) [2023-11-23 20:35:36,803 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 192 216) no Hoare annotation was computed. [2023-11-23 20:35:36,803 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 145 151) no Hoare annotation was computed. [2023-11-23 20:35:36,803 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 134 157) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse3 .cse4) (or .cse6 .cse2 .cse3) (or .cse6 .cse5 .cse3))) [2023-11-23 20:35:36,810 INFO L899 garLoopResultBuilder]: For program point L472(line 472) no Hoare annotation was computed. [2023-11-23 20:35:36,810 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2023-11-23 20:35:36,810 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 137 156) no Hoare annotation was computed. [2023-11-23 20:35:36,810 INFO L899 garLoopResultBuilder]: For program point L489(lines 489 495) no Hoare annotation was computed. [2023-11-23 20:35:36,810 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2023-11-23 20:35:36,811 INFO L899 garLoopResultBuilder]: For program point L200(lines 200 208) no Hoare annotation was computed. [2023-11-23 20:35:36,811 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 498) no Hoare annotation was computed. [2023-11-23 20:35:36,812 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 213) no Hoare annotation was computed. [2023-11-23 20:35:36,812 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 477 501) no Hoare annotation was computed. [2023-11-23 20:35:36,813 INFO L899 garLoopResultBuilder]: For program point L419-2(lines 419 426) no Hoare annotation was computed. [2023-11-23 20:35:36,813 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-11-23 20:35:36,813 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2023-11-23 20:35:36,813 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 1) .cse0 .cse1))) [2023-11-23 20:35:36,814 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 1) .cse0 .cse1))) [2023-11-23 20:35:36,814 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 95 108) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1))) [2023-11-23 20:35:36,814 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2023-11-23 20:35:36,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:35:36,814 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 1) .cse0 .cse1))) [2023-11-23 20:35:36,815 INFO L899 garLoopResultBuilder]: For program point L116(lines 55 120) no Hoare annotation was computed. [2023-11-23 20:35:36,815 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2023-11-23 20:35:36,815 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2023-11-23 20:35:36,815 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:35:36,815 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2023-11-23 20:35:36,815 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 426) no Hoare annotation was computed. [2023-11-23 20:35:36,815 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 518 529) no Hoare annotation was computed. [2023-11-23 20:35:36,816 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 518 529) the Hoare annotation is: true [2023-11-23 20:35:36,816 INFO L895 garLoopResultBuilder]: At program point L180(line 180) the Hoare annotation is: (let ((.cse2 (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= ~waterLevel~0 1))) (.cse6 (or (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 1) .cse2)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse1 .cse3) (or (not .cse5) (and .cse4 (or .cse0 .cse2) .cse6) (not (= ~methaneLevelCritical~0 1)) .cse3)))) [2023-11-23 20:35:36,816 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 182) no Hoare annotation was computed. [2023-11-23 20:35:36,816 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 187) no Hoare annotation was computed. [2023-11-23 20:35:36,816 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 166 190) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~methaneLevelCritical~0 1)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0)) .cse0))) [2023-11-23 20:35:36,817 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 1))) (.cse2 (= ~pumpRunning~0 0)) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (or (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 1) (= |processEnvironment__wrappee__methaneQuery_~tmp~1#1| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or (not .cse0) (and .cse1 .cse2 .cse3) (not (= ~methaneLevelCritical~0 1)) .cse4) (or (and .cse1 .cse2 .cse0 .cse3) (not (= ~methaneLevelCritical~0 0)) .cse4))) [2023-11-23 20:35:36,817 INFO L899 garLoopResultBuilder]: For program point L230-1(line 230) no Hoare annotation was computed. [2023-11-23 20:35:36,817 INFO L895 garLoopResultBuilder]: At program point L185(line 185) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= ~methaneLevelCritical~0 1)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2))) [2023-11-23 20:35:36,817 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2023-11-23 20:35:36,817 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 166 190) no Hoare annotation was computed. [2023-11-23 20:35:36,817 INFO L902 garLoopResultBuilder]: At program point L255(line 255) the Hoare annotation is: true [2023-11-23 20:35:36,818 INFO L899 garLoopResultBuilder]: For program point L255-1(line 255) no Hoare annotation was computed. [2023-11-23 20:35:36,818 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2023-11-23 20:35:36,818 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 250 260) the Hoare annotation is: true [2023-11-23 20:35:36,821 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:36,823 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:36,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:36 BoogieIcfgContainer [2023-11-23 20:35:36,838 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:36,839 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:36,839 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:36,839 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:36,839 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:20" (3/4) ... [2023-11-23 20:35:36,841 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:35:36,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 20:35:36,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 20:35:36,846 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 20:35:36,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 20:35:36,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 20:35:36,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 20:35:36,847 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-23 20:35:36,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-23 20:35:36,862 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2023-11-23 20:35:36,863 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 20:35:36,864 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:35:36,865 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:35:36,865 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:35:36,897 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || (waterLevel == 1)) && ((((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || (waterLevel == 1))) && (((pumpRunning == \old(pumpRunning)) || !((methaneLevelCritical == 1))) || (0 == systemActive))) && (((pumpRunning == \old(pumpRunning)) || !((methaneLevelCritical == 0))) || (0 == systemActive))) [2023-11-23 20:35:36,955 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || (waterLevel == 1)) && ((((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || (waterLevel == 1))) && (((pumpRunning == \old(pumpRunning)) || !((methaneLevelCritical == 1))) || (0 == systemActive))) && (((pumpRunning == \old(pumpRunning)) || !((methaneLevelCritical == 0))) || (0 == systemActive))) [2023-11-23 20:35:37,010 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:35:37,011 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:35:37,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:37,011 INFO L158 Benchmark]: Toolchain (without parser) took 18277.79ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 95.1MB in the beginning and 194.7MB in the end (delta: -99.6MB). Peak memory consumption was 278.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,012 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:37,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.98ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 75.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.10ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 73.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,013 INFO L158 Benchmark]: Boogie Preprocessor took 30.95ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 71.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,013 INFO L158 Benchmark]: RCFGBuilder took 639.86ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 71.8MB in the beginning and 159.5MB in the end (delta: -87.8MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,014 INFO L158 Benchmark]: TraceAbstraction took 16788.68ms. Allocated memory was 209.7MB in the beginning and 520.1MB in the end (delta: 310.4MB). Free memory was 159.2MB in the beginning and 203.1MB in the end (delta: -43.9MB). Peak memory consumption was 266.5MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,014 INFO L158 Benchmark]: Witness Printer took 172.21ms. Allocated memory is still 520.1MB. Free memory was 202.0MB in the beginning and 194.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:35:37,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 90.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.98ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 75.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.10ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 73.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.95ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 71.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 639.86ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 71.8MB in the beginning and 159.5MB in the end (delta: -87.8MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16788.68ms. Allocated memory was 209.7MB in the beginning and 520.1MB in the end (delta: 310.4MB). Free memory was 159.2MB in the beginning and 203.1MB in the end (delta: -43.9MB). Peak memory consumption was 266.5MB. Max. memory is 16.1GB. * Witness Printer took 172.21ms. Allocated memory is still 520.1MB. Free memory was 202.0MB in the beginning and 194.7MB in the end (delta: 7.3MB). 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] - GenericResultAtLocation [Line: 432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] - GenericResultAtLocation [Line: 476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] - GenericResultAtLocation [Line: 597]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] * 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: 472]: 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, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.7s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 600 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 585 mSDsluCounter, 1014 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 698 mSDsCounter, 285 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1838 IncrementalHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 285 mSolverCounterUnsat, 316 mSDtfsCounter, 1838 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 2210 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=5, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 93 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 396 PreInvPairs, 446 NumberOfFragments, 593 HoareAnnotationTreeSize, 396 FomulaSimplifications, 1983 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 2489 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 981 SizeOfPredicates, 5 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 110/128 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: 65]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((pumpRunning == 0) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 1))) || (0 == systemActive)) || (waterLevel == 1)) && ((((!((\old(pumpRunning) == 0)) || !((\old(waterLevel) == 1))) || !((methaneLevelCritical == 0))) || (0 == systemActive)) || (waterLevel == 1))) && (((pumpRunning == \old(pumpRunning)) || !((methaneLevelCritical == 1))) || (0 == systemActive))) && (((pumpRunning == \old(pumpRunning)) || !((methaneLevelCritical == 0))) || (0 == systemActive))) RESULT: Ultimate proved your program to be correct! [2023-11-23 20:35:37,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efe1d76-a91e-4ba6-8f2d-3fc19c626e9a/bin/utaipan-verify-mE87zJ7Ire/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