./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/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_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/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_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/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 88ff815406ee05bb7be24dfe33a6433686b8428d0ee44eba6801f1c0f5610c0a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:24:28,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:24:28,425 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:24:28,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:24:28,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:24:28,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:24:28,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:24:28,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:24:28,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:24:28,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:24:28,489 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:24:28,490 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:24:28,490 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:24:28,492 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:24:28,492 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:24:28,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:24:28,493 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:24:28,494 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:24:28,495 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:24:28,497 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:24:28,497 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:24:28,498 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:24:28,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:24:28,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:24:28,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:24:28,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:24:28,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:24:28,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:24:28,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:24:28,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:24:28,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:24:28,505 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:24:28,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:24:28,505 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:24:28,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:24:28,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:24:28,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:24:28,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:24:28,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:24:28,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:24:28,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:24:28,509 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:24:28,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:24:28,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:24:28,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:24:28,510 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:24:28,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:24:28,511 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_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88ff815406ee05bb7be24dfe33a6433686b8428d0ee44eba6801f1c0f5610c0a [2023-11-23 21:24:28,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:24:28,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:24:28,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:24:28,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:24:28,838 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:24:28,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c [2023-11-23 21:24:31,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:24:32,246 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:24:32,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c [2023-11-23 21:24:32,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/data/2919b15b7/8fdc3856ad61450e9411591935e2cf6f/FLAG91c8f69cd [2023-11-23 21:24:32,285 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/data/2919b15b7/8fdc3856ad61450e9411591935e2cf6f [2023-11-23 21:24:32,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:24:32,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:24:32,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:24:32,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:24:32,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:24:32,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463a1b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32, skipping insertion in model container [2023-11-23 21:24:32,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,375 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:24:32,671 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_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c[14660,14673] [2023-11-23 21:24:32,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:24:32,704 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:24:32,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-23 21:24:32,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [415] [2023-11-23 21:24:32,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [457] [2023-11-23 21:24:32,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [562] [2023-11-23 21:24:32,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [655] [2023-11-23 21:24:32,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] [2023-11-23 21:24:32,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] [2023-11-23 21:24:32,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [879] [2023-11-23 21:24:32,815 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_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c[14660,14673] [2023-11-23 21:24:32,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:24:32,877 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:24:32,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32 WrapperNode [2023-11-23 21:24:32,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:24:32,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:24:32,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:24:32,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:24:32,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,953 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 186 [2023-11-23 21:24:32,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:24:32,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:24:32,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:24:32,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:24:32,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:32,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:33,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:33,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:33,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:33,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:24:33,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:24:33,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:24:33,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:24:33,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (1/1) ... [2023-11-23 21:24:33,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:24:33,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:24:33,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:24:33,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:24:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:24:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 21:24:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 21:24:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:24:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:24:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:24:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:24:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 21:24:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 21:24:33,098 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:24:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:24:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-23 21:24:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-11-23 21:24:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 21:24:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 21:24:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:24:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:24:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:24:33,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:24:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:24:33,187 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:24:33,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:24:33,556 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:24:33,712 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:24:33,712 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:24:33,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:33 BoogieIcfgContainer [2023-11-23 21:24:33,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:24:33,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:24:33,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:24:33,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:24:33,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:24:32" (1/3) ... [2023-11-23 21:24:33,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a7a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:24:33, skipping insertion in model container [2023-11-23 21:24:33,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:24:32" (2/3) ... [2023-11-23 21:24:33,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a7a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:24:33, skipping insertion in model container [2023-11-23 21:24:33,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:33" (3/3) ... [2023-11-23 21:24:33,726 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product21.cil.c [2023-11-23 21:24:33,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:24:33,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:24:33,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:24:33,816 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;@262ab5e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:24:33,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:24:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:24:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:24:33,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:33,842 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 21:24:33,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:33,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash -361371376, now seen corresponding path program 1 times [2023-11-23 21:24:33,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:33,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198462706] [2023-11-23 21:24:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:34,092 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 21:24:34,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:34,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198462706] [2023-11-23 21:24:34,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198462706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:34,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:34,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:24:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286603912] [2023-11-23 21:24:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:34,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:24:34,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:34,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:24:34,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:24:34,137 INFO L87 Difference]: Start difference. First operand has 62 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:34,206 INFO L93 Difference]: Finished difference Result 122 states and 165 transitions. [2023-11-23 21:24:34,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:24:34,209 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 21:24:34,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:34,218 INFO L225 Difference]: With dead ends: 122 [2023-11-23 21:24:34,219 INFO L226 Difference]: Without dead ends: 57 [2023-11-23 21:24:34,223 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 21:24:34,227 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:34,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:24:34,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-23 21:24:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-23 21:24:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 42 states have internal predecessors, (46), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 21:24:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2023-11-23 21:24:34,291 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 17 [2023-11-23 21:24:34,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:34,293 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2023-11-23 21:24:34,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-23 21:24:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:24:34,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:34,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:24:34,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:34,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1245996745, now seen corresponding path program 1 times [2023-11-23 21:24:34,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:34,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967530949] [2023-11-23 21:24:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:34,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:34,482 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 21:24:34,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:34,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967530949] [2023-11-23 21:24:34,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967530949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:34,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:34,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790450180] [2023-11-23 21:24:34,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:34,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:34,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:34,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:34,489 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:34,540 INFO L93 Difference]: Finished difference Result 91 states and 117 transitions. [2023-11-23 21:24:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:34,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-23 21:24:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:34,543 INFO L225 Difference]: With dead ends: 91 [2023-11-23 21:24:34,544 INFO L226 Difference]: Without dead ends: 49 [2023-11-23 21:24:34,545 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 21:24:34,547 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:34,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:24:34,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-23 21:24:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-23 21:24:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 37 states have internal predecessors, (40), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:24:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 62 transitions. [2023-11-23 21:24:34,561 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 62 transitions. Word has length 18 [2023-11-23 21:24:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:34,561 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 62 transitions. [2023-11-23 21:24:34,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:34,562 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 62 transitions. [2023-11-23 21:24:34,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:24:34,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:34,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:34,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:24:34,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:34,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:34,566 INFO L85 PathProgramCache]: Analyzing trace with hash 984325169, now seen corresponding path program 1 times [2023-11-23 21:24:34,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:34,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558042836] [2023-11-23 21:24:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:34,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:34,727 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 21:24:34,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:34,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558042836] [2023-11-23 21:24:34,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558042836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:34,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:34,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:24:34,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896944653] [2023-11-23 21:24:34,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:34,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:24:34,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:34,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:24:34,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:24:34,732 INFO L87 Difference]: Start difference. First operand 49 states and 62 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:34,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:34,860 INFO L93 Difference]: Finished difference Result 96 states and 123 transitions. [2023-11-23 21:24:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:24:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-23 21:24:34,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:34,862 INFO L225 Difference]: With dead ends: 96 [2023-11-23 21:24:34,863 INFO L226 Difference]: Without dead ends: 49 [2023-11-23 21:24:34,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:24:34,866 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:34,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 63 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-23 21:24:34,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-23 21:24:34,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 37 states have internal predecessors, (39), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 21:24:34,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2023-11-23 21:24:34,883 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 20 [2023-11-23 21:24:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:34,883 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-11-23 21:24:34,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:24:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-11-23 21:24:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:24:34,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:34,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:34,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:24:34,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:34,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:34,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1924356418, now seen corresponding path program 1 times [2023-11-23 21:24:34,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:34,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365333490] [2023-11-23 21:24:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:34,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:35,083 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 21:24:35,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:35,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365333490] [2023-11-23 21:24:35,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365333490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:35,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:24:35,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:24:35,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481561168] [2023-11-23 21:24:35,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:35,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:24:35,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:24:35,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:24:35,090 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:24:35,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:35,193 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2023-11-23 21:24:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:24:35,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-23 21:24:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:35,200 INFO L225 Difference]: With dead ends: 96 [2023-11-23 21:24:35,201 INFO L226 Difference]: Without dead ends: 94 [2023-11-23 21:24:35,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 21:24:35,210 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 38 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:35,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 91 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:24:35,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-23 21:24:35,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-23 21:24:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 70 states have internal predecessors, (74), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (24), 14 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-23 21:24:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2023-11-23 21:24:35,249 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 30 [2023-11-23 21:24:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:35,249 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2023-11-23 21:24:35,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:24:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2023-11-23 21:24:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 21:24:35,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:24:35,263 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:24:35,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:24:35,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:24:35,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:24:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash -230287137, now seen corresponding path program 1 times [2023-11-23 21:24:35,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:24:35,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524518470] [2023-11-23 21:24:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:24:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 21:24:35,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:24:35,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524518470] [2023-11-23 21:24:35,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524518470] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:24:35,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035888253] [2023-11-23 21:24:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:24:35,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:24:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:24:35,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:24:35,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:24:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:24:35,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:24:35,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:24:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 21:24:35,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:24:35,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035888253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:24:35,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:24:35,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-23 21:24:35,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866980521] [2023-11-23 21:24:35,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:24:35,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:24:35,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:24:35,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:24:35,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:24:35,762 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 21:24:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:24:35,833 INFO L93 Difference]: Finished difference Result 129 states and 164 transitions. [2023-11-23 21:24:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:24:35,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-11-23 21:24:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:24:35,835 INFO L225 Difference]: With dead ends: 129 [2023-11-23 21:24:35,835 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:24:35,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:24:35,844 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 27 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:24:35,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 51 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:24:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:24:35,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:24:35,851 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 21:24:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:24:35,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-23 21:24:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:24:35,852 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:24:35,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 21:24:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:24:35,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:24:35,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:24:35,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:24:36,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:24:36,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:24:36,301 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 796 803) no Hoare annotation was computed. [2023-11-23 21:24:36,302 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 796 803) the Hoare annotation is: true [2023-11-23 21:24:36,302 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 729 735) no Hoare annotation was computed. [2023-11-23 21:24:36,302 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 729 735) the Hoare annotation is: true [2023-11-23 21:24:36,302 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 593 604) the Hoare annotation is: true [2023-11-23 21:24:36,303 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 593 604) no Hoare annotation was computed. [2023-11-23 21:24:36,303 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 450) no Hoare annotation was computed. [2023-11-23 21:24:36,303 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 453) no Hoare annotation was computed. [2023-11-23 21:24:36,304 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 428 456) no Hoare annotation was computed. [2023-11-23 21:24:36,304 INFO L899 garLoopResultBuilder]: For program point L709-1(lines 708 727) no Hoare annotation was computed. [2023-11-23 21:24:36,304 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 779) no Hoare annotation was computed. [2023-11-23 21:24:36,304 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 784) no Hoare annotation was computed. [2023-11-23 21:24:36,304 INFO L899 garLoopResultBuilder]: For program point L441(lines 441 447) no Hoare annotation was computed. [2023-11-23 21:24:36,304 INFO L899 garLoopResultBuilder]: For program point L660(line 660) no Hoare annotation was computed. [2023-11-23 21:24:36,305 INFO L895 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2023-11-23 21:24:36,306 INFO L899 garLoopResultBuilder]: For program point L809-1(line 809) no Hoare annotation was computed. [2023-11-23 21:24:36,306 INFO L895 garLoopResultBuilder]: At program point L434(line 434) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,307 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2023-11-23 21:24:36,307 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 705 728) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,307 INFO L895 garLoopResultBuilder]: At program point L777(line 777) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2023-11-23 21:24:36,307 INFO L895 garLoopResultBuilder]: At program point L773(line 773) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0)) [2023-11-23 21:24:36,308 INFO L895 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (= 0 ~systemActive~0) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,308 INFO L899 garLoopResultBuilder]: For program point L782-1(lines 763 787) no Hoare annotation was computed. [2023-11-23 21:24:36,308 INFO L899 garLoopResultBuilder]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2023-11-23 21:24:36,308 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 705 728) no Hoare annotation was computed. [2023-11-23 21:24:36,309 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 660) no Hoare annotation was computed. [2023-11-23 21:24:36,309 INFO L899 garLoopResultBuilder]: For program point L481(line 481) no Hoare annotation was computed. [2023-11-23 21:24:36,309 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 460 489) no Hoare annotation was computed. [2023-11-23 21:24:36,309 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2023-11-23 21:24:36,309 INFO L902 garLoopResultBuilder]: At program point L474-1(lines 474 478) the Hoare annotation is: true [2023-11-23 21:24:36,309 INFO L902 garLoopResultBuilder]: At program point L470-2(lines 470 484) the Hoare annotation is: true [2023-11-23 21:24:36,310 INFO L902 garLoopResultBuilder]: At program point L466(line 466) the Hoare annotation is: true [2023-11-23 21:24:36,310 INFO L899 garLoopResultBuilder]: For program point L466-1(line 466) no Hoare annotation was computed. [2023-11-23 21:24:36,310 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 460 489) the Hoare annotation is: true [2023-11-23 21:24:36,311 INFO L899 garLoopResultBuilder]: For program point L485(lines 460 489) no Hoare annotation was computed. [2023-11-23 21:24:36,311 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 605 613) the Hoare annotation is: true [2023-11-23 21:24:36,311 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 605 613) no Hoare annotation was computed. [2023-11-23 21:24:36,311 INFO L895 garLoopResultBuilder]: At program point L936(lines 889 937) the Hoare annotation is: false [2023-11-23 21:24:36,311 INFO L899 garLoopResultBuilder]: For program point L891(lines 890 935) no Hoare annotation was computed. [2023-11-23 21:24:36,312 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2023-11-23 21:24:36,312 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 556) no Hoare annotation was computed. [2023-11-23 21:24:36,312 INFO L895 garLoopResultBuilder]: At program point L933(lines 890 935) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2023-11-23 21:24:36,312 INFO L899 garLoopResultBuilder]: For program point L900(lines 900 906) no Hoare annotation was computed. [2023-11-23 21:24:36,312 INFO L899 garLoopResultBuilder]: For program point L900-1(lines 900 906) no Hoare annotation was computed. [2023-11-23 21:24:36,313 INFO L899 garLoopResultBuilder]: For program point L549-2(lines 549 556) no Hoare annotation was computed. [2023-11-23 21:24:36,313 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:24:36,313 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:24:36,313 INFO L895 garLoopResultBuilder]: At program point L926-2(lines 920 931) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2023-11-23 21:24:36,313 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 916) no Hoare annotation was computed. [2023-11-23 21:24:36,314 INFO L899 garLoopResultBuilder]: For program point L910-1(lines 910 916) no Hoare annotation was computed. [2023-11-23 21:24:36,314 INFO L899 garLoopResultBuilder]: For program point L939(lines 880 943) no Hoare annotation was computed. [2023-11-23 21:24:36,314 INFO L895 garLoopResultBuilder]: At program point L902(line 902) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2023-11-23 21:24:36,314 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 581 592) no Hoare annotation was computed. [2023-11-23 21:24:36,314 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 581 592) the Hoare annotation is: true [2023-11-23 21:24:36,315 INFO L895 garLoopResultBuilder]: At program point L756(line 756) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,315 INFO L899 garLoopResultBuilder]: For program point L756-1(lines 737 761) no Hoare annotation was computed. [2023-11-23 21:24:36,322 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 737 761) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,322 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 737 761) no Hoare annotation was computed. [2023-11-23 21:24:36,322 INFO L895 garLoopResultBuilder]: At program point L751(line 751) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,322 INFO L895 garLoopResultBuilder]: At program point L747(line 747) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2023-11-23 21:24:36,323 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 753) no Hoare annotation was computed. [2023-11-23 21:24:36,323 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 758) no Hoare annotation was computed. [2023-11-23 21:24:36,326 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-23 21:24:36,329 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:24:36,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:24:36 BoogieIcfgContainer [2023-11-23 21:24:36,342 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:24:36,343 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:24:36,343 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:24:36,343 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:24:36,344 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:24:33" (3/4) ... [2023-11-23 21:24:36,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:24:36,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-23 21:24:36,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 21:24:36,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 21:24:36,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 21:24:36,350 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 21:24:36,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 21:24:36,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 21:24:36,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-11-23 21:24:36,360 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2023-11-23 21:24:36,361 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 21:24:36,361 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:24:36,362 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:24:36,363 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:24:36,393 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) [2023-11-23 21:24:36,428 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) [2023-11-23 21:24:36,482 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:24:36,483 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:24:36,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:24:36,484 INFO L158 Benchmark]: Toolchain (without parser) took 4192.36ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 95.4MB in the beginning and 135.6MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:24:36,485 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 119.5MB. Free memory was 85.5MB in the beginning and 85.5MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:24:36,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.04ms. Allocated memory is still 144.7MB. Free memory was 94.7MB in the beginning and 76.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:24:36,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.53ms. Allocated memory is still 144.7MB. Free memory was 76.1MB in the beginning and 73.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:24:36,487 INFO L158 Benchmark]: Boogie Preprocessor took 59.61ms. Allocated memory is still 144.7MB. Free memory was 73.8MB in the beginning and 71.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:24:36,487 INFO L158 Benchmark]: RCFGBuilder took 700.23ms. Allocated memory is still 144.7MB. Free memory was 71.9MB in the beginning and 103.9MB in the end (delta: -32.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-23 21:24:36,488 INFO L158 Benchmark]: TraceAbstraction took 2625.06ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 103.9MB in the beginning and 142.9MB in the end (delta: -39.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2023-11-23 21:24:36,488 INFO L158 Benchmark]: Witness Printer took 140.74ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 135.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:24:36,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 119.5MB. Free memory was 85.5MB in the beginning and 85.5MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.04ms. Allocated memory is still 144.7MB. Free memory was 94.7MB in the beginning and 76.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.53ms. Allocated memory is still 144.7MB. Free memory was 76.1MB in the beginning and 73.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.61ms. Allocated memory is still 144.7MB. Free memory was 73.8MB in the beginning and 71.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 700.23ms. Allocated memory is still 144.7MB. Free memory was 71.9MB in the beginning and 103.9MB in the end (delta: -32.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2625.06ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 103.9MB in the beginning and 142.9MB in the end (delta: -39.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * Witness Printer took 140.74ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 135.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [415] - GenericResultAtLocation [Line: 457]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [457] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [562] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [655] - GenericResultAtLocation [Line: 664]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] - GenericResultAtLocation [Line: 879]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [879] * 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: 660]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 357 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 229 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 153 PreInvPairs, 158 NumberOfFragments, 225 HoareAnnotationTreeSize, 153 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 2 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 53/54 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: 890]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (tmp == systemActive)) && !((0 == systemActive))) - InvariantResult [Line: 889]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: (((!((\old(pumpRunning) == 0)) || !((\old(methAndRunningLastTime) == 0))) || (0 == systemActive)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:24:36,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5338af44-9adc-4d3d-9f81-ca3b4285f3a1/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