./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:14:10,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:14:10,700 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:14:10,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:14:10,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:14:10,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:14:10,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:14:10,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:14:10,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:14:10,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:14:10,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:14:10,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:14:10,757 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:14:10,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:14:10,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:14:10,760 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:14:10,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:14:10,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:14:10,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:14:10,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:14:10,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:14:10,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:14:10,764 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:14:10,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:14:10,765 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:14:10,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:14:10,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:14:10,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:14:10,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:10,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:14:10,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:14:10,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:14:10,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:14:10,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:14:10,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:14:10,771 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:14:10,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:14:10,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:14:10,772 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:14:10,772 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f20c6619059452dea710c235d91f0e8ca980fcacc48c7e37668ab8a6397c50 [2023-11-06 21:14:11,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:14:11,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:14:11,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:14:11,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:14:11,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:14:11,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2023-11-06 21:14:14,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:14:14,540 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:14:14,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c [2023-11-06 21:14:14,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/data/94917606d/889921658d894ea5a1a517de16554b31/FLAGa671f1890 [2023-11-06 21:14:14,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/data/94917606d/889921658d894ea5a1a517de16554b31 [2023-11-06 21:14:14,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:14:14,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:14:14,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:14,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:14:14,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:14:14,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:14" (1/1) ... [2023-11-06 21:14:14,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e50f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:14, skipping insertion in model container [2023-11-06 21:14:14,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:14" (1/1) ... [2023-11-06 21:14:14,670 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:14:14,900 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_d6256f5d-1a83-4ffb-8a65-fa660e169050/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c[11292,11305] [2023-11-06 21:14:14,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:14,966 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:14:14,977 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-06 21:14:14,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2023-11-06 21:14:14,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [424] [2023-11-06 21:14:14,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [530] [2023-11-06 21:14:14,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [733] [2023-11-06 21:14:14,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [798] [2023-11-06 21:14:14,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] [2023-11-06 21:14:14,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [928] [2023-11-06 21:14:15,046 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_d6256f5d-1a83-4ffb-8a65-fa660e169050/sv-benchmarks/c/product-lines/minepump_spec2_product45.cil.c[11292,11305] [2023-11-06 21:14:15,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:15,085 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:14:15,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15 WrapperNode [2023-11-06 21:14:15,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:15,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:15,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:14:15,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:14:15,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,138 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 193 [2023-11-06 21:14:15,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:15,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:14:15,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:14:15,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:14:15,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:14:15,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:14:15,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:14:15,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:14:15,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (1/1) ... [2023-11-06 21:14:15,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:14:15,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:15,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:15,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:14:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:14:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-06 21:14:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-06 21:14:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-06 21:14:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-06 21:14:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-06 21:14:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-06 21:14:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-06 21:14:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-06 21:14:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-06 21:14:15,260 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-06 21:14:15,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-06 21:14:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-06 21:14:15,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-06 21:14:15,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-06 21:14:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:14:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-06 21:14:15,263 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-06 21:14:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:14:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:14:15,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:14:15,396 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:14:15,712 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:14:15,720 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:14:15,720 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 21:14:15,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:15 BoogieIcfgContainer [2023-11-06 21:14:15,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:14:15,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:14:15,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:14:15,730 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:14:15,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:14:14" (1/3) ... [2023-11-06 21:14:15,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d12dc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:15, skipping insertion in model container [2023-11-06 21:14:15,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:15" (2/3) ... [2023-11-06 21:14:15,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d12dc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:14:15, skipping insertion in model container [2023-11-06 21:14:15,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:15" (3/3) ... [2023-11-06 21:14:15,734 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2023-11-06 21:14:15,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:14:15,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:14:15,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:14:15,807 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a9b5d78, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:14:15,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:14:15,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 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) [2023-11-06 21:14:15,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 21:14:15,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:15,826 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] [2023-11-06 21:14:15,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:15,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:15,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668402, now seen corresponding path program 1 times [2023-11-06 21:14:15,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:15,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150413509] [2023-11-06 21:14:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:15,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 21:14:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:16,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:16,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150413509] [2023-11-06 21:14:16,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150413509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:16,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:16,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:14:16,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913942443] [2023-11-06 21:14:16,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:16,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:14:16,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:16,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:14:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:14:16,205 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2023-11-06 21:14:16,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:16,283 INFO L93 Difference]: Finished difference Result 181 states and 246 transitions. [2023-11-06 21:14:16,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:14:16,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2023-11-06 21:14:16,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:16,297 INFO L225 Difference]: With dead ends: 181 [2023-11-06 21:14:16,297 INFO L226 Difference]: Without dead ends: 86 [2023-11-06 21:14:16,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:14:16,309 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:16,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:14:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-06 21:14:16,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-06 21:14:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 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) [2023-11-06 21:14:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2023-11-06 21:14:16,378 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2023-11-06 21:14:16,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:16,380 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2023-11-06 21:14:16,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2023-11-06 21:14:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2023-11-06 21:14:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-06 21:14:16,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:16,386 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] [2023-11-06 21:14:16,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:14:16,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:16,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash 224653099, now seen corresponding path program 1 times [2023-11-06 21:14:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:16,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222103348] [2023-11-06 21:14:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:16,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 21:14:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:16,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:16,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222103348] [2023-11-06 21:14:16,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222103348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:16,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:16,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:14:16,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570406651] [2023-11-06 21:14:16,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:16,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:14:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:14:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:14:16,603 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-06 21:14:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:16,644 INFO L93 Difference]: Finished difference Result 137 states and 177 transitions. [2023-11-06 21:14:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:14:16,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2023-11-06 21:14:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:16,648 INFO L225 Difference]: With dead ends: 137 [2023-11-06 21:14:16,648 INFO L226 Difference]: Without dead ends: 77 [2023-11-06 21:14:16,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:14:16,655 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:16,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:14:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-06 21:14:16,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-06 21:14:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 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) [2023-11-06 21:14:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2023-11-06 21:14:16,676 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2023-11-06 21:14:16,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:16,676 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2023-11-06 21:14:16,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-06 21:14:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2023-11-06 21:14:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 21:14:16,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:16,679 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] [2023-11-06 21:14:16,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:14:16,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:16,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:16,680 INFO L85 PathProgramCache]: Analyzing trace with hash 13787135, now seen corresponding path program 1 times [2023-11-06 21:14:16,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:16,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35378267] [2023-11-06 21:14:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:16,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:16,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:16,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:16,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35378267] [2023-11-06 21:14:16,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35378267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:16,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:16,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:14:16,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856177556] [2023-11-06 21:14:16,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:16,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:14:16,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:16,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:14:16,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:14:16,864 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-06 21:14:16,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:16,888 INFO L93 Difference]: Finished difference Result 146 states and 191 transitions. [2023-11-06 21:14:16,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:14:16,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 30 [2023-11-06 21:14:16,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:16,893 INFO L225 Difference]: With dead ends: 146 [2023-11-06 21:14:16,893 INFO L226 Difference]: Without dead ends: 77 [2023-11-06 21:14:16,900 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 [2023-11-06 21:14:16,903 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:16,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:14:16,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-06 21:14:16,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-06 21:14:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 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) [2023-11-06 21:14:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2023-11-06 21:14:16,924 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 30 [2023-11-06 21:14:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:16,924 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2023-11-06 21:14:16,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-06 21:14:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2023-11-06 21:14:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-06 21:14:16,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:16,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:16,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:14:16,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:16,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:16,932 INFO L85 PathProgramCache]: Analyzing trace with hash 689914158, now seen corresponding path program 1 times [2023-11-06 21:14:16,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:16,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461277232] [2023-11-06 21:14:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:16,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:14:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 21:14:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:17,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:17,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461277232] [2023-11-06 21:14:17,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461277232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:17,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:17,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:17,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756000940] [2023-11-06 21:14:17,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:17,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:14:17,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:17,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:14:17,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:14:17,104 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 21:14:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:17,416 INFO L93 Difference]: Finished difference Result 226 states and 288 transitions. [2023-11-06 21:14:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:14:17,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2023-11-06 21:14:17,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:17,419 INFO L225 Difference]: With dead ends: 226 [2023-11-06 21:14:17,419 INFO L226 Difference]: Without dead ends: 157 [2023-11-06 21:14:17,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:14:17,422 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 181 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:17,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 278 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:14:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-06 21:14:17,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2023-11-06 21:14:17,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 122 states have internal predecessors, (145), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-06 21:14:17,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 186 transitions. [2023-11-06 21:14:17,449 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 186 transitions. Word has length 40 [2023-11-06 21:14:17,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:17,450 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 186 transitions. [2023-11-06 21:14:17,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 21:14:17,450 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 186 transitions. [2023-11-06 21:14:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 21:14:17,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:17,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:17,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:14:17,453 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:17,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:17,453 INFO L85 PathProgramCache]: Analyzing trace with hash 603540022, now seen corresponding path program 1 times [2023-11-06 21:14:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:17,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753073401] [2023-11-06 21:14:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:17,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 21:14:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 21:14:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:17,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:17,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753073401] [2023-11-06 21:14:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753073401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:17,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:17,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:14:17,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709908387] [2023-11-06 21:14:17,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:17,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:17,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:17,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:17,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:17,610 INFO L87 Difference]: Start difference. First operand 151 states and 186 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 21:14:17,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:17,869 INFO L93 Difference]: Finished difference Result 302 states and 373 transitions. [2023-11-06 21:14:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:14:17,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-11-06 21:14:17,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:17,872 INFO L225 Difference]: With dead ends: 302 [2023-11-06 21:14:17,872 INFO L226 Difference]: Without dead ends: 159 [2023-11-06 21:14:17,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:14:17,875 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 116 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:17,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 352 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:14:17,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-06 21:14:17,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 149. [2023-11-06 21:14:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 120 states have internal predecessors, (139), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-06 21:14:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 180 transitions. [2023-11-06 21:14:17,899 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 180 transitions. Word has length 46 [2023-11-06 21:14:17,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:17,900 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 180 transitions. [2023-11-06 21:14:17,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 21:14:17,900 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2023-11-06 21:14:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 21:14:17,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:17,902 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:17,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:14:17,903 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:17,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1154968067, now seen corresponding path program 1 times [2023-11-06 21:14:17,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:17,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102521843] [2023-11-06 21:14:17,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:17,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 21:14:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:14:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 21:14:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:14:18,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:18,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102521843] [2023-11-06 21:14:18,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102521843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:18,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:18,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:14:18,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343889621] [2023-11-06 21:14:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:18,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:18,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:18,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:18,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:18,036 INFO L87 Difference]: Start difference. First operand 149 states and 180 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 21:14:18,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:18,243 INFO L93 Difference]: Finished difference Result 300 states and 369 transitions. [2023-11-06 21:14:18,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:14:18,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-06 21:14:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:18,248 INFO L225 Difference]: With dead ends: 300 [2023-11-06 21:14:18,249 INFO L226 Difference]: Without dead ends: 159 [2023-11-06 21:14:18,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:14:18,252 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 64 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:18,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 345 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:14:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-06 21:14:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2023-11-06 21:14:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 115 states have (on average 1.2347826086956522) internal successors, (142), 123 states have internal predecessors, (142), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-06 21:14:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2023-11-06 21:14:18,301 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 56 [2023-11-06 21:14:18,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:18,302 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2023-11-06 21:14:18,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 21:14:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2023-11-06 21:14:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 21:14:18,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:18,307 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:18,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:14:18,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:18,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:18,308 INFO L85 PathProgramCache]: Analyzing trace with hash -453368193, now seen corresponding path program 1 times [2023-11-06 21:14:18,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:18,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662711859] [2023-11-06 21:14:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:18,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 21:14:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:14:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 21:14:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:14:18,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:18,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662711859] [2023-11-06 21:14:18,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662711859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:18,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:18,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:14:18,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964287315] [2023-11-06 21:14:18,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:18,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:14:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:14:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:14:18,482 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 21:14:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:18,677 INFO L93 Difference]: Finished difference Result 306 states and 375 transitions. [2023-11-06 21:14:18,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:14:18,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-06 21:14:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:18,681 INFO L225 Difference]: With dead ends: 306 [2023-11-06 21:14:18,681 INFO L226 Difference]: Without dead ends: 162 [2023-11-06 21:14:18,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:14:18,686 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 142 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:18,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 270 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:14:18,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-06 21:14:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2023-11-06 21:14:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2307692307692308) internal successors, (144), 125 states have internal predecessors, (144), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2023-11-06 21:14:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2023-11-06 21:14:18,714 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 56 [2023-11-06 21:14:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:18,717 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2023-11-06 21:14:18,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 21:14:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2023-11-06 21:14:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 21:14:18,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:18,722 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:18,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:14:18,723 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:18,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:18,723 INFO L85 PathProgramCache]: Analyzing trace with hash -525754751, now seen corresponding path program 1 times [2023-11-06 21:14:18,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:18,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798401571] [2023-11-06 21:14:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 21:14:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:14:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 21:14:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:14:18,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:18,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798401571] [2023-11-06 21:14:18,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798401571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:18,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:18,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:14:18,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510189774] [2023-11-06 21:14:18,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:18,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:14:18,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:18,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:14:18,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:14:18,863 INFO L87 Difference]: Start difference. First operand 154 states and 185 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 21:14:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:19,156 INFO L93 Difference]: Finished difference Result 414 states and 523 transitions. [2023-11-06 21:14:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:14:19,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 3 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 56 [2023-11-06 21:14:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:19,163 INFO L225 Difference]: With dead ends: 414 [2023-11-06 21:14:19,163 INFO L226 Difference]: Without dead ends: 268 [2023-11-06 21:14:19,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:14:19,166 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 201 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:19,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 277 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:14:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-06 21:14:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2023-11-06 21:14:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 201 states have (on average 1.2238805970149254) internal successors, (246), 213 states have internal predecessors, (246), 33 states have call successors, (33), 30 states have call predecessors, (33), 31 states have return successors, (48), 33 states have call predecessors, (48), 33 states have call successors, (48) [2023-11-06 21:14:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 327 transitions. [2023-11-06 21:14:19,200 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 327 transitions. Word has length 56 [2023-11-06 21:14:19,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:19,200 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 327 transitions. [2023-11-06 21:14:19,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 21:14:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 327 transitions. [2023-11-06 21:14:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-06 21:14:19,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:19,203 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:19,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:14:19,203 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:19,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:19,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1987351067, now seen corresponding path program 1 times [2023-11-06 21:14:19,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:19,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490350180] [2023-11-06 21:14:19,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:19,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 21:14:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-06 21:14:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 21:14:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:14:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 21:14:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:19,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:14:19,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:19,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490350180] [2023-11-06 21:14:19,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490350180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:19,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:19,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 21:14:19,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499084466] [2023-11-06 21:14:19,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:19,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 21:14:19,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:19,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 21:14:19,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:14:19,506 INFO L87 Difference]: Start difference. First operand 266 states and 327 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 21:14:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:20,356 INFO L93 Difference]: Finished difference Result 808 states and 1027 transitions. [2023-11-06 21:14:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-06 21:14:20,358 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2023-11-06 21:14:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:20,365 INFO L225 Difference]: With dead ends: 808 [2023-11-06 21:14:20,365 INFO L226 Difference]: Without dead ends: 550 [2023-11-06 21:14:20,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2023-11-06 21:14:20,370 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 305 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:20,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 526 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 21:14:20,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-06 21:14:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 541. [2023-11-06 21:14:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 403 states have (on average 1.1910669975186103) internal successors, (480), 431 states have internal predecessors, (480), 72 states have call successors, (72), 58 states have call predecessors, (72), 65 states have return successors, (111), 71 states have call predecessors, (111), 72 states have call successors, (111) [2023-11-06 21:14:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 663 transitions. [2023-11-06 21:14:20,465 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 663 transitions. Word has length 60 [2023-11-06 21:14:20,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:20,465 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 663 transitions. [2023-11-06 21:14:20,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 21:14:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 663 transitions. [2023-11-06 21:14:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 21:14:20,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:14:20,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-06 21:14:20,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:14:20,470 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:14:20,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:20,470 INFO L85 PathProgramCache]: Analyzing trace with hash 255377162, now seen corresponding path program 1 times [2023-11-06 21:14:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:20,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913325960] [2023-11-06 21:14:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:20,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 21:14:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 21:14:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 21:14:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 21:14:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:14:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 21:14:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 21:14:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 21:14:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:14:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 21:14:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:14:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 21:14:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-06 21:14:20,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:20,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913325960] [2023-11-06 21:14:20,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913325960] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:14:20,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606595331] [2023-11-06 21:14:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:20,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:14:20,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:20,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:14:20,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:14:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:20,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 21:14:20,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:14:21,199 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 21:14:21,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:14:21,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606595331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:21,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:14:21,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2023-11-06 21:14:21,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804068799] [2023-11-06 21:14:21,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:21,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:14:21,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:21,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:14:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-11-06 21:14:21,203 INFO L87 Difference]: Start difference. First operand 541 states and 663 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-06 21:14:21,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:21,402 INFO L93 Difference]: Finished difference Result 1175 states and 1437 transitions. [2023-11-06 21:14:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:14:21,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2023-11-06 21:14:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:14:21,404 INFO L225 Difference]: With dead ends: 1175 [2023-11-06 21:14:21,404 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 21:14:21,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2023-11-06 21:14:21,408 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 59 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:14:21,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 988 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:14:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 21:14:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 21:14:21,411 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) [2023-11-06 21:14:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 21:14:21,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2023-11-06 21:14:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:14:21,412 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:14:21,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-06 21:14:21,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 21:14:21,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 21:14:21,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 21:14:21,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:21,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 21:14:21,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 21:14:24,908 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 566 572) no Hoare annotation was computed. [2023-11-06 21:14:24,908 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 566 572) the Hoare annotation is: true [2023-11-06 21:14:24,908 INFO L899 garLoopResultBuilder]: For program point L830-1(lines 826 837) no Hoare annotation was computed. [2023-11-06 21:14:24,909 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 826 837) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (<= 1 ~methaneLevelCritical~0) (not (= ~pumpRunning~0 0)) .cse0 (< |old(~methaneLevelCritical~0)| 1)) (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) .cse0))) [2023-11-06 21:14:24,909 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 826 837) no Hoare annotation was computed. [2023-11-06 21:14:24,909 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 838 846) the Hoare annotation is: true [2023-11-06 21:14:24,909 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 838 846) no Hoare annotation was computed. [2023-11-06 21:14:24,909 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 838 846) no Hoare annotation was computed. [2023-11-06 21:14:24,909 INFO L895 garLoopResultBuilder]: At program point L944(line 944) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (and .cse5 .cse4)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (and .cse2 .cse5))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) .cse3 (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse4)) (or .cse0 .cse1 .cse3 (< ~methaneLevelCritical~0 1))))) [2023-11-06 21:14:24,909 INFO L899 garLoopResultBuilder]: For program point L944-1(line 944) no Hoare annotation was computed. [2023-11-06 21:14:24,910 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 542 565) no Hoare annotation was computed. [2023-11-06 21:14:24,910 INFO L895 garLoopResultBuilder]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 (< ~methaneLevelCritical~0 1)))) [2023-11-06 21:14:24,910 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2023-11-06 21:14:24,910 INFO L895 garLoopResultBuilder]: At program point L606(line 606) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and .cse0 .cse3) (< ~methaneLevelCritical~0 1)) (or .cse3 .cse1 .cse2))) [2023-11-06 21:14:24,911 INFO L899 garLoopResultBuilder]: For program point L606-1(line 606) no Hoare annotation was computed. [2023-11-06 21:14:24,911 INFO L895 garLoopResultBuilder]: At program point L619(line 619) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 0) (= |old(~pumpRunning~0)| 0) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-11-06 21:14:24,911 INFO L895 garLoopResultBuilder]: At program point L619-1(lines 600 624) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) .cse4 .cse1) (< ~methaneLevelCritical~0 1)) (or (and .cse1 .cse3) .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (and .cse4 .cse1) (not (= ~methaneLevelCritical~0 0)) (and (<= 2 ~waterLevel~0) .cse3))))) [2023-11-06 21:14:24,911 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 553 559) no Hoare annotation was computed. [2023-11-06 21:14:24,911 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 960) no Hoare annotation was computed. [2023-11-06 21:14:24,912 INFO L899 garLoopResultBuilder]: For program point L946(lines 946 963) no Hoare annotation was computed. [2023-11-06 21:14:24,912 INFO L895 garLoopResultBuilder]: At program point L946-1(lines 938 966) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not .cse2)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) (and .cse4 .cse1) (< ~methaneLevelCritical~0 1)) (let ((.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~9#1| 0))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse5) (not (= ~methaneLevelCritical~0 0)) (and .cse4 .cse1 .cse5) (and .cse1 .cse2 .cse5 .cse3) (and (<= 2 ~waterLevel~0) .cse5 .cse3)))))) [2023-11-06 21:14:24,912 INFO L895 garLoopResultBuilder]: At program point __automaton_fail_returnLabel#1(lines 416 423) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1)))) [2023-11-06 21:14:24,912 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 542 565) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-11-06 21:14:24,913 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 810) no Hoare annotation was computed. [2023-11-06 21:14:24,913 INFO L895 garLoopResultBuilder]: At program point L806-2(lines 802 813) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and .cse0 .cse3) (< ~methaneLevelCritical~0 1)) (or .cse3 .cse1 .cse2))) [2023-11-06 21:14:24,913 INFO L899 garLoopResultBuilder]: For program point L546-1(lines 545 564) no Hoare annotation was computed. [2023-11-06 21:14:24,913 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 616) no Hoare annotation was computed. [2023-11-06 21:14:24,913 INFO L895 garLoopResultBuilder]: At program point deactivatePump_returnLabel#1(lines 650 657) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) .cse1 .cse2) (< ~methaneLevelCritical~0 1)) (or .cse0 (and .cse1 .cse2) (not (= ~methaneLevelCritical~0 0))))) [2023-11-06 21:14:24,913 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 621) no Hoare annotation was computed. [2023-11-06 21:14:24,914 INFO L899 garLoopResultBuilder]: For program point L951(lines 951 957) no Hoare annotation was computed. [2023-11-06 21:14:24,914 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 542 565) no Hoare annotation was computed. [2023-11-06 21:14:24,914 INFO L895 garLoopResultBuilder]: At program point isPumpRunning_returnLabel#1(lines 669 677) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_isPumpRunning_#res#1| 0))) (or .cse0 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2) (< ~methaneLevelCritical~0 1))) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2023-11-06 21:14:24,914 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 420) no Hoare annotation was computed. [2023-11-06 21:14:24,914 INFO L899 garLoopResultBuilder]: For program point L448(line 448) no Hoare annotation was computed. [2023-11-06 21:14:24,915 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 427 456) no Hoare annotation was computed. [2023-11-06 21:14:24,915 INFO L899 garLoopResultBuilder]: For program point L441(lines 441 445) no Hoare annotation was computed. [2023-11-06 21:14:24,915 INFO L902 garLoopResultBuilder]: At program point L441-1(lines 441 445) the Hoare annotation is: true [2023-11-06 21:14:24,915 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2023-11-06 21:14:24,915 INFO L902 garLoopResultBuilder]: At program point L437-2(lines 437 451) the Hoare annotation is: true [2023-11-06 21:14:24,915 INFO L902 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: true [2023-11-06 21:14:24,915 INFO L899 garLoopResultBuilder]: For program point L433-1(line 433) no Hoare annotation was computed. [2023-11-06 21:14:24,916 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 427 456) the Hoare annotation is: true [2023-11-06 21:14:24,916 INFO L902 garLoopResultBuilder]: At program point L452(lines 427 456) the Hoare annotation is: true [2023-11-06 21:14:24,916 INFO L895 garLoopResultBuilder]: At program point L766(line 766) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2023-11-06 21:14:24,916 INFO L895 garLoopResultBuilder]: At program point L787(lines 744 789) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2023-11-06 21:14:24,916 INFO L899 garLoopResultBuilder]: For program point L754(lines 754 760) no Hoare annotation was computed. [2023-11-06 21:14:24,916 INFO L899 garLoopResultBuilder]: For program point L754-1(lines 754 760) no Hoare annotation was computed. [2023-11-06 21:14:24,917 INFO L902 garLoopResultBuilder]: At program point runTest_returnLabel#1(lines 493 503) the Hoare annotation is: true [2023-11-06 21:14:24,917 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 750) no Hoare annotation was computed. [2023-11-06 21:14:24,917 INFO L895 garLoopResultBuilder]: At program point select_features_returnLabel#1(lines 905 911) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2023-11-06 21:14:24,917 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 507 529) the Hoare annotation is: true [2023-11-06 21:14:24,917 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 21:14:24,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 21:14:24,918 INFO L899 garLoopResultBuilder]: For program point L780(lines 780 784) no Hoare annotation was computed. [2023-11-06 21:14:24,918 INFO L895 garLoopResultBuilder]: At program point L780-2(lines 774 785) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1))) [2023-11-06 21:14:24,918 INFO L895 garLoopResultBuilder]: At program point setup_returnLabel#1(lines 484 490) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2023-11-06 21:14:24,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 21:14:24,918 INFO L899 garLoopResultBuilder]: For program point L764(lines 764 770) no Hoare annotation was computed. [2023-11-06 21:14:24,918 INFO L899 garLoopResultBuilder]: For program point L764-1(lines 764 770) no Hoare annotation was computed. [2023-11-06 21:14:24,919 INFO L902 garLoopResultBuilder]: At program point L793(lines 734 797) the Hoare annotation is: true [2023-11-06 21:14:24,919 INFO L895 garLoopResultBuilder]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2023-11-06 21:14:24,919 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 21:14:24,919 INFO L895 garLoopResultBuilder]: At program point select_helpers_returnLabel#1(lines 912 918) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2023-11-06 21:14:24,919 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 524) no Hoare annotation was computed. [2023-11-06 21:14:24,919 INFO L899 garLoopResultBuilder]: For program point L517-2(lines 517 524) no Hoare annotation was computed. [2023-11-06 21:14:24,920 INFO L895 garLoopResultBuilder]: At program point __utac_acc__Specification2_spec__1_returnLabel#1(lines 930 937) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2023-11-06 21:14:24,920 INFO L895 garLoopResultBuilder]: At program point L790(lines 743 791) the Hoare annotation is: false [2023-11-06 21:14:24,920 INFO L895 garLoopResultBuilder]: At program point valid_product_returnLabel#1(lines 919 927) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2023-11-06 21:14:24,920 INFO L899 garLoopResultBuilder]: For program point L745(lines 744 789) no Hoare annotation was computed. [2023-11-06 21:14:24,920 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 785) no Hoare annotation was computed. [2023-11-06 21:14:24,920 INFO L899 garLoopResultBuilder]: For program point L818-1(lines 814 825) no Hoare annotation was computed. [2023-11-06 21:14:24,920 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 814 825) no Hoare annotation was computed. [2023-11-06 21:14:24,921 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 814 825) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (< ~methaneLevelCritical~0 1)))) [2023-11-06 21:14:24,921 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 646) no Hoare annotation was computed. [2023-11-06 21:14:24,921 INFO L895 garLoopResultBuilder]: At program point L638(line 638) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse3 (= 1 ~systemActive~0))) (let ((.cse1 (not .cse3)) (.cse2 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse3 .cse0))) (and (or (not .cse0) .cse1 .cse2 (< ~methaneLevelCritical~0 1)) (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)))) [2023-11-06 21:14:24,921 INFO L895 garLoopResultBuilder]: At program point L640-2(lines 633 649) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (and (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~6#1| ~methaneLevelCritical~0)) (< ~methaneLevelCritical~0 1)) (or .cse0 .cse3 .cse2))) [2023-11-06 21:14:24,922 INFO L899 garLoopResultBuilder]: For program point L638-1(line 638) no Hoare annotation was computed. [2023-11-06 21:14:24,922 INFO L899 garLoopResultBuilder]: For program point L723(lines 723 727) no Hoare annotation was computed. [2023-11-06 21:14:24,922 INFO L899 garLoopResultBuilder]: For program point L723-2(lines 723 727) no Hoare annotation was computed. [2023-11-06 21:14:24,922 INFO L895 garLoopResultBuilder]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 .cse0 (< ~methaneLevelCritical~0 1)) (or .cse2 .cse0 .cse1))) [2023-11-06 21:14:24,922 INFO L899 garLoopResultBuilder]: For program point L593-1(lines 574 598) no Hoare annotation was computed. [2023-11-06 21:14:24,922 INFO L895 garLoopResultBuilder]: At program point activatePump__wrappee__highWaterSensor_returnLabel#1(lines 625 632) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (not .cse1) .cse0 (< ~methaneLevelCritical~0 1)) (or .cse0 (<= 2 ~waterLevel~0) .cse2))) [2023-11-06 21:14:24,923 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 574 598) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (< ~methaneLevelCritical~0 1)))) [2023-11-06 21:14:24,923 INFO L895 garLoopResultBuilder]: At program point isHighWaterSensorDry_returnLabel#1(lines 879 892) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse6 (= 1 ~systemActive~0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not .cse6)) (.cse3 (and .cse5 (<= 2 ~waterLevel~0) .cse6 .cse1)) (.cse4 (and .cse5 (not (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0))))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse2 .cse3 .cse4) (or (not .cse1) .cse0 .cse3 .cse4 (< ~methaneLevelCritical~0 1))))) [2023-11-06 21:14:24,923 INFO L895 garLoopResultBuilder]: At program point isHighWaterLevel_returnLabel#1(lines 714 732) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse5 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse5)) (.cse1 (and .cse4 (<= 2 ~waterLevel~0) .cse5 .cse3)) (.cse2 (and .cse4 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~0#1| 0) .cse5 (not (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~7#1| 0)) .cse3 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2) (or (not .cse3) .cse0 .cse1 .cse2 (< ~methaneLevelCritical~0 1))))) [2023-11-06 21:14:24,923 INFO L899 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2023-11-06 21:14:24,923 INFO L895 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse3)) (.cse1 (and (= ~pumpRunning~0 0) .cse3 .cse2 (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (not .cse2) .cse0 .cse1 (< ~methaneLevelCritical~0 1))))) [2023-11-06 21:14:24,924 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 574 598) no Hoare annotation was computed. [2023-11-06 21:14:24,924 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 590) no Hoare annotation was computed. [2023-11-06 21:14:24,924 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 595) no Hoare annotation was computed. [2023-11-06 21:14:24,924 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 658 668) no Hoare annotation was computed. [2023-11-06 21:14:24,924 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 658 668) the Hoare annotation is: true [2023-11-06 21:14:24,924 INFO L902 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: true [2023-11-06 21:14:24,925 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 658 668) no Hoare annotation was computed. [2023-11-06 21:14:24,925 INFO L899 garLoopResultBuilder]: For program point L663-1(line 663) no Hoare annotation was computed. [2023-11-06 21:14:24,927 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:14:24,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:14:24,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:14:24 BoogieIcfgContainer [2023-11-06 21:14:24,984 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:14:24,985 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:14:24,985 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:14:24,985 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:14:24,986 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:15" (3/4) ... [2023-11-06 21:14:24,988 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:14:24,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-06 21:14:24,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-06 21:14:24,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-06 21:14:24,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-06 21:14:24,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-06 21:14:24,992 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-06 21:14:24,993 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2023-11-06 21:14:24,993 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2023-11-06 21:14:25,007 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 21:14:25,007 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-06 21:14:25,008 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 21:14:25,009 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:14:25,009 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:14:25,041 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) && ((!((1 == systemActive)) || ((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0)))) || (methaneLevelCritical < 1))) && ((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,042 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel))) || (((1 <= tmp) && !((\old(pumpRunning) == 0))) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && (((((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || ((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0)))) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || !((methaneLevelCritical == 0))) || ((2 <= waterLevel) && (\old(waterLevel) == waterLevel)))) [2023-11-06 21:14:25,044 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel))) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && (((((!((1 == systemActive)) || (((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0))) && (tmp == 0))) || !((methaneLevelCritical == 0))) || ((!((\old(pumpRunning) == 0)) && (pumpRunning == 0)) && (tmp == 0))) || ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (tmp == 0)) && (\old(waterLevel) == waterLevel))) || (((2 <= waterLevel) && (tmp == 0)) && (\old(waterLevel) == waterLevel)))) [2023-11-06 21:14:25,044 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!((1 == systemActive)) || (((1 <= tmp) && !((\old(pumpRunning) == 0))) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && ((!((1 == systemActive)) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,045 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\result == 0)) && (\old(waterLevel) == waterLevel))) || ((!((\old(pumpRunning) == 0)) && (pumpRunning == 0)) && (\result == 0))) || (methaneLevelCritical < 1)) && (!((1 == systemActive)) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,045 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && (((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || (((pumpRunning == 0) && (2 <= waterLevel)) && (tmp == methaneLevelCritical))) || (methaneLevelCritical < 1))) && ((!((1 == systemActive)) || (2 <= waterLevel)) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,046 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && ((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || (methaneLevelCritical < 1))) && ((!((1 == systemActive)) || (2 <= waterLevel)) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,046 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && (((!((1 == systemActive)) || !((methaneLevelCritical == 0))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((pumpRunning == 0) && !((\result == 0))))) && ((((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((pumpRunning == 0) && !((\result == 0)))) || (methaneLevelCritical < 1))) [2023-11-06 21:14:25,047 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || !((methaneLevelCritical == 0))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((((pumpRunning == 0) && (tmp___0 == 0)) && (1 == systemActive)) && !((tmp == 0))) && (\old(pumpRunning) == 0)) && (\result == 0))) && ((((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((((pumpRunning == 0) && (tmp___0 == 0)) && (1 == systemActive)) && !((tmp == 0))) && (\old(pumpRunning) == 0)) && (\result == 0))) || (methaneLevelCritical < 1))) [2023-11-06 21:14:25,105 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) && ((!((1 == systemActive)) || ((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0)))) || (methaneLevelCritical < 1))) && ((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,105 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel))) || (((1 <= tmp) && !((\old(pumpRunning) == 0))) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && (((((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || ((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0)))) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || !((methaneLevelCritical == 0))) || ((2 <= waterLevel) && (\old(waterLevel) == waterLevel)))) [2023-11-06 21:14:25,106 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel))) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && (((((!((1 == systemActive)) || (((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0))) && (tmp == 0))) || !((methaneLevelCritical == 0))) || ((!((\old(pumpRunning) == 0)) && (pumpRunning == 0)) && (tmp == 0))) || ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (tmp == 0)) && (\old(waterLevel) == waterLevel))) || (((2 <= waterLevel) && (tmp == 0)) && (\old(waterLevel) == waterLevel)))) [2023-11-06 21:14:25,106 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!((1 == systemActive)) || (((1 <= tmp) && !((\old(pumpRunning) == 0))) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && ((!((1 == systemActive)) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,107 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\result == 0)) && (\old(waterLevel) == waterLevel))) || ((!((\old(pumpRunning) == 0)) && (pumpRunning == 0)) && (\result == 0))) || (methaneLevelCritical < 1)) && (!((1 == systemActive)) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,107 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && (((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || (((pumpRunning == 0) && (2 <= waterLevel)) && (tmp == methaneLevelCritical))) || (methaneLevelCritical < 1))) && ((!((1 == systemActive)) || (2 <= waterLevel)) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,107 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && ((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || (methaneLevelCritical < 1))) && ((!((1 == systemActive)) || (2 <= waterLevel)) || !((methaneLevelCritical == 0)))) [2023-11-06 21:14:25,107 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && (((!((1 == systemActive)) || !((methaneLevelCritical == 0))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((pumpRunning == 0) && !((\result == 0))))) && ((((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((pumpRunning == 0) && !((\result == 0)))) || (methaneLevelCritical < 1))) [2023-11-06 21:14:25,108 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!((1 == systemActive)) || !((methaneLevelCritical == 0))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((((pumpRunning == 0) && (tmp___0 == 0)) && (1 == systemActive)) && !((tmp == 0))) && (\old(pumpRunning) == 0)) && (\result == 0))) && ((((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((((pumpRunning == 0) && (tmp___0 == 0)) && (1 == systemActive)) && !((tmp == 0))) && (\old(pumpRunning) == 0)) && (\result == 0))) || (methaneLevelCritical < 1))) [2023-11-06 21:14:25,142 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:14:25,143 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:14:25,143 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:14:25,144 INFO L158 Benchmark]: Toolchain (without parser) took 10558.66ms. Allocated memory was 136.3MB in the beginning and 205.5MB in the end (delta: 69.2MB). Free memory was 95.8MB in the beginning and 150.0MB in the end (delta: -54.2MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,144 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:14:25,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.70ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 76.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.74ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,145 INFO L158 Benchmark]: Boogie Preprocessor took 31.05ms. Allocated memory is still 136.3MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,146 INFO L158 Benchmark]: RCFGBuilder took 551.82ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 72.4MB in the beginning and 129.1MB in the end (delta: -56.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,147 INFO L158 Benchmark]: TraceAbstraction took 9258.05ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 128.0MB in the beginning and 158.4MB in the end (delta: -30.3MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,148 INFO L158 Benchmark]: Witness Printer took 158.32ms. Allocated memory is still 205.5MB. Free memory was 158.4MB in the beginning and 150.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:14:25,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.70ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 76.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.74ms. Allocated memory is still 136.3MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.05ms. Allocated memory is still 136.3MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.82ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 72.4MB in the beginning and 129.1MB in the end (delta: -56.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9258.05ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 128.0MB in the beginning and 158.4MB in the end (delta: -30.3MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. * Witness Printer took 158.32ms. Allocated memory is still 205.5MB. Free memory was 158.4MB in the beginning and 150.0MB in the end (delta: 8.4MB). 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,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [424] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [530] - GenericResultAtLocation [Line: 733]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [733] - GenericResultAtLocation [Line: 798]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [798] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] - GenericResultAtLocation [Line: 928]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [928] * 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: 420]: 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, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1197 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1160 mSDsluCounter, 3433 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2415 mSDsCounter, 313 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1378 IncrementalHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 313 mSolverCounterUnsat, 1018 mSDtfsCounter, 1378 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=541occurred in iteration=9, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 42 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 1072 PreInvPairs, 1344 NumberOfFragments, 1132 HoareAnnotationTreeSize, 1072 FomulaSimplifications, 3502 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 8266 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 611 NumberOfCodeBlocks, 611 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 600 ConstructedInterpolants, 0 QuantifiedInterpolants, 1108 SizeOfPredicates, 3 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 88/100 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: 938]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel))) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && (((((!((1 == systemActive)) || (((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0))) && (tmp == 0))) || !((methaneLevelCritical == 0))) || ((!((\old(pumpRunning) == 0)) && (pumpRunning == 0)) && (tmp == 0))) || ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (tmp == 0)) && (\old(waterLevel) == waterLevel))) || (((2 <= waterLevel) && (tmp == 0)) && (\old(waterLevel) == waterLevel)))) - InvariantResult [Line: 484]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel == 1)) - InvariantResult [Line: 744]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && (((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || (((pumpRunning == 0) && (2 <= waterLevel)) && (tmp == methaneLevelCritical))) || (methaneLevelCritical < 1))) && ((!((1 == systemActive)) || (2 <= waterLevel)) || !((methaneLevelCritical == 0)))) - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel == 1)) - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: ((!((1 == systemActive)) || !((methaneLevelCritical == 0))) && (!((1 == systemActive)) || (methaneLevelCritical < 1))) - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel == 1)) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel == 1)) - InvariantResult [Line: 734]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (waterLevel == 1)) - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && ((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || (methaneLevelCritical < 1))) && ((!((1 == systemActive)) || (2 <= waterLevel)) || !((methaneLevelCritical == 0)))) - InvariantResult [Line: 507]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\result == 0)) && (\old(waterLevel) == waterLevel))) || ((!((\old(pumpRunning) == 0)) && (pumpRunning == 0)) && (\result == 0))) || (methaneLevelCritical < 1)) && (!((1 == systemActive)) || !((methaneLevelCritical == 0)))) - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || (\old(pumpRunning) == 0)) || !((methaneLevelCritical == 0))) && (((!((1 == systemActive)) || !((methaneLevelCritical == 0))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((pumpRunning == 0) && !((\result == 0))))) && ((((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((pumpRunning == 0) && !((\result == 0)))) || (methaneLevelCritical < 1))) - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning)) || !((1 == systemActive))) || !((methaneLevelCritical == 0))) && ((!((1 == systemActive)) || ((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0)))) || (methaneLevelCritical < 1))) && ((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || !((methaneLevelCritical == 0)))) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || (((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel))) || (((1 <= tmp) && !((\old(pumpRunning) == 0))) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && (((((((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || !((1 == systemActive))) || ((pumpRunning == \old(pumpRunning)) && !((\old(pumpRunning) == 0)))) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || !((methaneLevelCritical == 0))) || ((2 <= waterLevel) && (\old(waterLevel) == waterLevel)))) - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: (((!((1 == systemActive)) || (((1 <= tmp) && !((\old(pumpRunning) == 0))) && (pumpRunning == 0))) || (methaneLevelCritical < 1)) && ((!((1 == systemActive)) || (!((\old(pumpRunning) == 0)) && (pumpRunning == 0))) || !((methaneLevelCritical == 0)))) - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: ((((!((1 == systemActive)) || !((methaneLevelCritical == 0))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((((pumpRunning == 0) && (tmp___0 == 0)) && (1 == systemActive)) && !((tmp == 0))) && (\old(pumpRunning) == 0)) && (\result == 0))) && ((((!((\old(pumpRunning) == 0)) || !((1 == systemActive))) || ((((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (\old(pumpRunning) == 0))) || ((((((pumpRunning == 0) && (tmp___0 == 0)) && (1 == systemActive)) && !((tmp == 0))) && (\old(pumpRunning) == 0)) && (\result == 0))) || (methaneLevelCritical < 1))) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-06 21:14:25,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6256f5d-1a83-4ffb-8a65-fa660e169050/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE