./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/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_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:15:48,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:15:48,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:15:48,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:15:48,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:15:48,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:15:48,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:15:48,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:15:48,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:15:48,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:15:48,247 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:15:48,248 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:15:48,249 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:15:48,250 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:15:48,250 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:15:48,251 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:15:48,252 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:15:48,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:15:48,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:15:48,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:15:48,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:15:48,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:15:48,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:15:48,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:15:48,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:15:48,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:15:48,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:15:48,259 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:15:48,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:15:48,260 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:15:48,261 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:15:48,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:15:48,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:15:48,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:15:48,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:15:48,264 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:15:48,264 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_346695d2-2771-431f-b13e-909a9c572acf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2023-11-06 22:15:48,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:15:48,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:15:48,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:15:48,624 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:15:48,625 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:15:48,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2023-11-06 22:15:51,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:15:52,123 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:15:52,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2023-11-06 22:15:52,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/data/d9a1be6a7/4221eb30f02c47029e79ba6cf4bd521b/FLAGefe21cd32 [2023-11-06 22:15:52,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/data/d9a1be6a7/4221eb30f02c47029e79ba6cf4bd521b [2023-11-06 22:15:52,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:15:52,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:15:52,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:15:52,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:15:52,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:15:52,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514dc583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52, skipping insertion in model container [2023-11-06 22:15:52,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:15:52,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:15:52,566 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:15:52,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-06 22:15:52,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2023-11-06 22:15:52,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [526] [2023-11-06 22:15:52,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [628] [2023-11-06 22:15:52,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [663] [2023-11-06 22:15:52,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] [2023-11-06 22:15:52,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] [2023-11-06 22:15:52,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] [2023-11-06 22:15:52,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:15:52,687 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:15:52,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52 WrapperNode [2023-11-06 22:15:52,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:15:52,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:15:52,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:15:52,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:15:52,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,774 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 103, statements flattened = 715 [2023-11-06 22:15:52,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:15:52,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:15:52,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:15:52,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:15:52,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:15:52,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:15:52,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:15:52,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:15:52,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (1/1) ... [2023-11-06 22:15:52,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:15:52,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:52,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:15:52,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:15:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:15:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:15:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:15:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:15:53,036 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:15:53,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:15:53,691 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:15:53,704 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:15:53,704 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:15:53,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:53 BoogieIcfgContainer [2023-11-06 22:15:53,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:15:53,709 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:15:53,709 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:15:53,723 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:15:53,724 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:15:53,724 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:15:52" (1/3) ... [2023-11-06 22:15:53,725 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45bd5003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:15:53, skipping insertion in model container [2023-11-06 22:15:53,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:15:53,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:15:52" (2/3) ... [2023-11-06 22:15:53,726 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45bd5003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:15:53, skipping insertion in model container [2023-11-06 22:15:53,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:15:53,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:53" (3/3) ... [2023-11-06 22:15:53,728 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2023-11-06 22:15:53,799 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:15:53,800 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:15:53,800 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:15:53,800 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:15:53,800 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:15:53,800 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:15:53,801 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:15:53,801 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:15:53,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 199 states, 198 states have (on average 1.3585858585858586) internal successors, (269), 198 states have internal predecessors, (269), 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 22:15:53,844 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2023-11-06 22:15:53,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:53,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:53,853 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:53,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:53,854 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:15:53,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 199 states, 198 states have (on average 1.3585858585858586) internal successors, (269), 198 states have internal predecessors, (269), 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 22:15:53,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2023-11-06 22:15:53,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:53,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:53,868 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:53,868 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:53,874 INFO L748 eck$LassoCheckResult]: Stem: 126#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 132#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 20#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 181#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 82#valid_product_returnLabel#1true main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 113#L615true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 63#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 184#L720-2true [2023-11-06 22:15:53,875 INFO L750 eck$LassoCheckResult]: Loop: 184#L720-2true assume !false; 74#L721true assume test_~splverifierCounter~0#1 < 4; 54#L722true havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 49#L730true assume !(0 != test_~tmp~5#1); 140#L730-2true havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 137#L740true assume !(0 != test_~tmp___0~1#1); 26#L740-2true havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 177#L750true assume 0 != test_~tmp___2~0#1; 143#L756-2true assume { :begin_inline_timeShift } true; 12#L786true assume !(0 != ~pumpRunning~0); 134#L786-2true assume !(0 != ~systemActive~0); 21#L793-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 64#isMethaneLevelCritical_returnLabel#3true __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 57#L675true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 95#L681-1true havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 149#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 184#L720-2true [2023-11-06 22:15:53,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:53,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-06 22:15:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030871352] [2023-11-06 22:15:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:54,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:54,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:54,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1086879734, now seen corresponding path program 1 times [2023-11-06 22:15:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:54,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978891573] [2023-11-06 22:15:54,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:54,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:54,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:54,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:54,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:54,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1852668486, now seen corresponding path program 1 times [2023-11-06 22:15:54,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:54,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989810] [2023-11-06 22:15:54,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:54,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:54,488 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 22:15:54,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:54,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989810] [2023-11-06 22:15:54,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:54,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:54,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:15:54,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356992074] [2023-11-06 22:15:54,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:54,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:15:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:15:54,689 INFO L87 Difference]: Start difference. First operand has 199 states, 198 states have (on average 1.3585858585858586) internal successors, (269), 198 states have internal predecessors, (269), 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) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 22:15:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:54,913 INFO L93 Difference]: Finished difference Result 449 states and 590 transitions. [2023-11-06 22:15:54,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 590 transitions. [2023-11-06 22:15:54,927 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2023-11-06 22:15:54,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 419 states and 560 transitions. [2023-11-06 22:15:54,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2023-11-06 22:15:54,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2023-11-06 22:15:54,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 560 transitions. [2023-11-06 22:15:54,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:54,946 INFO L218 hiAutomatonCegarLoop]: Abstraction has 419 states and 560 transitions. [2023-11-06 22:15:54,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 560 transitions. [2023-11-06 22:15:54,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 241. [2023-11-06 22:15:54,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 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 22:15:54,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 322 transitions. [2023-11-06 22:15:55,001 INFO L240 hiAutomatonCegarLoop]: Abstraction has 241 states and 322 transitions. [2023-11-06 22:15:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:15:55,007 INFO L428 stractBuchiCegarLoop]: Abstraction has 241 states and 322 transitions. [2023-11-06 22:15:55,008 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:15:55,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 322 transitions. [2023-11-06 22:15:55,011 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2023-11-06 22:15:55,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:55,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:55,013 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:55,013 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:55,014 INFO L748 eck$LassoCheckResult]: Stem: 746#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 747#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 731#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 732#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 835#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 685#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 686#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 799#L720-2 [2023-11-06 22:15:55,014 INFO L750 eck$LassoCheckResult]: Loop: 799#L720-2 assume !false; 828#L721 assume test_~splverifierCounter~0#1 < 4; 795#L722 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 785#L730 assume !(0 != test_~tmp~5#1); 778#L730-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 775#L740 assume !(0 != test_~tmp___0~1#1); 710#L740-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 745#L750 assume 0 != test_~tmp___2~0#1; 788#L756-2 assume { :begin_inline_timeShift } true; 703#L786 assume !(0 != ~pumpRunning~0); 704#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 768#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 739#L818-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 668#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 669#L818-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 790#L844-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 733#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 734#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 810#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 801#L681-1 havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 798#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 799#L720-2 [2023-11-06 22:15:55,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-06 22:15:55,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:55,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748530989] [2023-11-06 22:15:55,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:55,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:55,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:55,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:55,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1122641324, now seen corresponding path program 1 times [2023-11-06 22:15:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:55,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626033365] [2023-11-06 22:15:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:55,117 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 22:15:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:55,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626033365] [2023-11-06 22:15:55,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626033365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:55,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:55,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:15:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065329590] [2023-11-06 22:15:55,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:55,145 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:15:55,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:55,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:15:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:15:55,147 INFO L87 Difference]: Start difference. First operand 241 states and 322 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22:15:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:55,315 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2023-11-06 22:15:55,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 388 transitions. [2023-11-06 22:15:55,321 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2023-11-06 22:15:55,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 303 states and 388 transitions. [2023-11-06 22:15:55,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2023-11-06 22:15:55,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 303 [2023-11-06 22:15:55,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 388 transitions. [2023-11-06 22:15:55,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:55,336 INFO L218 hiAutomatonCegarLoop]: Abstraction has 303 states and 388 transitions. [2023-11-06 22:15:55,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 388 transitions. [2023-11-06 22:15:55,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2023-11-06 22:15:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 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 22:15:55,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 388 transitions. [2023-11-06 22:15:55,355 INFO L240 hiAutomatonCegarLoop]: Abstraction has 303 states and 388 transitions. [2023-11-06 22:15:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:15:55,357 INFO L428 stractBuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2023-11-06 22:15:55,357 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:15:55,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 388 transitions. [2023-11-06 22:15:55,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2023-11-06 22:15:55,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:55,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:55,362 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:55,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2023-11-06 22:15:55,362 INFO L748 eck$LassoCheckResult]: Stem: 1294#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1281#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1282#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1392#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1235#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1236#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1348#L720-2 [2023-11-06 22:15:55,363 INFO L750 eck$LassoCheckResult]: Loop: 1348#L720-2 assume !false; 1385#L721 assume test_~splverifierCounter~0#1 < 4; 1349#L722 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1334#L730 assume !(0 != test_~tmp~5#1); 1326#L730-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1324#L740 assume !(0 != test_~tmp___0~1#1); 1258#L740-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1293#L750 assume 0 != test_~tmp___2~0#1; 1338#L756-2 assume { :begin_inline_timeShift } true; 1250#L786 assume !(0 != ~pumpRunning~0); 1251#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1317#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1287#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1262#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1263#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1302#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1231#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1232#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1312#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1303#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1304#L818-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1340#L844-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1279#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1280#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 1362#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1352#L681-1 havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1347#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1348#L720-2 [2023-11-06 22:15:55,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-06 22:15:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:55,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431736911] [2023-11-06 22:15:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:55,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:55,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:55,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:55,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1041193604, now seen corresponding path program 1 times [2023-11-06 22:15:55,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:55,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774149984] [2023-11-06 22:15:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:55,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:55,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:55,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:55,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:55,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1416481344, now seen corresponding path program 1 times [2023-11-06 22:15:55,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:55,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510836536] [2023-11-06 22:15:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:55,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:55,507 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 22:15:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:55,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510836536] [2023-11-06 22:15:55,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510836536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:55,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:55,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:15:55,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484742340] [2023-11-06 22:15:55,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:55,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:55,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:15:55,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:15:55,762 INFO L87 Difference]: Start difference. First operand 303 states and 388 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 22:15:55,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:55,937 INFO L93 Difference]: Finished difference Result 751 states and 956 transitions. [2023-11-06 22:15:55,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 751 states and 956 transitions. [2023-11-06 22:15:55,947 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 555 [2023-11-06 22:15:55,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 751 states to 751 states and 956 transitions. [2023-11-06 22:15:55,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 751 [2023-11-06 22:15:55,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 751 [2023-11-06 22:15:55,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 751 states and 956 transitions. [2023-11-06 22:15:55,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:15:55,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 751 states and 956 transitions. [2023-11-06 22:15:55,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states and 956 transitions. [2023-11-06 22:15:55,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 599. [2023-11-06 22:15:56,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 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 22:15:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 757 transitions. [2023-11-06 22:15:56,006 INFO L240 hiAutomatonCegarLoop]: Abstraction has 599 states and 757 transitions. [2023-11-06 22:15:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:15:56,008 INFO L428 stractBuchiCegarLoop]: Abstraction has 599 states and 757 transitions. [2023-11-06 22:15:56,008 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:15:56,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 599 states and 757 transitions. [2023-11-06 22:15:56,013 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 430 [2023-11-06 22:15:56,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:15:56,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:15:56,019 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:56,020 INFO L149 hiAutomatonCegarLoop]: Counterexample loop 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] [2023-11-06 22:15:56,020 INFO L748 eck$LassoCheckResult]: Stem: 2365#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2366#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2352#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2353#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2493#valid_product_returnLabel#1 main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2303#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2304#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2434#L720-2 [2023-11-06 22:15:56,020 INFO L750 eck$LassoCheckResult]: Loop: 2434#L720-2 assume !false; 2486#L721 assume test_~splverifierCounter~0#1 < 4; 2430#L722 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2417#L730 assume !(0 != test_~tmp~5#1); 2408#L730-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2402#L740 assume !(0 != test_~tmp___0~1#1); 2403#L740-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2515#L750 assume 0 != test_~tmp___2~0#1; 2423#L756-2 assume { :begin_inline_timeShift } true; 2326#L786 assume !(0 != ~pumpRunning~0); 2327#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2722#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2720#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2718#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2716#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2713#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2711#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2708#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2702#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2375#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2376#L818-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2425#L844-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 2350#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2351#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 2452#L675 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2431#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 2432#L681 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2524#L681-1 havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2433#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2434#L720-2 [2023-11-06 22:15:56,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-06 22:15:56,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:56,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156333065] [2023-11-06 22:15:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:56,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:56,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:56,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:56,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -139131431, now seen corresponding path program 1 times [2023-11-06 22:15:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:56,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117021889] [2023-11-06 22:15:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:56,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:56,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:56,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:56,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:56,088 INFO L85 PathProgramCache]: Analyzing trace with hash -264866155, now seen corresponding path program 1 times [2023-11-06 22:15:56,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:56,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920773166] [2023-11-06 22:15:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:56,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:56,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:56,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:15:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:57,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:15:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:15:57,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:15:57 BoogieIcfgContainer [2023-11-06 22:15:57,527 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:15:57,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:15:57,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:15:57,528 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:15:57,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:53" (3/4) ... [2023-11-06 22:15:57,530 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:15:57,585 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:15:57,585 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:15:57,586 INFO L158 Benchmark]: Toolchain (without parser) took 5417.42ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 91.9MB in the beginning and 124.8MB in the end (delta: -32.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,586 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:57,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.69ms. Allocated memory is still 159.4MB. Free memory was 91.7MB in the beginning and 113.0MB in the end (delta: -21.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.65ms. Allocated memory is still 159.4MB. Free memory was 113.0MB in the beginning and 109.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,587 INFO L158 Benchmark]: Boogie Preprocessor took 49.17ms. Allocated memory is still 159.4MB. Free memory was 109.4MB in the beginning and 106.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,588 INFO L158 Benchmark]: RCFGBuilder took 881.84ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 106.6MB in the end (delta: 241.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,588 INFO L158 Benchmark]: BuchiAutomizer took 3818.64ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 106.6MB in the beginning and 127.9MB in the end (delta: -21.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,589 INFO L158 Benchmark]: Witness Printer took 57.34ms. Allocated memory is still 195.0MB. Free memory was 127.9MB in the beginning and 124.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:15:57,591 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.69ms. Allocated memory is still 159.4MB. Free memory was 91.7MB in the beginning and 113.0MB in the end (delta: -21.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.65ms. Allocated memory is still 159.4MB. Free memory was 113.0MB in the beginning and 109.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.17ms. Allocated memory is still 159.4MB. Free memory was 109.4MB in the beginning and 106.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 881.84ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 106.6MB in the end (delta: 241.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3818.64ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 106.6MB in the beginning and 127.9MB in the end (delta: -21.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Witness Printer took 57.34ms. Allocated memory is still 195.0MB. Free memory was 127.9MB in the beginning and 124.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"Environment.i","") [415] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [526] - GenericResultAtLocation [Line: 628]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [628] - GenericResultAtLocation [Line: 663]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [663] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] - GenericResultAtLocation [Line: 708]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] - GenericResultAtLocation [Line: 776]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 599 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 330 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1678 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1678 mSDsluCounter, 2882 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2036 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 846 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 720]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 720]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:15:57,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_346695d2-2771-431f-b13e-909a9c572acf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)