./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 750fa47004e8b71818a419cd0705c167dc764081be79a2bed3ff642b9979f0ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:28,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:28,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:04:28,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:28,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:28,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:28,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:28,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:28,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:28,577 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:28,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:28,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:28,578 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:28,581 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:04:28,581 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:04:28,582 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:04:28,582 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:04:28,583 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:04:28,583 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:04:28,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:28,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:04:28,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:28,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:28,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:28,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:28,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:04:28,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:04:28,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:04:28,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:28,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:28,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:28,590 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:04:28,590 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:28,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:28,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:28,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:28,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:28,592 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:04:28,592 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_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750fa47004e8b71818a419cd0705c167dc764081be79a2bed3ff642b9979f0ab [2023-11-26 12:04:28,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:28,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:28,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:28,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:28,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:28,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2023-11-26 12:04:32,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:32,387 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:32,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2023-11-26 12:04:32,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/data/daa04a1e8/f4f1337234a04b8fa8d0bbbc09c3f91b/FLAGb5e8b73f9 [2023-11-26 12:04:32,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/data/daa04a1e8/f4f1337234a04b8fa8d0bbbc09c3f91b [2023-11-26 12:04:32,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:32,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:32,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:32,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:32,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:32,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d00ae4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32, skipping insertion in model container [2023-11-26 12:04:32,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,544 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:32,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:32,873 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:32,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-26 12:04:32,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [121] [2023-11-26 12:04:32,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] [2023-11-26 12:04:32,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [389] [2023-11-26 12:04:32,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [755] [2023-11-26 12:04:32,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [791] [2023-11-26 12:04:32,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [800] [2023-11-26 12:04:32,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [894] [2023-11-26 12:04:32,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:32,984 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:32,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32 WrapperNode [2023-11-26 12:04:32,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:32,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:32,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:32,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:32,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,047 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 49, calls inlined = 54, statements flattened = 375 [2023-11-26 12:04:33,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:33,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:33,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:33,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:33,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,081 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:04:33,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:33,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:33,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:33,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:33,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:33,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:04:33,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:33,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:33,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:04:33,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:33,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:33,402 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:33,408 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:33,862 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:33,875 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:33,875 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:04:33,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:33 BoogieIcfgContainer [2023-11-26 12:04:33,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:33,878 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:04:33,878 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:04:33,882 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:04:33,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:04:33,883 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:04:32" (1/3) ... [2023-11-26 12:04:33,884 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a8f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:04:33, skipping insertion in model container [2023-11-26 12:04:33,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:04:33,885 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (2/3) ... [2023-11-26 12:04:33,885 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a8f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:04:33, skipping insertion in model container [2023-11-26 12:04:33,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:04:33,885 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:33" (3/3) ... [2023-11-26 12:04:33,887 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2023-11-26 12:04:33,949 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:04:33,950 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:04:33,950 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:04:33,950 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:04:33,950 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:04:33,950 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:04:33,951 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:04:33,951 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:04:33,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 115 states, 114 states have (on average 1.3771929824561404) internal successors, (157), 114 states have internal predecessors, (157), 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) [2023-11-26 12:04:33,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2023-11-26 12:04:33,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:33,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:33,988 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,988 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,989 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:04:33,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 115 states, 114 states have (on average 1.3771929824561404) internal successors, (157), 114 states have internal predecessors, (157), 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) [2023-11-26 12:04:33,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2023-11-26 12:04:33,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:34,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:34,001 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,001 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,006 INFO L748 eck$LassoCheckResult]: Stem: 30#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 24#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 96#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 81#valid_product_returnLabel#1true main_#t~ret8#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 97#L208true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 70#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 35#L65-2true [2023-11-26 12:04:34,006 INFO L750 eck$LassoCheckResult]: Loop: 35#L65-2true assume !false; 32#L66true assume test_~splverifierCounter~0#1 < 4; 106#L67true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 56#L75true assume !(0 != test_~tmp~0#1); 104#L75-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 33#L85true assume !(0 != test_~tmp___0~0#1); 6#L85-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 79#L95true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 50#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 86#L103-2true assume { :begin_inline_timeShift } true; 93#L237true assume !(0 != ~pumpRunning~0); 39#L237-2true assume !(0 != ~systemActive~0); 29#L244-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 109#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret43#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret43#1;havoc __utac_acc__Specification3_spec__1_#t~ret43#1; 99#L767true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 114#L773-1true havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 60#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 35#L65-2true [2023-11-26 12:04:34,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-26 12:04:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462270852] [2023-11-26 12:04:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:34,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1295133267, now seen corresponding path program 1 times [2023-11-26 12:04:34,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315954302] [2023-11-26 12:04:34,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:34,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315954302] [2023-11-26 12:04:34,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315954302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:34,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492390560] [2023-11-26 12:04:34,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,310 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:04:34,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,350 INFO L87 Difference]: Start difference. First operand has 115 states, 114 states have (on average 1.3771929824561404) internal successors, (157), 114 states have internal predecessors, (157), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-26 12:04:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:34,388 INFO L93 Difference]: Finished difference Result 109 states and 141 transitions. [2023-11-26 12:04:34,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 141 transitions. [2023-11-26 12:04:34,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2023-11-26 12:04:34,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 99 states and 130 transitions. [2023-11-26 12:04:34,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2023-11-26 12:04:34,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2023-11-26 12:04:34,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 130 transitions. [2023-11-26 12:04:34,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:34,406 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 130 transitions. [2023-11-26 12:04:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 130 transitions. [2023-11-26 12:04:34,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-26 12:04:34,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 98 states have internal predecessors, (130), 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) [2023-11-26 12:04:34,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 130 transitions. [2023-11-26 12:04:34,443 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 130 transitions. [2023-11-26 12:04:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:34,449 INFO L428 stractBuchiCegarLoop]: Abstraction has 99 states and 130 transitions. [2023-11-26 12:04:34,450 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:04:34,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 130 transitions. [2023-11-26 12:04:34,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2023-11-26 12:04:34,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:34,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:34,454 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,454 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] [2023-11-26 12:04:34,455 INFO L748 eck$LassoCheckResult]: Stem: 276#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 277#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 268#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 269#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 323#valid_product_returnLabel#1 main_#t~ret8#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 324#L208 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 318#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 285#L65-2 [2023-11-26 12:04:34,455 INFO L750 eck$LassoCheckResult]: Loop: 285#L65-2 assume !false; 279#L66 assume test_~splverifierCounter~0#1 < 4; 280#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 307#L75 assume !(0 != test_~tmp~0#1); 308#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 282#L85 assume !(0 != test_~tmp___0~0#1); 237#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 238#L95 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 322#L103 assume 0 != test_~tmp___1~0#1; 304#L103-2 assume { :begin_inline_timeShift } true; 327#L237 assume !(0 != ~pumpRunning~0); 289#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 290#L269 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 314#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 244#L269-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 274#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 275#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret43#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret43#1;havoc __utac_acc__Specification3_spec__1_#t~ret43#1; 328#L767 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 267#L773-1 havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 313#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 285#L65-2 [2023-11-26 12:04:34,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-26 12:04:34,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569758184] [2023-11-26 12:04:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:34,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1425537159, now seen corresponding path program 1 times [2023-11-26 12:04:34,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111847518] [2023-11-26 12:04:34,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:34,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111847518] [2023-11-26 12:04:34,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111847518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:34,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356817563] [2023-11-26 12:04:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,529 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:04:34,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:34,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:34,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,531 INFO L87 Difference]: Start difference. First operand 99 states and 130 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-26 12:04:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:34,601 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2023-11-26 12:04:34,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 202 transitions. [2023-11-26 12:04:34,606 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2023-11-26 12:04:34,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 158 states and 202 transitions. [2023-11-26 12:04:34,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 158 [2023-11-26 12:04:34,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2023-11-26 12:04:34,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 202 transitions. [2023-11-26 12:04:34,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:34,615 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 202 transitions. [2023-11-26 12:04:34,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 202 transitions. [2023-11-26 12:04:34,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-26 12:04:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.2784810126582278) internal successors, (202), 157 states have internal predecessors, (202), 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) [2023-11-26 12:04:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2023-11-26 12:04:34,632 INFO L240 hiAutomatonCegarLoop]: Abstraction has 158 states and 202 transitions. [2023-11-26 12:04:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:34,634 INFO L428 stractBuchiCegarLoop]: Abstraction has 158 states and 202 transitions. [2023-11-26 12:04:34,634 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:04:34,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 202 transitions. [2023-11-26 12:04:34,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2023-11-26 12:04:34,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:34,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:34,639 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,640 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] [2023-11-26 12:04:34,640 INFO L748 eck$LassoCheckResult]: Stem: 540#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 541#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 532#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 533#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 593#valid_product_returnLabel#1 main_#t~ret8#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 594#L208 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 584#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 549#L65-2 [2023-11-26 12:04:34,641 INFO L750 eck$LassoCheckResult]: Loop: 549#L65-2 assume !false; 543#L66 assume test_~splverifierCounter~0#1 < 4; 544#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 574#L75 assume !(0 != test_~tmp~0#1); 575#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 546#L85 assume !(0 != test_~tmp___0~0#1); 500#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 501#L95 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 592#L103 assume 0 != test_~tmp___1~0#1; 570#L103-2 assume { :begin_inline_timeShift } true; 596#L237 assume !(0 != ~pumpRunning~0); 553#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 554#L269 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 534#L884 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 520#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 521#L371 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 557#L371-2 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 558#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1; 576#L273 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 511#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 512#L269-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 538#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 539#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret43#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret43#1;havoc __utac_acc__Specification3_spec__1_#t~ret43#1; 599#L767 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 531#L773-1 havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 580#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 549#L65-2 [2023-11-26 12:04:34,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-26 12:04:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151088912] [2023-11-26 12:04:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:34,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1606759423, now seen corresponding path program 1 times [2023-11-26 12:04:34,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666079905] [2023-11-26 12:04:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:34,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1733200699, now seen corresponding path program 1 times [2023-11-26 12:04:34,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572948460] [2023-11-26 12:04:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:35,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:35,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572948460] [2023-11-26 12:04:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572948460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:35,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:35,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:04:35,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157935251] [2023-11-26 12:04:35,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:35,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:35,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:04:35,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:35,310 INFO L87 Difference]: Start difference. First operand 158 states and 202 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-11-26 12:04:35,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:35,448 INFO L93 Difference]: Finished difference Result 404 states and 511 transitions. [2023-11-26 12:04:35,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 511 transitions. [2023-11-26 12:04:35,455 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 292 [2023-11-26 12:04:35,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 404 states and 511 transitions. [2023-11-26 12:04:35,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 404 [2023-11-26 12:04:35,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 404 [2023-11-26 12:04:35,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 404 states and 511 transitions. [2023-11-26 12:04:35,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:35,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 404 states and 511 transitions. [2023-11-26 12:04:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states and 511 transitions. [2023-11-26 12:04:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 309. [2023-11-26 12:04:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.2588996763754046) internal successors, (389), 308 states have internal predecessors, (389), 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) [2023-11-26 12:04:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 389 transitions. [2023-11-26 12:04:35,513 INFO L240 hiAutomatonCegarLoop]: Abstraction has 309 states and 389 transitions. [2023-11-26 12:04:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:04:35,516 INFO L428 stractBuchiCegarLoop]: Abstraction has 309 states and 389 transitions. [2023-11-26 12:04:35,516 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 12:04:35,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 389 transitions. [2023-11-26 12:04:35,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 224 [2023-11-26 12:04:35,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:35,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:35,522 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:35,523 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] [2023-11-26 12:04:35,523 INFO L748 eck$LassoCheckResult]: Stem: 1117#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1118#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~retValue_acc~0#1, main_~tmp~1#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1109#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1110#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1176#valid_product_returnLabel#1 main_#t~ret8#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 1177#L208 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1164#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1126#L65-2 [2023-11-26 12:04:35,523 INFO L750 eck$LassoCheckResult]: Loop: 1126#L65-2 assume !false; 1120#L66 assume test_~splverifierCounter~0#1 < 4; 1121#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1153#L75 assume !(0 != test_~tmp~0#1); 1154#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1123#L85 assume !(0 != test_~tmp___0~0#1); 1076#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1077#L95 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1173#L103 assume 0 != test_~tmp___1~0#1; 1147#L103-2 assume { :begin_inline_timeShift } true; 1183#L237 assume !(0 != ~pumpRunning~0); 1130#L237-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1131#L269 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~3#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1; 1328#L884 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; 1325#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1323#L371 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1320#L371-2 isHighWaterLevel_~retValue_acc~3#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~3#1; 1318#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~3#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1; 1316#L273 assume !(0 != processEnvironment_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1314#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1312#L269-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1302#L244-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; 1301#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret43#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret43#1;havoc __utac_acc__Specification3_spec__1_#t~ret43#1; 1300#L767 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; 1299#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret44#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret44#1;havoc __utac_acc__Specification3_spec__1_#t~ret44#1; 1297#L773 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1295#L773-1 havoc __utac_acc__Specification3_spec__1_#t~ret43#1, __utac_acc__Specification3_spec__1_#t~ret44#1, __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1158#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1126#L65-2 [2023-11-26 12:04:35,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-26 12:04:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:35,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582559244] [2023-11-26 12:04:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:35,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:35,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:35,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:35,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2093613078, now seen corresponding path program 1 times [2023-11-26 12:04:35,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:35,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968030485] [2023-11-26 12:04:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:35,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:35,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:35,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:35,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash 842631130, now seen corresponding path program 1 times [2023-11-26 12:04:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:35,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905257577] [2023-11-26 12:04:35,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:35,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:35,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:35,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:36,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:36,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:04:36 BoogieIcfgContainer [2023-11-26 12:04:36,969 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:04:36,970 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:36,970 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:36,971 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:36,971 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:33" (3/4) ... [2023-11-26 12:04:36,974 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 12:04:37,047 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:04:37,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:37,048 INFO L158 Benchmark]: Toolchain (without parser) took 4564.29ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 119.1MB in the beginning and 101.7MB in the end (delta: 17.4MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,048 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:37,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.94ms. Allocated memory is still 148.9MB. Free memory was 118.8MB in the beginning and 99.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.71ms. Allocated memory is still 148.9MB. Free memory was 99.7MB in the beginning and 97.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,050 INFO L158 Benchmark]: Boogie Preprocessor took 76.50ms. Allocated memory is still 148.9MB. Free memory was 97.1MB in the beginning and 94.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,050 INFO L158 Benchmark]: RCFGBuilder took 751.41ms. Allocated memory is still 148.9MB. Free memory was 94.1MB in the beginning and 75.6MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,050 INFO L158 Benchmark]: BuchiAutomizer took 3091.13ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 75.3MB in the beginning and 104.8MB in the end (delta: -29.5MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,051 INFO L158 Benchmark]: Witness Printer took 77.46ms. Allocated memory is still 180.4MB. Free memory was 104.8MB in the beginning and 101.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:37,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.94ms. Allocated memory is still 148.9MB. Free memory was 118.8MB in the beginning and 99.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.71ms. Allocated memory is still 148.9MB. Free memory was 99.7MB in the beginning and 97.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.50ms. Allocated memory is still 148.9MB. Free memory was 97.1MB in the beginning and 94.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 751.41ms. Allocated memory is still 148.9MB. Free memory was 94.1MB in the beginning and 75.6MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3091.13ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 75.3MB in the beginning and 104.8MB in the end (delta: -29.5MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 77.46ms. Allocated memory is still 180.4MB. Free memory was 104.8MB in the beginning and 101.7MB 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [121] - GenericResultAtLocation [Line: 221]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [221] - GenericResultAtLocation [Line: 389]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [389] - GenericResultAtLocation [Line: 755]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [755] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [791] - GenericResultAtLocation [Line: 800]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [800] - GenericResultAtLocation [Line: 894]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [894] * 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 5 locations. The remainder module has 309 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 95 StatesRemovedByMinimization, 1 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, 519 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 519 mSDsluCounter, 994 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 525 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 469 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L122] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L559] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int waterLevel = 1; [L802] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L199] int retValue_acc ; [L200] int tmp ; [L204] FCALL select_helpers() [L205] FCALL select_features() [L206] CALL, EXPR valid_product() [L921] int retValue_acc ; [L924] retValue_acc = 1 [L925] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L206] RET, EXPR valid_product() [L206] tmp = valid_product() [L208] COND TRUE \read(tmp) [L210] FCALL setup() [L211] CALL runTest() [L190] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___1) [L110] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L363] int retValue_acc ; [L364] int tmp ; [L365] int tmp___0 ; [L369] CALL, EXPR isHighWaterSensorDry() [L881] int retValue_acc ; [L884] COND TRUE waterLevel < 2 [L885] retValue_acc = 1 [L886] return (retValue_acc); [L369] RET, EXPR isHighWaterSensorDry() [L369] tmp = isHighWaterSensorDry() [L371] COND TRUE \read(tmp) [L372] tmp___0 = 0 [L376] retValue_acc = tmp___0 [L377] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND FALSE !(\read(tmp)) [L279] FCALL processEnvironment__wrappee__base() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification3_spec__1() [L759] int tmp ; [L760] int tmp___0 ; [L761] int tmp___1 ; [L765] CALL, EXPR isMethaneLevelCritical() [L840] int retValue_acc ; [L843] retValue_acc = methaneLevelCritical [L844] return (retValue_acc); [L765] RET, EXPR isMethaneLevelCritical() [L765] tmp = isMethaneLevelCritical() [L767] COND FALSE !(\read(tmp)) [L771] CALL, EXPR getWaterLevel() [L872] int retValue_acc ; [L875] retValue_acc = waterLevel [L876] return (retValue_acc); [L771] RET, EXPR getWaterLevel() [L771] tmp___0 = getWaterLevel() [L773] COND FALSE !(tmp___0 == 2) [L252] RET __utac_acc__Specification3_spec__1() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L122] int cleanupTimeShifts = 4; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L559] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L801] int waterLevel = 1; [L802] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L199] int retValue_acc ; [L200] int tmp ; [L204] FCALL select_helpers() [L205] FCALL select_features() [L206] CALL, EXPR valid_product() [L921] int retValue_acc ; [L924] retValue_acc = 1 [L925] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L206] RET, EXPR valid_product() [L206] tmp = valid_product() [L208] COND TRUE \read(tmp) [L210] FCALL setup() [L211] CALL runTest() [L190] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L101] tmp___1 = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp___1) [L110] CALL timeShift() [L237] COND FALSE !(\read(pumpRunning)) [L244] COND TRUE \read(systemActive) [L246] CALL processEnvironment() [L266] int tmp ; [L269] COND TRUE ! pumpRunning [L271] CALL, EXPR isHighWaterLevel() [L363] int retValue_acc ; [L364] int tmp ; [L365] int tmp___0 ; [L369] CALL, EXPR isHighWaterSensorDry() [L881] int retValue_acc ; [L884] COND TRUE waterLevel < 2 [L885] retValue_acc = 1 [L886] return (retValue_acc); [L369] RET, EXPR isHighWaterSensorDry() [L369] tmp = isHighWaterSensorDry() [L371] COND TRUE \read(tmp) [L372] tmp___0 = 0 [L376] retValue_acc = tmp___0 [L377] return (retValue_acc); [L271] RET, EXPR isHighWaterLevel() [L271] tmp = isHighWaterLevel() [L273] COND FALSE !(\read(tmp)) [L279] FCALL processEnvironment__wrappee__base() [L246] RET processEnvironment() [L252] CALL __utac_acc__Specification3_spec__1() [L759] int tmp ; [L760] int tmp___0 ; [L761] int tmp___1 ; [L765] CALL, EXPR isMethaneLevelCritical() [L840] int retValue_acc ; [L843] retValue_acc = methaneLevelCritical [L844] return (retValue_acc); [L765] RET, EXPR isMethaneLevelCritical() [L765] tmp = isMethaneLevelCritical() [L767] COND FALSE !(\read(tmp)) [L771] CALL, EXPR getWaterLevel() [L872] int retValue_acc ; [L875] retValue_acc = waterLevel [L876] return (retValue_acc); [L771] RET, EXPR getWaterLevel() [L771] tmp___0 = getWaterLevel() [L773] COND FALSE !(tmp___0 == 2) [L252] RET __utac_acc__Specification3_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 12:04:37,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bcf4787-f9e9-45a6-9382-02caf89ae61b/bin/uautomizer-verify-VRDe98Ueme/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)