./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/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_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/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_018a7595-a435-49b2-a08c-e1445388eb9c/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 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:20:03,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:20:03,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:20:03,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:20:03,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:20:03,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:20:03,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:20:03,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:20:03,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:20:03,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:20:03,243 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:20:03,244 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:20:03,244 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:20:03,246 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:20:03,247 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:20:03,247 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:20:03,248 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:20:03,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:20:03,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:20:03,249 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:20:03,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:20:03,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:20:03,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:20:03,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:20:03,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:20:03,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:20:03,254 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:20:03,254 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:20:03,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:20:03,255 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:20:03,256 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:20:03,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:20:03,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:20:03,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:20:03,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:20:03,258 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:20:03,258 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_018a7595-a435-49b2-a08c-e1445388eb9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b [2023-11-06 22:20:03,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:20:03,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:20:03,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:20:03,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:20:03,529 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:20:03,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2023-11-06 22:20:06,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:20:07,121 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:20:07,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2023-11-06 22:20:07,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/data/d768cd075/7ccfb518540543e2bf83b4ccd8519757/FLAG7a60d1789 [2023-11-06 22:20:07,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/data/d768cd075/7ccfb518540543e2bf83b4ccd8519757 [2023-11-06 22:20:07,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:20:07,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:20:07,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:07,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:20:07,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:20:07,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32518bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07, skipping insertion in model container [2023-11-06 22:20:07,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,412 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:20:07,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:07,698 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:20:07,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-06 22:20:07,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] [2023-11-06 22:20:07,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [372] [2023-11-06 22:20:07,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [408] [2023-11-06 22:20:07,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [774] [2023-11-06 22:20:07,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [783] [2023-11-06 22:20:07,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [821] [2023-11-06 22:20:07,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [924] [2023-11-06 22:20:07,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:20:07,793 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:20:07,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07 WrapperNode [2023-11-06 22:20:07,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:20:07,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:07,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:20:07,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:20:07,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,861 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 58, calls inlined = 104, statements flattened = 718 [2023-11-06 22:20:07,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:20:07,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:20:07,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:20:07,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:20:07,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:20:07,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:20:07,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:20:07,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:20:07,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (1/1) ... [2023-11-06 22:20:07,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:20:07,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:07,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:20:08,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:20:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:20:08,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:20:08,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:20:08,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:20:08,120 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:20:08,122 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:20:08,629 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:20:08,642 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:20:08,643 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:20:08,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:08 BoogieIcfgContainer [2023-11-06 22:20:08,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:20:08,647 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:20:08,647 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:20:08,651 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:20:08,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:20:08,652 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:20:07" (1/3) ... [2023-11-06 22:20:08,656 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bec7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:20:08, skipping insertion in model container [2023-11-06 22:20:08,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:20:08,656 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:20:07" (2/3) ... [2023-11-06 22:20:08,658 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bec7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:20:08, skipping insertion in model container [2023-11-06 22:20:08,659 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:20:08,659 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:08" (3/3) ... [2023-11-06 22:20:08,663 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2023-11-06 22:20:08,759 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:20:08,760 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:20:08,760 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:20:08,760 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:20:08,761 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:20:08,762 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:20:08,762 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:20:08,763 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:20:08,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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 22:20:08,805 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2023-11-06 22:20:08,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:20:08,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:20:08,814 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,814 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,814 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:20:08,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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 22:20:08,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2023-11-06 22:20:08,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:20:08,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:20:08,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,836 INFO L748 eck$LassoCheckResult]: Stem: 118#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 124#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 17#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 176#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 65#valid_product_returnLabel#1true main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 58#L1007true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 49#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; 126#L66-2true [2023-11-06 22:20:08,837 INFO L750 eck$LassoCheckResult]: Loop: 126#L66-2true assume !false; 182#L67true assume test_~splverifierCounter~0#1 < 4; 191#L68true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 45#L76true assume !(0 != test_~tmp~0#1); 186#L76-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 101#L86true assume !(0 != test_~tmp___0~0#1); 96#L86-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 178#L96true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 37#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 199#L104-2true assume { :begin_inline_timeShift } true; 75#L142true assume !(0 != ~pumpRunning~0); 72#L142-2true assume !(0 != ~systemActive~0); 93#L149-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 51#isMethaneLevelCritical_returnLabel#3true __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 97#L384true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 170#L390-1true havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 143#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 126#L66-2true [2023-11-06 22:20:08,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2023-11-06 22:20:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:08,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087781667] [2023-11-06 22:20:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:08,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:08,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:09,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1231972237, now seen corresponding path program 1 times [2023-11-06 22:20:09,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138589367] [2023-11-06 22:20:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:09,185 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 22:20:09,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:09,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138589367] [2023-11-06 22:20:09,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138589367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:09,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:09,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:09,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874127994] [2023-11-06 22:20:09,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:09,193 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:20:09,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:09,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:09,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:09,231 INFO L87 Difference]: Start difference. First operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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) [2023-11-06 22:20:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:09,315 INFO L93 Difference]: Finished difference Result 379 states and 501 transitions. [2023-11-06 22:20:09,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 379 states and 501 transitions. [2023-11-06 22:20:09,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2023-11-06 22:20:09,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 379 states to 359 states and 480 transitions. [2023-11-06 22:20:09,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2023-11-06 22:20:09,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2023-11-06 22:20:09,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 480 transitions. [2023-11-06 22:20:09,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:09,355 INFO L218 hiAutomatonCegarLoop]: Abstraction has 359 states and 480 transitions. [2023-11-06 22:20:09,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 480 transitions. [2023-11-06 22:20:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 356. [2023-11-06 22:20:09,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 356 states have (on average 1.3370786516853932) internal successors, (476), 355 states have internal predecessors, (476), 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 22:20:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 476 transitions. [2023-11-06 22:20:09,416 INFO L240 hiAutomatonCegarLoop]: Abstraction has 356 states and 476 transitions. [2023-11-06 22:20:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:09,422 INFO L428 stractBuchiCegarLoop]: Abstraction has 356 states and 476 transitions. [2023-11-06 22:20:09,422 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:20:09,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 356 states and 476 transitions. [2023-11-06 22:20:09,430 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 245 [2023-11-06 22:20:09,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:20:09,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:20:09,432 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:09,432 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] [2023-11-06 22:20:09,433 INFO L748 eck$LassoCheckResult]: Stem: 651#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 652#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 645#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 646#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 754#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 744#L1007 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 727#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; 675#L66-2 [2023-11-06 22:20:09,433 INFO L750 eck$LassoCheckResult]: Loop: 675#L66-2 assume !false; 676#L67 assume test_~splverifierCounter~0#1 < 4; 787#L68 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 724#L76 assume !(0 != test_~tmp~0#1); 721#L76-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 592#L86 assume !(0 != test_~tmp___0~0#1); 594#L86-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 785#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 691#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 638#L104-2 assume { :begin_inline_timeShift } true; 771#L142 assume !(0 != ~pumpRunning~0); 723#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 766#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 779#L174-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 588#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 589#L174-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 607#L200-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 640#L149-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 730#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 731#L384 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 774#L390-1 havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 710#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 675#L66-2 [2023-11-06 22:20:09,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2023-11-06 22:20:09,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038744159] [2023-11-06 22:20:09,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:09,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1933568721, now seen corresponding path program 1 times [2023-11-06 22:20:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938278119] [2023-11-06 22:20:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:09,503 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 22:20:09,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:09,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938278119] [2023-11-06 22:20:09,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938278119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:09,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:09,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:20:09,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994588679] [2023-11-06 22:20:09,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:09,505 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:20:09,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:09,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:09,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:09,507 INFO L87 Difference]: Start difference. First operand 356 states and 476 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22:20:09,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:09,604 INFO L93 Difference]: Finished difference Result 492 states and 635 transitions. [2023-11-06 22:20:09,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 635 transitions. [2023-11-06 22:20:09,612 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2023-11-06 22:20:09,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 492 states and 635 transitions. [2023-11-06 22:20:09,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 492 [2023-11-06 22:20:09,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 492 [2023-11-06 22:20:09,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 492 states and 635 transitions. [2023-11-06 22:20:09,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:09,630 INFO L218 hiAutomatonCegarLoop]: Abstraction has 492 states and 635 transitions. [2023-11-06 22:20:09,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states and 635 transitions. [2023-11-06 22:20:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2023-11-06 22:20:09,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.2906504065040652) internal successors, (635), 491 states have internal predecessors, (635), 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 22:20:09,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 635 transitions. [2023-11-06 22:20:09,687 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 635 transitions. [2023-11-06 22:20:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:09,691 INFO L428 stractBuchiCegarLoop]: Abstraction has 492 states and 635 transitions. [2023-11-06 22:20:09,691 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:20:09,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 635 transitions. [2023-11-06 22:20:09,697 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2023-11-06 22:20:09,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:20:09,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:20:09,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:09,705 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] [2023-11-06 22:20:09,707 INFO L748 eck$LassoCheckResult]: Stem: 1504#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1497#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1498#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1615#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1605#L1007 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1588#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; 1526#L66-2 [2023-11-06 22:20:09,707 INFO L750 eck$LassoCheckResult]: Loop: 1526#L66-2 assume !false; 1527#L67 assume test_~splverifierCounter~0#1 < 4; 1651#L68 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1581#L76 assume !(0 != test_~tmp~0#1); 1576#L76-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1442#L86 assume !(0 != test_~tmp___0~0#1); 1444#L86-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1647#L96 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; 1490#L104 assume !(0 != test_~tmp___1~0#1); 1491#L104-2 assume { :begin_inline_timeShift } true; 1632#L142 assume !(0 != ~pumpRunning~0); 1625#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1626#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1641#L174-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1574#L905-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1519#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1520#L320-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1469#L320-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1470#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1515#L178-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1512#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1513#L174-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1587#L200-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1807#L149-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1806#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 1805#L384 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 1631#L390-1 havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1567#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1526#L66-2 [2023-11-06 22:20:09,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2023-11-06 22:20:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974204352] [2023-11-06 22:20:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:09,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1791994203, now seen corresponding path program 1 times [2023-11-06 22:20:09,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625949171] [2023-11-06 22:20:09,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:09,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:09,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash 541012255, now seen corresponding path program 1 times [2023-11-06 22:20:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:09,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692140480] [2023-11-06 22:20:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:10,063 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 22:20:10,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:10,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692140480] [2023-11-06 22:20:10,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692140480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:10,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:10,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:20:10,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407558971] [2023-11-06 22:20:10,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:10,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:10,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:20:10,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:20:10,406 INFO L87 Difference]: Start difference. First operand 492 states and 635 transitions. cyclomatic complexity: 146 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 22:20:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:10,600 INFO L93 Difference]: Finished difference Result 1215 states and 1562 transitions. [2023-11-06 22:20:10,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1215 states and 1562 transitions. [2023-11-06 22:20:10,611 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 904 [2023-11-06 22:20:10,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1215 states to 1215 states and 1562 transitions. [2023-11-06 22:20:10,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1215 [2023-11-06 22:20:10,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1215 [2023-11-06 22:20:10,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1215 states and 1562 transitions. [2023-11-06 22:20:10,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:10,628 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1215 states and 1562 transitions. [2023-11-06 22:20:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states and 1562 transitions. [2023-11-06 22:20:10,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 977. [2023-11-06 22:20:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 977 states have (on average 1.2763561924257933) internal successors, (1247), 976 states have internal predecessors, (1247), 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 22:20:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1247 transitions. [2023-11-06 22:20:10,687 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1247 transitions. [2023-11-06 22:20:10,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:20:10,688 INFO L428 stractBuchiCegarLoop]: Abstraction has 977 states and 1247 transitions. [2023-11-06 22:20:10,689 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:20:10,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 977 states and 1247 transitions. [2023-11-06 22:20:10,696 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2023-11-06 22:20:10,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:20:10,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:20:10,698 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:10,698 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, 1] [2023-11-06 22:20:10,698 INFO L748 eck$LassoCheckResult]: Stem: 3227#$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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 3228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3221#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3222#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 3341#valid_product_returnLabel#1 main_#t~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 3329#L1007 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3311#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; 3248#L66-2 [2023-11-06 22:20:10,699 INFO L750 eck$LassoCheckResult]: Loop: 3248#L66-2 assume !false; 3249#L67 assume test_~splverifierCounter~0#1 < 4; 3384#L68 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 3307#L76 assume !(0 != test_~tmp~0#1); 3302#L76-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3163#L86 assume !(0 != test_~tmp___0~0#1); 3165#L86-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3377#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3269#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3213#L104-2 assume { :begin_inline_timeShift } true; 3360#L142 assume !(0 != ~pumpRunning~0); 3352#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3353#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3370#L174-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 3299#L905-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3300#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 3808#L320-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3806#L320-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3805#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 3237#L178-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3235#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3180#L174-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3181#L200-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 3215#L149-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 3398#isMethaneLevelCritical_returnLabel#3 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 3790#L384 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3789#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret23#1;havoc __utac_acc__Specification3_spec__1_#t~ret23#1; 3786#L390 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 3359#L390-1 havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3292#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3248#L66-2 [2023-11-06 22:20:10,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:10,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2023-11-06 22:20:10,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:10,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827384185] [2023-11-06 22:20:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:10,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:10,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:10,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:10,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:10,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1466922750, now seen corresponding path program 1 times [2023-11-06 22:20:10,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:10,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593272363] [2023-11-06 22:20:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:10,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:10,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:10,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:10,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1864113602, now seen corresponding path program 1 times [2023-11-06 22:20:10,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:10,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514004359] [2023-11-06 22:20:10,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:10,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:10,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:10,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:11,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:12,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:20:12 BoogieIcfgContainer [2023-11-06 22:20:12,028 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:20:12,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:20:12,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:20:12,029 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:20:12,029 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:20:08" (3/4) ... [2023-11-06 22:20:12,031 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:20:12,081 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:20:12,081 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:20:12,082 INFO L158 Benchmark]: Toolchain (without parser) took 4733.89ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 119.2MB in the beginning and 149.6MB in the end (delta: -30.4MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,082 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:12,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.67ms. Allocated memory is still 159.4MB. Free memory was 119.2MB in the beginning and 100.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.78ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 96.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,084 INFO L158 Benchmark]: Boogie Preprocessor took 61.62ms. Allocated memory is still 159.4MB. Free memory was 96.4MB in the beginning and 93.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,084 INFO L158 Benchmark]: RCFGBuilder took 720.97ms. Allocated memory is still 159.4MB. Free memory was 93.7MB in the beginning and 66.4MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,085 INFO L158 Benchmark]: BuchiAutomizer took 3381.08ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 66.4MB in the beginning and 152.7MB in the end (delta: -86.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:20:12,085 INFO L158 Benchmark]: Witness Printer took 52.93ms. Allocated memory is still 226.5MB. Free memory was 152.7MB in the beginning and 149.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:20:12,087 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.67ms. Allocated memory is still 159.4MB. Free memory was 119.2MB in the beginning and 100.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.78ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 96.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.62ms. Allocated memory is still 159.4MB. Free memory was 96.4MB in the beginning and 93.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 720.97ms. Allocated memory is still 159.4MB. Free memory was 93.7MB in the beginning and 66.4MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3381.08ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 66.4MB in the beginning and 152.7MB in the end (delta: -86.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.93ms. Allocated memory is still 226.5MB. Free memory was 152.7MB in the beginning and 149.6MB 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: 124]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] - GenericResultAtLocation [Line: 372]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [372] - GenericResultAtLocation [Line: 408]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [408] - GenericResultAtLocation [Line: 774]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [774] - GenericResultAtLocation [Line: 783]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [783] - GenericResultAtLocation [Line: 821]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [821] - GenericResultAtLocation [Line: 924]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [924] * 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 977 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.1s. 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 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 241 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, 960 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 960 mSDsluCounter, 2065 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1212 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 853 mSDtfsCounter, 138 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: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L998] int retValue_acc ; [L999] int tmp ; [L1003] FCALL select_helpers() [L1004] FCALL select_features() [L1005] CALL, EXPR valid_product() [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1005] RET, EXPR valid_product() [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) [L1009] FCALL setup() [L1010] CALL runTest() [L992] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L368] systemActive = 1 [L98] RET startSystem() [L113] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L215] CALL processEnvironment__wrappee__highWaterSensor() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L312] int retValue_acc ; [L313] int tmp ; [L314] int tmp___0 ; [L318] CALL, EXPR isHighWaterSensorDry() [L902] int retValue_acc ; [L905] COND TRUE waterLevel < 2 [L906] retValue_acc = 1 [L907] return (retValue_acc); [L318] RET, EXPR isHighWaterSensorDry() [L318] tmp = isHighWaterSensorDry() [L320] COND TRUE \read(tmp) [L321] tmp___0 = 0 [L325] retValue_acc = tmp___0 [L326] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L184] FCALL processEnvironment__wrappee__base() [L215] RET processEnvironment__wrappee__highWaterSensor() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification3_spec__1() [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L382] CALL, EXPR isMethaneLevelCritical() [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); [L382] RET, EXPR isMethaneLevelCritical() [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L388] CALL, EXPR getWaterLevel() [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); [L388] RET, EXPR getWaterLevel() [L388] tmp___0 = getWaterLevel() [L390] COND FALSE !(tmp___0 == 2) [L157] RET __utac_acc__Specification3_spec__1() [L113] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L998] int retValue_acc ; [L999] int tmp ; [L1003] FCALL select_helpers() [L1004] FCALL select_features() [L1005] CALL, EXPR valid_product() [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1005] RET, EXPR valid_product() [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) [L1009] FCALL setup() [L1010] CALL runTest() [L992] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L368] systemActive = 1 [L98] RET startSystem() [L113] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L215] CALL processEnvironment__wrappee__highWaterSensor() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L312] int retValue_acc ; [L313] int tmp ; [L314] int tmp___0 ; [L318] CALL, EXPR isHighWaterSensorDry() [L902] int retValue_acc ; [L905] COND TRUE waterLevel < 2 [L906] retValue_acc = 1 [L907] return (retValue_acc); [L318] RET, EXPR isHighWaterSensorDry() [L318] tmp = isHighWaterSensorDry() [L320] COND TRUE \read(tmp) [L321] tmp___0 = 0 [L325] retValue_acc = tmp___0 [L326] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L184] FCALL processEnvironment__wrappee__base() [L215] RET processEnvironment__wrappee__highWaterSensor() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification3_spec__1() [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L382] CALL, EXPR isMethaneLevelCritical() [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); [L382] RET, EXPR isMethaneLevelCritical() [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L388] CALL, EXPR getWaterLevel() [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); [L388] RET, EXPR getWaterLevel() [L388] tmp___0 = getWaterLevel() [L390] COND FALSE !(tmp___0 == 2) [L157] RET __utac_acc__Specification3_spec__1() [L113] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:20:12,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_018a7595-a435-49b2-a08c-e1445388eb9c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)