./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB --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 ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:24:41,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:24:41,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:24:41,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:24:41,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:24:41,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:24:41,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:24:41,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:24:41,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:24:41,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:24:41,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:24:41,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:24:41,508 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:24:41,509 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:24:41,509 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:24:41,509 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:24:41,509 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:24:41,509 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:24:41,509 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:24:41,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:24:41,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:24:41,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:24:41,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:24:41,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:24:41,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:24:41,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:24:41,513 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:24:41,513 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 [2024-11-27 20:24:41,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:24:41,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:24:41,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:24:41,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:24:41,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:24:41,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2024-11-27 20:24:45,201 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/data/13a6304a8/476d24c2f59a4b168c951a24fc29820d/FLAG5c48bbff7 [2024-11-27 20:24:45,564 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:24:45,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2024-11-27 20:24:45,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/data/13a6304a8/476d24c2f59a4b168c951a24fc29820d/FLAG5c48bbff7 [2024-11-27 20:24:45,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/data/13a6304a8/476d24c2f59a4b168c951a24fc29820d [2024-11-27 20:24:45,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:24:45,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:24:45,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:45,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:24:45,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:24:45,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:45" (1/1) ... [2024-11-27 20:24:45,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f7e01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:45, skipping insertion in model container [2024-11-27 20:24:45,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:24:45" (1/1) ... [2024-11-27 20:24:45,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:24:46,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:46,101 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:24:46,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-27 20:24:46,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-27 20:24:46,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2024-11-27 20:24:46,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [207] [2024-11-27 20:24:46,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [573] [2024-11-27 20:24:46,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [672] [2024-11-27 20:24:46,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] [2024-11-27 20:24:46,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] [2024-11-27 20:24:46,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:24:46,246 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:24:46,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46 WrapperNode [2024-11-27 20:24:46,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:24:46,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:46,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:24:46,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:24:46,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,369 INFO L138 Inliner]: procedures = 57, calls = 106, calls flagged for inlining = 59, calls inlined = 145, statements flattened = 989 [2024-11-27 20:24:46,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:24:46,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:24:46,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:24:46,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:24:46,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,442 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]. [2024-11-27 20:24:46,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,469 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:24:46,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:24:46,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:24:46,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:24:46,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (1/1) ... [2024-11-27 20:24:46,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:24:46,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:46,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:24:46,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:24:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:24:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:24:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:24:46,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:24:46,712 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:24:46,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:24:47,670 INFO L? ?]: Removed 247 outVars from TransFormulas that were not future-live. [2024-11-27 20:24:47,671 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:24:47,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:24:47,692 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 20:24:47,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:47 BoogieIcfgContainer [2024-11-27 20:24:47,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:24:47,694 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:24:47,695 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:24:47,702 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:24:47,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:24:47,707 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:24:45" (1/3) ... [2024-11-27 20:24:47,708 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53e70d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:24:47, skipping insertion in model container [2024-11-27 20:24:47,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:24:47,708 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:24:46" (2/3) ... [2024-11-27 20:24:47,709 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53e70d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:24:47, skipping insertion in model container [2024-11-27 20:24:47,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:24:47,709 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:47" (3/3) ... [2024-11-27 20:24:47,712 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2024-11-27 20:24:47,803 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:24:47,804 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:24:47,805 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:24:47,805 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:24:47,805 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:24:47,806 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:24:47,806 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:24:47,806 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:24:47,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 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) [2024-11-27 20:24:47,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2024-11-27 20:24:47,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:24:47,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:24:47,861 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:47,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:47,862 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:24:47,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 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) [2024-11-27 20:24:47,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2024-11-27 20:24:47,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:24:47,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:24:47,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:47,875 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:47,882 INFO L747 eck$LassoCheckResult]: Stem: "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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:24:47,882 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:24:47,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-27 20:24:47,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:47,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092062635] [2024-11-27 20:24:47,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:47,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:48,020 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:48,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:48,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:48,080 INFO L85 PathProgramCache]: Analyzing trace with hash 987012104, now seen corresponding path program 1 times [2024-11-27 20:24:48,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:48,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8719141] [2024-11-27 20:24:48,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:48,097 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:48,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:48,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1030735300, now seen corresponding path program 1 times [2024-11-27 20:24:48,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:48,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851890697] [2024-11-27 20:24:48,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:48,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:24:48,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851890697] [2024-11-27 20:24:48,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851890697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:48,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630879935] [2024-11-27 20:24:48,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:48,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:48,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:48,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:48,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:24:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:48,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:48,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:48,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:48,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630879935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:48,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:48,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-27 20:24:48,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283457872] [2024-11-27 20:24:48,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:48,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:24:48,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:24:48,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:48,834 INFO L87 Difference]: Start difference. First operand has 281 states, 280 states have (on average 1.3714285714285714) internal successors, (384), 280 states have internal predecessors, (384), 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 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2024-11-27 20:24:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:49,139 INFO L93 Difference]: Finished difference Result 611 states and 818 transitions. [2024-11-27 20:24:49,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 611 states and 818 transitions. [2024-11-27 20:24:49,163 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 397 [2024-11-27 20:24:49,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 611 states to 581 states and 788 transitions. [2024-11-27 20:24:49,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 581 [2024-11-27 20:24:49,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 581 [2024-11-27 20:24:49,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 581 states and 788 transitions. [2024-11-27 20:24:49,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:24:49,197 INFO L218 hiAutomatonCegarLoop]: Abstraction has 581 states and 788 transitions. [2024-11-27 20:24:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states and 788 transitions. [2024-11-27 20:24:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 321. [2024-11-27 20:24:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 321 states have (on average 1.355140186915888) internal successors, (435), 320 states have internal predecessors, (435), 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) [2024-11-27 20:24:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 435 transitions. [2024-11-27 20:24:49,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 321 states and 435 transitions. [2024-11-27 20:24:49,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:49,278 INFO L425 stractBuchiCegarLoop]: Abstraction has 321 states and 435 transitions. [2024-11-27 20:24:49,278 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:24:49,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states and 435 transitions. [2024-11-27 20:24:49,281 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 220 [2024-11-27 20:24:49,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:24:49,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:24:49,282 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:49,282 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] [2024-11-27 20:24:49,282 INFO L747 eck$LassoCheckResult]: Stem: "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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:24:49,282 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "isMethaneAlarm_#t~ret37#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret37#1;havoc isMethaneAlarm_#t~ret37#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1;" "processEnvironment_#t~ret36#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1;" "assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:24:49,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:49,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-27 20:24:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:49,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80500193] [2024-11-27 20:24:49,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:49,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:49,307 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:49,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:49,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1185447567, now seen corresponding path program 1 times [2024-11-27 20:24:49,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:49,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296225479] [2024-11-27 20:24:49,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:49,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:49,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:24:49,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296225479] [2024-11-27 20:24:49,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296225479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:49,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855982601] [2024-11-27 20:24:49,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:49,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:49,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:49,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:49,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:24:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:49,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:49,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:49,496 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:49,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855982601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:49,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:49,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:24:49,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732102330] [2024-11-27 20:24:49,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:49,510 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:24:49,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:24:49,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:49,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:49,515 INFO L87 Difference]: Start difference. First operand 321 states and 435 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:24:49,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:49,688 INFO L93 Difference]: Finished difference Result 330 states and 424 transitions. [2024-11-27 20:24:49,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 424 transitions. [2024-11-27 20:24:49,693 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2024-11-27 20:24:49,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 330 states and 424 transitions. [2024-11-27 20:24:49,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2024-11-27 20:24:49,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 330 [2024-11-27 20:24:49,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 330 states and 424 transitions. [2024-11-27 20:24:49,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:24:49,700 INFO L218 hiAutomatonCegarLoop]: Abstraction has 330 states and 424 transitions. [2024-11-27 20:24:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states and 424 transitions. [2024-11-27 20:24:49,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-11-27 20:24:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 330 states have (on average 1.284848484848485) internal successors, (424), 329 states have internal predecessors, (424), 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) [2024-11-27 20:24:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 424 transitions. [2024-11-27 20:24:49,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 330 states and 424 transitions. [2024-11-27 20:24:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:49,730 INFO L425 stractBuchiCegarLoop]: Abstraction has 330 states and 424 transitions. [2024-11-27 20:24:49,731 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:24:49,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 330 states and 424 transitions. [2024-11-27 20:24:49,733 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2024-11-27 20:24:49,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:24:49,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:24:49,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:49,734 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] [2024-11-27 20:24:49,734 INFO L747 eck$LassoCheckResult]: Stem: "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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:24:49,735 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1;" "isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1;" "assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~0#1 := 1;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:24:49,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-27 20:24:49,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:49,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152260624] [2024-11-27 20:24:49,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:49,755 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:49,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:49,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:49,776 INFO L85 PathProgramCache]: Analyzing trace with hash 399429333, now seen corresponding path program 1 times [2024-11-27 20:24:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:49,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731511551] [2024-11-27 20:24:49,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:49,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:49,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:24:49,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731511551] [2024-11-27 20:24:49,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731511551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:49,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907480619] [2024-11-27 20:24:49,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:49,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:49,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:49,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:49,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:24:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:49,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:49,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:49,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:50,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907480619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:50,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:50,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-27 20:24:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202992373] [2024-11-27 20:24:50,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:50,030 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:24:50,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:24:50,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:50,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:50,031 INFO L87 Difference]: Start difference. First operand 330 states and 424 transitions. cyclomatic complexity: 97 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-27 20:24:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:50,277 INFO L93 Difference]: Finished difference Result 348 states and 442 transitions. [2024-11-27 20:24:50,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 348 states and 442 transitions. [2024-11-27 20:24:50,281 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 243 [2024-11-27 20:24:50,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 348 states to 348 states and 442 transitions. [2024-11-27 20:24:50,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2024-11-27 20:24:50,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2024-11-27 20:24:50,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 442 transitions. [2024-11-27 20:24:50,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:24:50,286 INFO L218 hiAutomatonCegarLoop]: Abstraction has 348 states and 442 transitions. [2024-11-27 20:24:50,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 442 transitions. [2024-11-27 20:24:50,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-27 20:24:50,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 348 states have (on average 1.2701149425287357) internal successors, (442), 347 states have internal predecessors, (442), 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) [2024-11-27 20:24:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 442 transitions. [2024-11-27 20:24:50,317 INFO L240 hiAutomatonCegarLoop]: Abstraction has 348 states and 442 transitions. [2024-11-27 20:24:50,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:50,322 INFO L425 stractBuchiCegarLoop]: Abstraction has 348 states and 442 transitions. [2024-11-27 20:24:50,322 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:24:50,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 348 states and 442 transitions. [2024-11-27 20:24:50,329 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 243 [2024-11-27 20:24:50,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:24:50,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:24:50,331 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:50,331 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] [2024-11-27 20:24:50,331 INFO L747 eck$LassoCheckResult]: Stem: "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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:24:50,334 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1;" "isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:24:50,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-27 20:24:50,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:50,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734739959] [2024-11-27 20:24:50,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:50,350 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:50,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:50,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:50,369 INFO L85 PathProgramCache]: Analyzing trace with hash 986235347, now seen corresponding path program 1 times [2024-11-27 20:24:50,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:50,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134370430] [2024-11-27 20:24:50,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:50,388 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:50,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:50,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:50,404 INFO L85 PathProgramCache]: Analyzing trace with hash -264746601, now seen corresponding path program 1 times [2024-11-27 20:24:50,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:50,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313643905] [2024-11-27 20:24:50,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:50,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:24:50,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313643905] [2024-11-27 20:24:50,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313643905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:50,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351073502] [2024-11-27 20:24:50,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:50,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:50,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:50,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:50,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:24:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:50,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:24:50,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:50,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:50,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351073502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:50,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:50,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-27 20:24:50,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506699061] [2024-11-27 20:24:50,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:51,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:24:51,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:51,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:51,054 INFO L87 Difference]: Start difference. First operand 348 states and 442 transitions. cyclomatic complexity: 97 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) [2024-11-27 20:24:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:51,190 INFO L93 Difference]: Finished difference Result 689 states and 865 transitions. [2024-11-27 20:24:51,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 689 states and 865 transitions. [2024-11-27 20:24:51,199 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 486 [2024-11-27 20:24:51,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 689 states to 689 states and 865 transitions. [2024-11-27 20:24:51,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 689 [2024-11-27 20:24:51,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 689 [2024-11-27 20:24:51,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 689 states and 865 transitions. [2024-11-27 20:24:51,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:24:51,213 INFO L218 hiAutomatonCegarLoop]: Abstraction has 689 states and 865 transitions. [2024-11-27 20:24:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states and 865 transitions. [2024-11-27 20:24:51,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2024-11-27 20:24:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 689 states have (on average 1.25544267053701) internal successors, (865), 688 states have internal predecessors, (865), 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) [2024-11-27 20:24:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 865 transitions. [2024-11-27 20:24:51,250 INFO L240 hiAutomatonCegarLoop]: Abstraction has 689 states and 865 transitions. [2024-11-27 20:24:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:24:51,251 INFO L425 stractBuchiCegarLoop]: Abstraction has 689 states and 865 transitions. [2024-11-27 20:24:51,252 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 20:24:51,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 689 states and 865 transitions. [2024-11-27 20:24:51,258 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 486 [2024-11-27 20:24:51,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:24:51,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:24:51,259 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:51,260 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] [2024-11-27 20:24:51,261 INFO L747 eck$LassoCheckResult]: Stem: "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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret33#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:24:51,261 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet51#1;test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp~10#1);" "havoc test_#t~nondet52#1;test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___0~3#1);" "havoc test_#t~nondet53#1;test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1;" "isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:24:51,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-27 20:24:51,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:51,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596605480] [2024-11-27 20:24:51,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:51,273 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:51,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:51,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1414405880, now seen corresponding path program 1 times [2024-11-27 20:24:51,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:51,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718473984] [2024-11-27 20:24:51,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:51,322 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:51,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:51,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1017215028, now seen corresponding path program 1 times [2024-11-27 20:24:51,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:24:51,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366580455] [2024-11-27 20:24:51,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:51,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:51,355 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:51,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:24:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:52,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:24:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:24:52,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:24:52 BoogieIcfgContainer [2024-11-27 20:24:52,695 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:24:52,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:24:52,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:24:52,695 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:24:52,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:24:47" (3/4) ... [2024-11-27 20:24:52,702 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:24:52,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:24:52,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:24:52,777 INFO L158 Benchmark]: Toolchain (without parser) took 7147.03ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 78.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-27 20:24:52,777 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 74.5MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:24:52,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.24ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.2MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:24:52,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.62ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 69.1MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:24:52,778 INFO L158 Benchmark]: Boogie Preprocessor took 148.17ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 64.7MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:24:52,779 INFO L158 Benchmark]: RCFGBuilder took 1172.85ms. Allocated memory is still 117.4MB. Free memory was 64.7MB in the beginning and 78.8MB in the end (delta: -14.1MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-27 20:24:52,779 INFO L158 Benchmark]: BuchiAutomizer took 5000.29ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 81.9MB in the end (delta: -3.1MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2024-11-27 20:24:52,780 INFO L158 Benchmark]: Witness Printer took 78.29ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 78.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:24:52,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 74.5MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.24ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.2MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.62ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 69.1MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 148.17ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 64.7MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1172.85ms. Allocated memory is still 117.4MB. Free memory was 64.7MB in the beginning and 78.8MB in the end (delta: -14.1MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5000.29ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 81.9MB in the end (delta: -3.1MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Witness Printer took 78.29ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 78.7MB in the end (delta: 3.2MB). There was no memory consumed. 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [207] - GenericResultAtLocation [Line: 573]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [573] - GenericResultAtLocation [Line: 672]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [672] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [915] - GenericResultAtLocation [Line: 949]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [949] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 689 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.4s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 260 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, 1491 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1491 mSDsluCounter, 4056 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2879 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 1177 mSDtfsCounter, 298 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 962]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L1005] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__lowWaterSensor() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__highWaterSensor() [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L719] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L719] RET, EXPR isHighWaterLevel() [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L727] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__highWaterSensor() [L784] RET processEnvironment__wrappee__lowWaterSensor() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L700] RET __utac_acc__Specification3_spec__1() [L1005] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 962]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L1005] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__lowWaterSensor() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__highWaterSensor() [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L719] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L719] RET, EXPR isHighWaterLevel() [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L727] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__highWaterSensor() [L784] RET processEnvironment__wrappee__lowWaterSensor() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L700] RET __utac_acc__Specification3_spec__1() [L1005] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 20:24:52,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:53,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:53,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:53,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:53,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b993f6cf-af7b-4155-8944-c15bbff37474/bin/uautomizer-verify-aQ6SnzHsRB/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)