./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.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_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/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_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/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_1c1791bd-67e1-43ae-9f49-8043a8aca98e/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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:10:39,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:10:39,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 04:10:39,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:10:39,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:10:39,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:10:39,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:10:39,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:10:39,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:10:39,389 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:10:39,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:10:39,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:10:39,390 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:10:39,390 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:10:39,390 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:10:39,390 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:10:39,390 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:10:39,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:10:39,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:10:39,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:10:39,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:10:39,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:10:39,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:10:39,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:10:39,393 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:10:39,393 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_1c1791bd-67e1-43ae-9f49-8043a8aca98e/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 -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2024-11-28 04:10:39,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:10:39,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:10:39,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:10:39,755 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:10:39,756 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:10:39,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2024-11-28 04:10:42,799 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/data/eb5023d1d/8343ca2d7af040d9ad4c6a164c75bf5c/FLAG0080f27b8 [2024-11-28 04:10:43,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:10:43,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2024-11-28 04:10:43,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/data/eb5023d1d/8343ca2d7af040d9ad4c6a164c75bf5c/FLAG0080f27b8 [2024-11-28 04:10:43,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/data/eb5023d1d/8343ca2d7af040d9ad4c6a164c75bf5c [2024-11-28 04:10:43,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:10:43,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:10:43,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:10:43,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:10:43,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:10:43,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:43,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508cd23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43, skipping insertion in model container [2024-11-28 04:10:43,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:43,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:10:43,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:10:43,859 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:10:43,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-28 04:10:43,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-28 04:10:43,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] [2024-11-28 04:10:43,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [165] [2024-11-28 04:10:43,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [398] [2024-11-28 04:10:43,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [502] [2024-11-28 04:10:43,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [536] [2024-11-28 04:10:43,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] [2024-11-28 04:10:43,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:10:43,963 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:10:43,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43 WrapperNode [2024-11-28 04:10:43,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:10:43,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:10:43,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:10:43,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:10:43,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:43,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,034 INFO L138 Inliner]: procedures = 56, calls = 104, calls flagged for inlining = 57, calls inlined = 143, statements flattened = 982 [2024-11-28 04:10:44,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:10:44,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:10:44,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:10:44,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:10:44,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,068 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]. [2024-11-28 04:10:44,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,083 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:10:44,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:10:44,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:10:44,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:10:44,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (1/1) ... [2024-11-28 04:10:44,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:10:44,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:44,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:10:44,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:10:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:10:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:10:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:10:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:10:44,302 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:10:44,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:10:45,308 INFO L? ?]: Removed 247 outVars from TransFormulas that were not future-live. [2024-11-28 04:10:45,308 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:10:45,337 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:10:45,337 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:10:45,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:10:45 BoogieIcfgContainer [2024-11-28 04:10:45,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:10:45,339 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:10:45,339 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:10:45,351 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:10:45,351 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:10:45,352 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:10:43" (1/3) ... [2024-11-28 04:10:45,353 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fb9c57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:10:45, skipping insertion in model container [2024-11-28 04:10:45,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:10:45,353 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:10:43" (2/3) ... [2024-11-28 04:10:45,353 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fb9c57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:10:45, skipping insertion in model container [2024-11-28 04:10:45,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:10:45,353 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:10:45" (3/3) ... [2024-11-28 04:10:45,355 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2024-11-28 04:10:45,429 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:10:45,430 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:10:45,430 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:10:45,431 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:10:45,431 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:10:45,431 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:10:45,431 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:10:45,431 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:10:45,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 276 states have internal predecessors, (379), 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) [2024-11-28 04:10:45,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2024-11-28 04:10:45,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:10:45,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:10:45,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:45,492 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:45,492 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:10:45,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 276 states have internal predecessors, (379), 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) [2024-11-28 04:10:45,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 180 [2024-11-28 04:10:45,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:10:45,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:10:45,514 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:45,514 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:45,521 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "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~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:10:45,521 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:10:45,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-28 04:10:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:45,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418946242] [2024-11-28 04:10:45,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:45,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:45,650 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:45,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:45,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1792910984, now seen corresponding path program 1 times [2024-11-28 04:10:45,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:45,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192965124] [2024-11-28 04:10:45,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:45,710 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:45,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:45,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:45,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1836634180, now seen corresponding path program 1 times [2024-11-28 04:10:45,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:45,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688359854] [2024-11-28 04:10:45,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:45,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:45,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:10:45,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688359854] [2024-11-28 04:10:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688359854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216181405] [2024-11-28 04:10:45,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:45,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:45,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:45,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:45,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:10:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:46,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:10:46,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:46,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:46,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216181405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:46,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:46,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-28 04:10:46,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740789841] [2024-11-28 04:10:46,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:46,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:10:46,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:10:46,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:10:46,358 INFO L87 Difference]: Start difference. First operand has 277 states, 276 states have (on average 1.3731884057971016) internal successors, (379), 276 states have internal predecessors, (379), 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) [2024-11-28 04:10:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:46,502 INFO L93 Difference]: Finished difference Result 271 states and 362 transitions. [2024-11-28 04:10:46,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 362 transitions. [2024-11-28 04:10:46,511 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2024-11-28 04:10:46,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 261 states and 352 transitions. [2024-11-28 04:10:46,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 261 [2024-11-28 04:10:46,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 261 [2024-11-28 04:10:46,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 261 states and 352 transitions. [2024-11-28 04:10:46,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:10:46,571 INFO L218 hiAutomatonCegarLoop]: Abstraction has 261 states and 352 transitions. [2024-11-28 04:10:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states and 352 transitions. [2024-11-28 04:10:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-11-28 04:10:46,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.3486590038314177) internal successors, (352), 260 states have internal predecessors, (352), 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) [2024-11-28 04:10:46,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 352 transitions. [2024-11-28 04:10:46,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 261 states and 352 transitions. [2024-11-28 04:10:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:10:46,611 INFO L425 stractBuchiCegarLoop]: Abstraction has 261 states and 352 transitions. [2024-11-28 04:10:46,611 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:10:46,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 352 transitions. [2024-11-28 04:10:46,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2024-11-28 04:10:46,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:10:46,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:10:46,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:46,615 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] [2024-11-28 04:10:46,615 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "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~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:10:46,615 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1;" "processEnvironment_#t~ret11#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret11#1;havoc processEnvironment_#t~ret11#1;" "assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:10:46,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:46,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-28 04:10:46,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:46,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697506140] [2024-11-28 04:10:46,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:46,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:46,629 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:46,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:46,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:46,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1554591697, now seen corresponding path program 1 times [2024-11-28 04:10:46,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:46,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794230505] [2024-11-28 04:10:46,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:46,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:10:46,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794230505] [2024-11-28 04:10:46,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794230505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:46,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696718113] [2024-11-28 04:10:46,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:46,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:46,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:46,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:46,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:10:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:46,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:10:46,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:46,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:46,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696718113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:46,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:46,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 04:10:46,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446298121] [2024-11-28 04:10:46,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:46,779 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 04:10:46,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:10:46,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:10:46,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:10:46,783 INFO L87 Difference]: Start difference. First operand 261 states and 352 transitions. cyclomatic complexity: 93 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) [2024-11-28 04:10:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:46,938 INFO L93 Difference]: Finished difference Result 275 states and 352 transitions. [2024-11-28 04:10:46,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 352 transitions. [2024-11-28 04:10:46,942 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 188 [2024-11-28 04:10:46,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 275 states and 352 transitions. [2024-11-28 04:10:46,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 275 [2024-11-28 04:10:46,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 275 [2024-11-28 04:10:46,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 275 states and 352 transitions. [2024-11-28 04:10:46,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:10:46,951 INFO L218 hiAutomatonCegarLoop]: Abstraction has 275 states and 352 transitions. [2024-11-28 04:10:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states and 352 transitions. [2024-11-28 04:10:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2024-11-28 04:10:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 275 states have (on average 1.28) internal successors, (352), 274 states have internal predecessors, (352), 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) [2024-11-28 04:10:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 352 transitions. [2024-11-28 04:10:46,970 INFO L240 hiAutomatonCegarLoop]: Abstraction has 275 states and 352 transitions. [2024-11-28 04:10:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:10:46,971 INFO L425 stractBuchiCegarLoop]: Abstraction has 275 states and 352 transitions. [2024-11-28 04:10:46,971 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:10:46,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 275 states and 352 transitions. [2024-11-28 04:10:46,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 188 [2024-11-28 04:10:46,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:10:46,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:10:46,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:46,975 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] [2024-11-28 04:10:46,975 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "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~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:10:46,975 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:10:46,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:46,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-28 04:10:46,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:46,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033356603] [2024-11-28 04:10:46,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:46,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:46,989 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:46,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:46,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:46,999 INFO L85 PathProgramCache]: Analyzing trace with hash 301866888, now seen corresponding path program 1 times [2024-11-28 04:10:46,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:46,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492671529] [2024-11-28 04:10:47,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:47,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,011 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:47,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:47,024 INFO L85 PathProgramCache]: Analyzing trace with hash -949115060, now seen corresponding path program 1 times [2024-11-28 04:10:47,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:47,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722558854] [2024-11-28 04:10:47,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:47,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:47,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:10:47,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722558854] [2024-11-28 04:10:47,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722558854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:47,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928315183] [2024-11-28 04:10:47,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:47,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:47,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:47,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:47,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:10:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:47,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:10:47,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:47,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:47,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928315183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:47,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:47,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-28 04:10:47,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984615922] [2024-11-28 04:10:47,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:47,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:10:47,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:10:47,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:10:47,609 INFO L87 Difference]: Start difference. First operand 275 states and 352 transitions. cyclomatic complexity: 79 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) [2024-11-28 04:10:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:47,718 INFO L93 Difference]: Finished difference Result 543 states and 689 transitions. [2024-11-28 04:10:47,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 543 states and 689 transitions. [2024-11-28 04:10:47,722 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 376 [2024-11-28 04:10:47,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 543 states to 543 states and 689 transitions. [2024-11-28 04:10:47,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 543 [2024-11-28 04:10:47,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 543 [2024-11-28 04:10:47,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 543 states and 689 transitions. [2024-11-28 04:10:47,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:10:47,737 INFO L218 hiAutomatonCegarLoop]: Abstraction has 543 states and 689 transitions. [2024-11-28 04:10:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states and 689 transitions. [2024-11-28 04:10:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-11-28 04:10:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 543 states have (on average 1.2688766114180479) internal successors, (689), 542 states have internal predecessors, (689), 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) [2024-11-28 04:10:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 689 transitions. [2024-11-28 04:10:47,774 INFO L240 hiAutomatonCegarLoop]: Abstraction has 543 states and 689 transitions. [2024-11-28 04:10:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:10:47,779 INFO L425 stractBuchiCegarLoop]: Abstraction has 543 states and 689 transitions. [2024-11-28 04:10:47,781 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:10:47,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 543 states and 689 transitions. [2024-11-28 04:10:47,789 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 376 [2024-11-28 04:10:47,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:10:47,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:10:47,790 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:47,790 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] [2024-11-28 04:10:47,791 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "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~ret54#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:10:47,791 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret29#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret29#1;havoc __utac_acc__Specification3_spec__1_#t~ret29#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_#t~ret30#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:10:47,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-28 04:10:47,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:47,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869750426] [2024-11-28 04:10:47,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:47,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,811 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:47,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:47,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1962499043, now seen corresponding path program 1 times [2024-11-28 04:10:47,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:47,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096028197] [2024-11-28 04:10:47,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:47,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,849 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:47,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1565308191, now seen corresponding path program 1 times [2024-11-28 04:10:47,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:10:47,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594674043] [2024-11-28 04:10:47,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:10:47,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,895 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:47,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:10:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:49,056 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:10:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:10:49,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:10:49 BoogieIcfgContainer [2024-11-28 04:10:49,128 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:10:49,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:10:49,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:10:49,133 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:10:49,134 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:10:45" (3/4) ... [2024-11-28 04:10:49,135 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 04:10:49,202 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:10:49,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:10:49,203 INFO L158 Benchmark]: Toolchain (without parser) took 5805.68ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 92.5MB in the beginning and 113.7MB in the end (delta: -21.2MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-11-28 04:10:49,203 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:10:49,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.09ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 73.7MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:10:49,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.58ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 69.5MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:10:49,206 INFO L158 Benchmark]: Boogie Preprocessor took 74.09ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 65.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:10:49,207 INFO L158 Benchmark]: RCFGBuilder took 1227.68ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 79.1MB in the end (delta: -14.0MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-28 04:10:49,207 INFO L158 Benchmark]: BuchiAutomizer took 3789.51ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 79.1MB in the beginning and 117.1MB in the end (delta: -38.0MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-11-28 04:10:49,208 INFO L158 Benchmark]: Witness Printer took 73.35ms. Allocated memory is still 192.9MB. Free memory was 115.5MB in the beginning and 113.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:10:49,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.09ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 73.7MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.58ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 69.5MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.09ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 65.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1227.68ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 79.1MB in the end (delta: -14.0MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3789.51ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 79.1MB in the beginning and 117.1MB in the end (delta: -38.0MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 73.35ms. Allocated memory is still 192.9MB. Free memory was 115.5MB in the beginning and 113.7MB in the end (delta: 1.7MB). 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [96] - GenericResultAtLocation [Line: 165]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [165] - GenericResultAtLocation [Line: 398]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [398] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [502] - GenericResultAtLocation [Line: 536]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [536] - GenericResultAtLocation [Line: 902]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [902] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 543 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 1125 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1125 mSDsluCounter, 2471 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1585 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 886 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 113]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L400] int waterLevel = 1; [L401] int methaneLevelCritical = 0; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] int retValue_acc ; [L977] int tmp ; [L981] FCALL select_helpers() [L982] FCALL select_features() [L983] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L983] RET, EXPR valid_product() [L983] tmp = valid_product() [L985] COND TRUE \read(tmp) [L987] FCALL setup() [L988] CALL runTest() [L970] CALL test() [L102] int splverifierCounter ; [L103] int tmp ; [L104] int tmp___0 ; [L105] int tmp___1 ; [L106] int tmp___2 ; [L109] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L113] COND TRUE splverifierCounter < 4 [L119] tmp = __VERIFIER_nondet_int() [L121] COND FALSE !(\read(tmp)) [L129] tmp___0 = __VERIFIER_nondet_int() [L131] COND FALSE !(\read(tmp___0)) [L139] tmp___2 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___2) [L154] CALL timeShift() [L183] COND FALSE !(\read(pumpRunning)) [L190] COND TRUE \read(systemActive) [L192] CALL processEnvironment() [L264] int tmp ; [L267] COND FALSE !(\read(pumpRunning)) [L282] CALL processEnvironment__wrappee__lowWaterSensor() [L238] int tmp ; [L241] COND FALSE !(\read(pumpRunning)) [L256] CALL processEnvironment__wrappee__highWaterSensor() [L212] int tmp ; [L215] COND TRUE ! pumpRunning [L217] CALL, EXPR isHighWaterLevel() [L361] int retValue_acc ; [L362] int tmp ; [L363] int tmp___0 ; [L367] CALL, EXPR isHighWaterSensorDry() [L480] int retValue_acc ; [L483] COND TRUE waterLevel < 2 [L484] retValue_acc = 1 [L485] return (retValue_acc); [L367] RET, EXPR isHighWaterSensorDry() [L367] tmp = isHighWaterSensorDry() [L369] COND TRUE \read(tmp) [L370] tmp___0 = 0 [L374] retValue_acc = tmp___0 [L375] return (retValue_acc); [L217] RET, EXPR isHighWaterLevel() [L217] tmp = isHighWaterLevel() [L219] COND FALSE !(\read(tmp)) [L225] FCALL processEnvironment__wrappee__base() [L256] RET processEnvironment__wrappee__highWaterSensor() [L282] RET processEnvironment__wrappee__lowWaterSensor() [L192] RET processEnvironment() [L198] CALL __utac_acc__Specification3_spec__1() [L504] int tmp ; [L505] int tmp___0 ; [L506] int tmp___1 ; [L510] CALL, EXPR isMethaneLevelCritical() [L439] int retValue_acc ; [L442] retValue_acc = methaneLevelCritical [L443] return (retValue_acc); [L510] RET, EXPR isMethaneLevelCritical() [L510] tmp = isMethaneLevelCritical() [L512] COND FALSE !(\read(tmp)) [L516] CALL, EXPR getWaterLevel() [L471] int retValue_acc ; [L474] retValue_acc = waterLevel [L475] return (retValue_acc); [L516] RET, EXPR getWaterLevel() [L516] tmp___0 = getWaterLevel() [L518] COND FALSE !(tmp___0 == 2) [L198] RET __utac_acc__Specification3_spec__1() [L154] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 113]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L400] int waterLevel = 1; [L401] int methaneLevelCritical = 0; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] int retValue_acc ; [L977] int tmp ; [L981] FCALL select_helpers() [L982] FCALL select_features() [L983] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L983] RET, EXPR valid_product() [L983] tmp = valid_product() [L985] COND TRUE \read(tmp) [L987] FCALL setup() [L988] CALL runTest() [L970] CALL test() [L102] int splverifierCounter ; [L103] int tmp ; [L104] int tmp___0 ; [L105] int tmp___1 ; [L106] int tmp___2 ; [L109] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L113] COND TRUE splverifierCounter < 4 [L119] tmp = __VERIFIER_nondet_int() [L121] COND FALSE !(\read(tmp)) [L129] tmp___0 = __VERIFIER_nondet_int() [L131] COND FALSE !(\read(tmp___0)) [L139] tmp___2 = __VERIFIER_nondet_int() [L141] COND TRUE \read(tmp___2) [L154] CALL timeShift() [L183] COND FALSE !(\read(pumpRunning)) [L190] COND TRUE \read(systemActive) [L192] CALL processEnvironment() [L264] int tmp ; [L267] COND FALSE !(\read(pumpRunning)) [L282] CALL processEnvironment__wrappee__lowWaterSensor() [L238] int tmp ; [L241] COND FALSE !(\read(pumpRunning)) [L256] CALL processEnvironment__wrappee__highWaterSensor() [L212] int tmp ; [L215] COND TRUE ! pumpRunning [L217] CALL, EXPR isHighWaterLevel() [L361] int retValue_acc ; [L362] int tmp ; [L363] int tmp___0 ; [L367] CALL, EXPR isHighWaterSensorDry() [L480] int retValue_acc ; [L483] COND TRUE waterLevel < 2 [L484] retValue_acc = 1 [L485] return (retValue_acc); [L367] RET, EXPR isHighWaterSensorDry() [L367] tmp = isHighWaterSensorDry() [L369] COND TRUE \read(tmp) [L370] tmp___0 = 0 [L374] retValue_acc = tmp___0 [L375] return (retValue_acc); [L217] RET, EXPR isHighWaterLevel() [L217] tmp = isHighWaterLevel() [L219] COND FALSE !(\read(tmp)) [L225] FCALL processEnvironment__wrappee__base() [L256] RET processEnvironment__wrappee__highWaterSensor() [L282] RET processEnvironment__wrappee__lowWaterSensor() [L192] RET processEnvironment() [L198] CALL __utac_acc__Specification3_spec__1() [L504] int tmp ; [L505] int tmp___0 ; [L506] int tmp___1 ; [L510] CALL, EXPR isMethaneLevelCritical() [L439] int retValue_acc ; [L442] retValue_acc = methaneLevelCritical [L443] return (retValue_acc); [L510] RET, EXPR isMethaneLevelCritical() [L510] tmp = isMethaneLevelCritical() [L512] COND FALSE !(\read(tmp)) [L516] CALL, EXPR getWaterLevel() [L471] int retValue_acc ; [L474] retValue_acc = waterLevel [L475] return (retValue_acc); [L516] RET, EXPR getWaterLevel() [L516] tmp___0 = getWaterLevel() [L518] COND FALSE !(tmp___0 == 2) [L198] RET __utac_acc__Specification3_spec__1() [L154] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:10:49,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:10:49,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:10:49,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:10:49,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c1791bd-67e1-43ae-9f49-8043a8aca98e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)