./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product59.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_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1 --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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:44:45,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:44:45,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 08:44:45,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:44:45,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:44:45,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:44:45,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:44:45,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:44:45,178 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:44:45,178 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:44:45,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:44:45,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:44:45,179 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 08:44:45,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:44:45,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:44:45,180 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:44:45,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:44:45,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:44:45,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:44:45,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 08:44:45,181 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 08:44:45,181 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_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1 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 -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2024-12-02 08:44:45,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:44:45,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:44:45,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:44:45,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:44:45,438 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:44:45,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-12-02 08:44:48,117 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/data/c282ae252/155bfaea285840ee8fd4e6b41c4b212e/FLAG2d00696e1 [2024-12-02 08:44:48,330 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:44:48,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2024-12-02 08:44:48,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/data/c282ae252/155bfaea285840ee8fd4e6b41c4b212e/FLAG2d00696e1 [2024-12-02 08:44:48,355 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/data/c282ae252/155bfaea285840ee8fd4e6b41c4b212e [2024-12-02 08:44:48,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:44:48,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:44:48,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:44:48,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:44:48,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:44:48,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b69114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48, skipping insertion in model container [2024-12-02 08:44:48,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:44:48,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:44:48,648 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:44:48,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] [2024-12-02 08:44:48,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] [2024-12-02 08:44:48,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:44:48,730 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:44:48,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48 WrapperNode [2024-12-02 08:44:48,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:44:48,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:44:48,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:44:48,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:44:48,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,779 INFO L138 Inliner]: procedures = 59, calls = 106, calls flagged for inlining = 59, calls inlined = 107, statements flattened = 720 [2024-12-02 08:44:48,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:44:48,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:44:48,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:44:48,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:44:48,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,804 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]. [2024-12-02 08:44:48,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,811 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:44:48,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:44:48,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:44:48,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:44:48,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (1/1) ... [2024-12-02 08:44:48,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:44:48,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:48,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:44:48,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 08:44:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:44:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:44:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:44:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:44:48,957 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:44:48,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:44:49,393 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-12-02 08:44:49,393 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:44:49,407 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:44:49,407 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:44:49,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:49 BoogieIcfgContainer [2024-12-02 08:44:49,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:44:49,408 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 08:44:49,408 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 08:44:49,413 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 08:44:49,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:44:49,414 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:44:48" (1/3) ... [2024-12-02 08:44:49,415 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5429c1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:44:49, skipping insertion in model container [2024-12-02 08:44:49,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:44:49,415 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:48" (2/3) ... [2024-12-02 08:44:49,415 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5429c1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:44:49, skipping insertion in model container [2024-12-02 08:44:49,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:44:49,415 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:49" (3/3) ... [2024-12-02 08:44:49,417 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2024-12-02 08:44:49,460 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 08:44:49,460 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 08:44:49,460 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 08:44:49,460 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 08:44:49,460 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 08:44:49,460 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 08:44:49,460 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 08:44:49,460 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 08:44:49,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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) [2024-12-02 08:44:49,482 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2024-12-02 08:44:49,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:44:49,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:44:49,487 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:49,487 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:49,487 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 08:44:49,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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) [2024-12-02 08:44:49,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2024-12-02 08:44:49,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:44:49,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:44:49,494 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:49,494 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:49,497 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#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___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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;" [2024-12-02 08:44:49,497 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:44:49,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:49,502 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-12-02 08:44:49,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:49,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131514584] [2024-12-02 08:44:49,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:49,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:49,576 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:49,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:49,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:49,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1505448446, now seen corresponding path program 1 times [2024-12-02 08:44:49,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:49,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908502527] [2024-12-02 08:44:49,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:49,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:49,613 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:49,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:49,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:49,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2053577273, now seen corresponding path program 1 times [2024-12-02 08:44:49,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:49,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078059032] [2024-12-02 08:44:49,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:49,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:49,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:44:49,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078059032] [2024-12-02 08:44:49,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078059032] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:49,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282290064] [2024-12-02 08:44:49,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:49,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:49,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:49,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:49,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:44:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:49,867 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:44:49,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:49,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:49,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282290064] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:44:49,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:44:49,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 08:44:49,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990106572] [2024-12-02 08:44:49,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:50,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:44:50,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:44:50,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:44:50,058 INFO L87 Difference]: Start difference. First operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-12-02 08:44:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:50,180 INFO L93 Difference]: Finished difference Result 453 states and 594 transitions. [2024-12-02 08:44:50,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 453 states and 594 transitions. [2024-12-02 08:44:50,188 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2024-12-02 08:44:50,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 453 states to 423 states and 564 transitions. [2024-12-02 08:44:50,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 423 [2024-12-02 08:44:50,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 423 [2024-12-02 08:44:50,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 423 states and 564 transitions. [2024-12-02 08:44:50,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:44:50,202 INFO L218 hiAutomatonCegarLoop]: Abstraction has 423 states and 564 transitions. [2024-12-02 08:44:50,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states and 564 transitions. [2024-12-02 08:44:50,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 244. [2024-12-02 08:44:50,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 244 states have (on average 1.3319672131147542) internal successors, (325), 243 states have internal predecessors, (325), 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) [2024-12-02 08:44:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2024-12-02 08:44:50,234 INFO L240 hiAutomatonCegarLoop]: Abstraction has 244 states and 325 transitions. [2024-12-02 08:44:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:50,238 INFO L425 stractBuchiCegarLoop]: Abstraction has 244 states and 325 transitions. [2024-12-02 08:44:50,238 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 08:44:50,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 325 transitions. [2024-12-02 08:44:50,240 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2024-12-02 08:44:50,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:44:50,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:44:50,241 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:50,241 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] [2024-12-02 08:44:50,241 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#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___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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;" [2024-12-02 08:44:50,241 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:44:50,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,242 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-12-02 08:44:50,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817444834] [2024-12-02 08:44:50,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,250 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:50,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1855299920, now seen corresponding path program 1 times [2024-12-02 08:44:50,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824438641] [2024-12-02 08:44:50,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:50,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:44:50,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824438641] [2024-12-02 08:44:50,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824438641] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:50,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007178027] [2024-12-02 08:44:50,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:50,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:50,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:50,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:44:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:50,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:44:50,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:50,335 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:50,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007178027] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:44:50,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:44:50,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 08:44:50,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710095086] [2024-12-02 08:44:50,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:50,344 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 08:44:50,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:44:50,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:44:50,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:44:50,344 INFO L87 Difference]: Start difference. First operand 244 states and 325 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:50,417 INFO L93 Difference]: Finished difference Result 307 states and 392 transitions. [2024-12-02 08:44:50,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 392 transitions. [2024-12-02 08:44:50,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2024-12-02 08:44:50,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 307 states and 392 transitions. [2024-12-02 08:44:50,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 307 [2024-12-02 08:44:50,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 307 [2024-12-02 08:44:50,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 392 transitions. [2024-12-02 08:44:50,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:44:50,423 INFO L218 hiAutomatonCegarLoop]: Abstraction has 307 states and 392 transitions. [2024-12-02 08:44:50,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 392 transitions. [2024-12-02 08:44:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2024-12-02 08:44:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 307 states have (on average 1.276872964169381) internal successors, (392), 306 states have internal predecessors, (392), 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) [2024-12-02 08:44:50,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 392 transitions. [2024-12-02 08:44:50,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 307 states and 392 transitions. [2024-12-02 08:44:50,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:44:50,435 INFO L425 stractBuchiCegarLoop]: Abstraction has 307 states and 392 transitions. [2024-12-02 08:44:50,435 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 08:44:50,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 392 transitions. [2024-12-02 08:44:50,437 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2024-12-02 08:44:50,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:44:50,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:44:50,437 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:50,438 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] [2024-12-02 08:44:50,438 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#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___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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;" [2024-12-02 08:44:50,438 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#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~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#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~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#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~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:44:50,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-12-02 08:44:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462581361] [2024-12-02 08:44:50,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,457 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:50,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,464 INFO L85 PathProgramCache]: Analyzing trace with hash 627334440, now seen corresponding path program 1 times [2024-12-02 08:44:50,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331521102] [2024-12-02 08:44:50,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:50,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:44:50,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331521102] [2024-12-02 08:44:50,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331521102] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:50,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986191765] [2024-12-02 08:44:50,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:50,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:50,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:50,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:44:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:50,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:44:50,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:50,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:50,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986191765] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:44:50,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:44:50,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 08:44:50,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808334733] [2024-12-02 08:44:50,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:50,651 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 08:44:50,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:44:50,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:50,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:44:50,652 INFO L87 Difference]: Start difference. First operand 307 states and 392 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-12-02 08:44:50,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:50,775 INFO L93 Difference]: Finished difference Result 603 states and 755 transitions. [2024-12-02 08:44:50,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 603 states and 755 transitions. [2024-12-02 08:44:50,779 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 427 [2024-12-02 08:44:50,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 603 states to 603 states and 755 transitions. [2024-12-02 08:44:50,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 603 [2024-12-02 08:44:50,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 603 [2024-12-02 08:44:50,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 603 states and 755 transitions. [2024-12-02 08:44:50,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:44:50,785 INFO L218 hiAutomatonCegarLoop]: Abstraction has 603 states and 755 transitions. [2024-12-02 08:44:50,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states and 755 transitions. [2024-12-02 08:44:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2024-12-02 08:44:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.252072968490879) internal successors, (755), 602 states have internal predecessors, (755), 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) [2024-12-02 08:44:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 755 transitions. [2024-12-02 08:44:50,801 INFO L240 hiAutomatonCegarLoop]: Abstraction has 603 states and 755 transitions. [2024-12-02 08:44:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:50,802 INFO L425 stractBuchiCegarLoop]: Abstraction has 603 states and 755 transitions. [2024-12-02 08:44:50,802 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 08:44:50,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 755 transitions. [2024-12-02 08:44:50,806 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 427 [2024-12-02 08:44:50,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:44:50,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:44:50,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:50,807 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] [2024-12-02 08:44:50,807 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#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___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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;" [2024-12-02 08:44:50,807 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet9#1;test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet10#1;test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet11#1;test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#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~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#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~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#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~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1;" "__utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 08:44:50,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,808 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-12-02 08:44:50,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746200241] [2024-12-02 08:44:50,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,815 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:50,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1551973411, now seen corresponding path program 1 times [2024-12-02 08:44:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994023874] [2024-12-02 08:44:50,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,830 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:50,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash -413884084, now seen corresponding path program 1 times [2024-12-02 08:44:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:44:50,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481203860] [2024-12-02 08:44:50,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,854 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:50,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:44:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:51,678 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:44:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:44:51,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:44:51 BoogieIcfgContainer [2024-12-02 08:44:51,725 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 08:44:51,725 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:44:51,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:44:51,726 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:44:51,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:49" (3/4) ... [2024-12-02 08:44:51,728 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 08:44:51,767 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:44:51,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:44:51,768 INFO L158 Benchmark]: Toolchain (without parser) took 3409.53ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 78.5MB in the end (delta: 37.9MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2024-12-02 08:44:51,768 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:44:51,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.92ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 97.4MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:44:51,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.20ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 94.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:44:51,769 INFO L158 Benchmark]: Boogie Preprocessor took 42.94ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 90.6MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:44:51,769 INFO L158 Benchmark]: RCFGBuilder took 583.98ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 60.8MB in the end (delta: 29.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 08:44:51,769 INFO L158 Benchmark]: BuchiAutomizer took 2316.68ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 82.3MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:44:51,770 INFO L158 Benchmark]: Witness Printer took 41.53ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 78.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:44:51,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.92ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 97.4MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.20ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 94.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.94ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 90.6MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 583.98ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 60.8MB in the end (delta: 29.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2316.68ms. Allocated memory is still 142.6MB. Free memory was 60.6MB in the beginning and 82.3MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.53ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 78.5MB in the end (delta: 3.8MB). 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [160] - GenericResultAtLocation [Line: 230]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [230] - GenericResultAtLocation [Line: 469]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [469] - GenericResultAtLocation [Line: 835]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [835] - GenericResultAtLocation [Line: 844]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [844] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [893] - GenericResultAtLocation [Line: 993]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [993] * 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 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 179 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 872 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 872 mSDsluCounter, 2767 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2009 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 758 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 176]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int switchedOnBeforeTS ; [L894] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L1020] int retValue_acc ; [L1023] retValue_acc = 1 [L1024] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L961] CALL __utac_acc__Specification5_spec__1() [L850] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L961] RET __utac_acc__Specification5_spec__1() [L962] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L245] CALL __utac_acc__Specification5_spec__2() [L859] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] switchedOnBeforeTS = isPumpRunning() [L245] RET __utac_acc__Specification5_spec__2() [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L302] int tmp ; [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L423] RET, EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND FALSE !(\read(tmp)) [L289] FCALL processEnvironment__wrappee__base() [L320] RET processEnvironment__wrappee__highWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification5_spec__3() [L865] int tmp ; [L866] int tmp___0 ; [L870] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L870] RET, EXPR getWaterLevel() [L870] tmp = getWaterLevel() [L872] COND TRUE tmp != 2 [L874] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L874] RET, EXPR isPumpRunning() [L874] tmp___0 = isPumpRunning() [L876] COND FALSE !(\read(tmp___0)) [L262] RET __utac_acc__Specification5_spec__3() [L219] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 176]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int switchedOnBeforeTS ; [L894] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L1020] int retValue_acc ; [L1023] retValue_acc = 1 [L1024] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L961] CALL __utac_acc__Specification5_spec__1() [L850] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L961] RET __utac_acc__Specification5_spec__1() [L962] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L245] CALL __utac_acc__Specification5_spec__2() [L859] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] switchedOnBeforeTS = isPumpRunning() [L245] RET __utac_acc__Specification5_spec__2() [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L302] int tmp ; [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L423] RET, EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND FALSE !(\read(tmp)) [L289] FCALL processEnvironment__wrappee__base() [L320] RET processEnvironment__wrappee__highWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification5_spec__3() [L865] int tmp ; [L866] int tmp___0 ; [L870] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L870] RET, EXPR getWaterLevel() [L870] tmp = getWaterLevel() [L872] COND TRUE tmp != 2 [L874] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L874] RET, EXPR isPumpRunning() [L874] tmp___0 = isPumpRunning() [L876] COND FALSE !(\read(tmp___0)) [L262] RET __utac_acc__Specification5_spec__3() [L219] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 08:44:51,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:44:51,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:44:52,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:44:52,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c48fad0-5342-479b-a882-4a69ce9390b6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)