./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product37.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_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/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_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/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_a6b757c4-98b6-457b-81e9-2165f7e4478a/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 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:27:21,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:27:21,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 07:27:21,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:27:21,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:27:21,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:27:21,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:27:21,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:27:21,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:27:21,882 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:27:21,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:27:21,883 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 07:27:21,883 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 07:27:21,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 07:27:21,884 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:27:21,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:27:21,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:27:21,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 07:27:21,886 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 07:27:21,886 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_a6b757c4-98b6-457b-81e9-2165f7e4478a/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 -> 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 [2024-12-02 07:27:22,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:27:22,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:27:22,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:27:22,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:27:22,108 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:27:22,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2024-12-02 07:27:24,714 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/data/2f96808e3/fcaf41cac0ba49d68e93f7d937a31f68/FLAG67e85d5cb [2024-12-02 07:27:24,966 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:27:24,966 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2024-12-02 07:27:24,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/data/2f96808e3/fcaf41cac0ba49d68e93f7d937a31f68/FLAG67e85d5cb [2024-12-02 07:27:25,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/data/2f96808e3/fcaf41cac0ba49d68e93f7d937a31f68 [2024-12-02 07:27:25,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:27:25,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:27:25,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:27:25,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:27:25,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:27:25,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313866e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25, skipping insertion in model container [2024-12-02 07:27:25,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:27:25,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:27:25,566 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:27:25,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [150] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [201] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [304] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [313] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [496] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [561] [2024-12-02 07:27:25,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [596] [2024-12-02 07:27:25,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:27:25,636 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:27:25,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25 WrapperNode [2024-12-02 07:27:25,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:27:25,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:27:25,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:27:25,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:27:25,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,680 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 54, calls inlined = 87, statements flattened = 569 [2024-12-02 07:27:25,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:27:25,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:27:25,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:27:25,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:27:25,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,706 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 07:27:25,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,714 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:27:25,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:27:25,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:27:25,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:27:25,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (1/1) ... [2024-12-02 07:27:25,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 07:27:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:27:25,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 07:27:25,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 07:27:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:27:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:27:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:27:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:27:25,856 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:27:25,858 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:27:26,222 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-12-02 07:27:26,222 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:27:26,235 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:27:26,235 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 07:27:26,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:27:26 BoogieIcfgContainer [2024-12-02 07:27:26,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:27:26,237 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 07:27:26,237 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 07:27:26,242 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 07:27:26,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 07:27:26,242 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 07:27:25" (1/3) ... [2024-12-02 07:27:26,243 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5477804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 07:27:26, skipping insertion in model container [2024-12-02 07:27:26,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 07:27:26,243 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:27:25" (2/3) ... [2024-12-02 07:27:26,244 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5477804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 07:27:26, skipping insertion in model container [2024-12-02 07:27:26,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 07:27:26,244 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:27:26" (3/3) ... [2024-12-02 07:27:26,245 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2024-12-02 07:27:26,285 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 07:27:26,285 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 07:27:26,285 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 07:27:26,285 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 07:27:26,286 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 07:27:26,286 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 07:27:26,286 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 07:27:26,286 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 07:27:26,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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 07:27:26,308 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-12-02 07:27:26,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:27:26,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:27:26,314 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:26,314 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 07:27:26,314 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 07:27:26,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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 07:27:26,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-12-02 07:27:26,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:27:26,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:27:26,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:26,321 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 07:27:26,325 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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#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~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:27:26,325 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#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~ret9#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~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret9#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~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:27:26,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-12-02 07:27:26,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:26,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856991099] [2024-12-02 07:27:26,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:26,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:26,412 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:26,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:26,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:26,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1047825534, now seen corresponding path program 1 times [2024-12-02 07:27:26,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:26,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894096912] [2024-12-02 07:27:26,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:26,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:26,453 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:26,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:26,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:26,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1783767111, now seen corresponding path program 1 times [2024-12-02 07:27:26,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:26,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241436928] [2024-12-02 07:27:26,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 07:27:26,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241436928] [2024-12-02 07:27:26,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241436928] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:27:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637957930] [2024-12-02 07:27:26,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:26,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:27:26,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:27:26,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:27:26,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:27:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:26,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:27:26,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:27:26,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:27:26,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637957930] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:27:26,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:27:26,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 07:27:26,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649377779] [2024-12-02 07:27:26,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:27:26,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 07:27:26,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:27:26,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:27:26,920 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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 07:27:26,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:27:26,995 INFO L93 Difference]: Finished difference Result 161 states and 210 transitions. [2024-12-02 07:27:26,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 210 transitions. [2024-12-02 07:27:27,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2024-12-02 07:27:27,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 151 states and 200 transitions. [2024-12-02 07:27:27,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2024-12-02 07:27:27,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2024-12-02 07:27:27,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 200 transitions. [2024-12-02 07:27:27,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 07:27:27,009 INFO L218 hiAutomatonCegarLoop]: Abstraction has 151 states and 200 transitions. [2024-12-02 07:27:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 200 transitions. [2024-12-02 07:27:27,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-12-02 07:27:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 151 states have (on average 1.3245033112582782) internal successors, (200), 150 states have internal predecessors, (200), 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 07:27:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2024-12-02 07:27:27,039 INFO L240 hiAutomatonCegarLoop]: Abstraction has 151 states and 200 transitions. [2024-12-02 07:27:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:27:27,044 INFO L425 stractBuchiCegarLoop]: Abstraction has 151 states and 200 transitions. [2024-12-02 07:27:27,044 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 07:27:27,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 200 transitions. [2024-12-02 07:27:27,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2024-12-02 07:27:27,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:27:27,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:27:27,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:27,047 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 07:27:27,047 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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#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~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:27:27,047 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#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~ret9#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~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret9#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~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#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~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:27:27,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-12-02 07:27:27,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119617166] [2024-12-02 07:27:27,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,058 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:27,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,067 INFO L85 PathProgramCache]: Analyzing trace with hash -319969031, now seen corresponding path program 1 times [2024-12-02 07:27:27,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724841257] [2024-12-02 07:27:27,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:27,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 07:27:27,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724841257] [2024-12-02 07:27:27,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724841257] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:27:27,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161086323] [2024-12-02 07:27:27,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:27:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:27:27,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:27:27,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:27:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:27,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:27:27,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:27:27,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:27:27,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161086323] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:27:27,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:27:27,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 07:27:27,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708319496] [2024-12-02 07:27:27,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:27:27,157 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 07:27:27,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 07:27:27,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:27:27,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:27:27,158 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. cyclomatic complexity: 51 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 07:27:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:27:27,242 INFO L93 Difference]: Finished difference Result 213 states and 272 transitions. [2024-12-02 07:27:27,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 272 transitions. [2024-12-02 07:27:27,245 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2024-12-02 07:27:27,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 213 states and 272 transitions. [2024-12-02 07:27:27,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 213 [2024-12-02 07:27:27,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2024-12-02 07:27:27,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 213 states and 272 transitions. [2024-12-02 07:27:27,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 07:27:27,248 INFO L218 hiAutomatonCegarLoop]: Abstraction has 213 states and 272 transitions. [2024-12-02 07:27:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states and 272 transitions. [2024-12-02 07:27:27,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-12-02 07:27:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.2769953051643192) internal successors, (272), 212 states have internal predecessors, (272), 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 07:27:27,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 272 transitions. [2024-12-02 07:27:27,256 INFO L240 hiAutomatonCegarLoop]: Abstraction has 213 states and 272 transitions. [2024-12-02 07:27:27,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:27:27,257 INFO L425 stractBuchiCegarLoop]: Abstraction has 213 states and 272 transitions. [2024-12-02 07:27:27,257 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 07:27:27,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 272 transitions. [2024-12-02 07:27:27,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 146 [2024-12-02 07:27:27,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:27:27,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:27:27,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:27,260 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:27,260 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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#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~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:27:27,260 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#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~ret9#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~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret9#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~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#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~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "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~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#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~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:27:27,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-12-02 07:27:27,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229213281] [2024-12-02 07:27:27,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,268 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:27,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1140627599, now seen corresponding path program 1 times [2024-12-02 07:27:27,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122108204] [2024-12-02 07:27:27,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:27,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 07:27:27,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122108204] [2024-12-02 07:27:27,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122108204] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:27:27,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214652608] [2024-12-02 07:27:27,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:27:27,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:27:27,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:27:27,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:27:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:27,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:27:27,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:27:27,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:27:27,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214652608] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:27:27,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:27:27,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-12-02 07:27:27,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550971476] [2024-12-02 07:27:27,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:27:27,406 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 07:27:27,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 07:27:27,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:27:27,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:27:27,406 INFO L87 Difference]: Start difference. First operand 213 states and 272 transitions. cyclomatic complexity: 61 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:27:27,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:27:27,526 INFO L93 Difference]: Finished difference Result 225 states and 284 transitions. [2024-12-02 07:27:27,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 284 transitions. [2024-12-02 07:27:27,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2024-12-02 07:27:27,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 284 transitions. [2024-12-02 07:27:27,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2024-12-02 07:27:27,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 225 [2024-12-02 07:27:27,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 284 transitions. [2024-12-02 07:27:27,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 07:27:27,532 INFO L218 hiAutomatonCegarLoop]: Abstraction has 225 states and 284 transitions. [2024-12-02 07:27:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 284 transitions. [2024-12-02 07:27:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2024-12-02 07:27:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.2622222222222221) internal successors, (284), 224 states have internal predecessors, (284), 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 07:27:27,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 284 transitions. [2024-12-02 07:27:27,540 INFO L240 hiAutomatonCegarLoop]: Abstraction has 225 states and 284 transitions. [2024-12-02 07:27:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:27:27,541 INFO L425 stractBuchiCegarLoop]: Abstraction has 225 states and 284 transitions. [2024-12-02 07:27:27,541 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 07:27:27,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 284 transitions. [2024-12-02 07:27:27,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 154 [2024-12-02 07:27:27,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:27:27,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:27:27,544 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:27,544 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 07:27:27,544 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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#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~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:27:27,544 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#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~ret9#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~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret9#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~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#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~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#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~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#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~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:27:27,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,544 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-12-02 07:27:27,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601225940] [2024-12-02 07:27:27,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,552 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:27,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,559 INFO L85 PathProgramCache]: Analyzing trace with hash 882462161, now seen corresponding path program 1 times [2024-12-02 07:27:27,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785333507] [2024-12-02 07:27:27,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:27,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 07:27:27,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785333507] [2024-12-02 07:27:27,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785333507] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:27:27,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516487918] [2024-12-02 07:27:27,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:27:27,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:27:27,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:27:27,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:27:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:27:27,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:27:27,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:27:27,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:27:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516487918] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:27:27,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:27:27,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 07:27:27,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996428935] [2024-12-02 07:27:27,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:27:27,723 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 07:27:27,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 07:27:27,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:27:27,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:27:27,724 INFO L87 Difference]: Start difference. First operand 225 states and 284 transitions. cyclomatic complexity: 61 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 07:27:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:27:27,834 INFO L93 Difference]: Finished difference Result 416 states and 514 transitions. [2024-12-02 07:27:27,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 416 states and 514 transitions. [2024-12-02 07:27:27,837 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2024-12-02 07:27:27,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 416 states to 416 states and 514 transitions. [2024-12-02 07:27:27,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 416 [2024-12-02 07:27:27,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 416 [2024-12-02 07:27:27,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 416 states and 514 transitions. [2024-12-02 07:27:27,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 07:27:27,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 416 states and 514 transitions. [2024-12-02 07:27:27,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states and 514 transitions. [2024-12-02 07:27:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-12-02 07:27:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 416 states have (on average 1.2355769230769231) internal successors, (514), 415 states have internal predecessors, (514), 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 07:27:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 514 transitions. [2024-12-02 07:27:27,854 INFO L240 hiAutomatonCegarLoop]: Abstraction has 416 states and 514 transitions. [2024-12-02 07:27:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:27:27,855 INFO L425 stractBuchiCegarLoop]: Abstraction has 416 states and 514 transitions. [2024-12-02 07:27:27,855 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 07:27:27,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 416 states and 514 transitions. [2024-12-02 07:27:27,858 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2024-12-02 07:27:27,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:27:27,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:27:27,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:27:27,859 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 07:27:27,859 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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1;" "assume 0 != main_~tmp~1#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~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:27:27,859 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#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~ret9#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~ret9#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret9#1;havoc __utac_acc__Specification5_spec__2_#t~ret9#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret9#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~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#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~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#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~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#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~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#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~ret10#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret10#1;havoc __utac_acc__Specification5_spec__3_#t~ret10#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#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~ret11#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret11#1;havoc __utac_acc__Specification5_spec__3_#t~ret11#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret10#1, __utac_acc__Specification5_spec__3_#t~ret11#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:27:27,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,859 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2024-12-02 07:27:27,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792304956] [2024-12-02 07:27:27,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,866 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:27,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1916576076, now seen corresponding path program 1 times [2024-12-02 07:27:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142562443] [2024-12-02 07:27:27,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,881 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:27,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:27:27,889 INFO L85 PathProgramCache]: Analyzing trace with hash -49281419, now seen corresponding path program 1 times [2024-12-02 07:27:27,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:27:27,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694998955] [2024-12-02 07:27:27,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:27:27,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:27:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,900 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:27,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:27:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:28,766 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:27:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:27:28,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 07:27:28 BoogieIcfgContainer [2024-12-02 07:27:28,812 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 07:27:28,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:27:28,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:27:28,813 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:27:28,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:27:26" (3/4) ... [2024-12-02 07:27:28,815 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 07:27:28,855 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:27:28,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:27:28,856 INFO L158 Benchmark]: Toolchain (without parser) took 3552.51ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 73.3MB in the end (delta: 44.6MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-12-02 07:27:28,856 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:27:28,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.49ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 99.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:27:28,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.64ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 96.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:27:28,857 INFO L158 Benchmark]: Boogie Preprocessor took 45.30ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 93.7MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:27:28,857 INFO L158 Benchmark]: RCFGBuilder took 508.40ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 68.3MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:27:28,857 INFO L158 Benchmark]: BuchiAutomizer took 2575.77ms. Allocated memory is still 142.6MB. Free memory was 68.3MB in the beginning and 76.1MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:27:28,857 INFO L158 Benchmark]: Witness Printer took 41.97ms. Allocated memory is still 142.6MB. Free memory was 76.1MB in the beginning and 73.3MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:27:28,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.49ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 99.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.64ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 96.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.30ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 93.7MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 508.40ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 68.3MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2575.77ms. Allocated memory is still 142.6MB. Free memory was 68.3MB in the beginning and 76.1MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.97ms. Allocated memory is still 142.6MB. Free memory was 76.1MB in the beginning and 73.3MB in the end (delta: 2.8MB). 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: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [150] - GenericResultAtLocation [Line: 201]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [201] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [304] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [313] - GenericResultAtLocation [Line: 496]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [496] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [561] - GenericResultAtLocation [Line: 596]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [596] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 416 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 509 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 509 mSDsluCounter, 2526 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1720 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 806 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 509]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L153] int switchedOnBeforeTS ; [L202] int cleanupTimeShifts = 4; [L316] int pumpRunning = 0; [L317] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L282] int retValue_acc ; [L283] int tmp ; [L287] FCALL select_helpers() [L288] FCALL select_features() [L289] CALL, EXPR valid_product() [L588] int retValue_acc ; [L591] retValue_acc = 1 [L592] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L289] RET, EXPR valid_product() [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L293] FCALL setup() [L294] CALL runTest() [L272] CALL __utac_acc__Specification5_spec__1() [L158] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L272] RET __utac_acc__Specification5_spec__1() [L273] CALL test() [L498] int splverifierCounter ; [L499] int tmp ; [L500] int tmp___0 ; [L501] int tmp___1 ; [L502] int tmp___2 ; [L505] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L509] COND TRUE splverifierCounter < 4 [L515] tmp = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp)) [L525] tmp___0 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___0)) [L535] tmp___2 = __VERIFIER_nondet_int() [L537] COND TRUE \read(tmp___2) [L550] CALL timeShift() [L324] CALL __utac_acc__Specification5_spec__2() [L167] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] switchedOnBeforeTS = isPumpRunning() [L324] RET __utac_acc__Specification5_spec__2() [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L335] CALL processEnvironment() [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L399] CALL processEnvironment__wrappee__highWaterSensor() [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L360] CALL, EXPR isHighWaterLevel() [L478] int retValue_acc ; [L479] int tmp ; [L480] int tmp___0 ; [L484] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L484] RET, EXPR isHighWaterSensorDry() [L484] tmp = isHighWaterSensorDry() [L486] COND TRUE \read(tmp) [L487] tmp___0 = 0 [L491] retValue_acc = tmp___0 [L492] return (retValue_acc); [L360] RET, EXPR isHighWaterLevel() [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L368] FCALL processEnvironment__wrappee__base() [L399] RET processEnvironment__wrappee__highWaterSensor() [L335] RET processEnvironment() [L341] CALL __utac_acc__Specification5_spec__3() [L173] int tmp ; [L174] int tmp___0 ; [L178] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L178] RET, EXPR getWaterLevel() [L178] tmp = getWaterLevel() [L180] COND TRUE tmp != 2 [L182] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L182] RET, EXPR isPumpRunning() [L182] tmp___0 = isPumpRunning() [L184] COND FALSE !(\read(tmp___0)) [L341] RET __utac_acc__Specification5_spec__3() [L550] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 509]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L153] int switchedOnBeforeTS ; [L202] int cleanupTimeShifts = 4; [L316] int pumpRunning = 0; [L317] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L282] int retValue_acc ; [L283] int tmp ; [L287] FCALL select_helpers() [L288] FCALL select_features() [L289] CALL, EXPR valid_product() [L588] int retValue_acc ; [L591] retValue_acc = 1 [L592] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L289] RET, EXPR valid_product() [L289] tmp = valid_product() [L291] COND TRUE \read(tmp) [L293] FCALL setup() [L294] CALL runTest() [L272] CALL __utac_acc__Specification5_spec__1() [L158] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L272] RET __utac_acc__Specification5_spec__1() [L273] CALL test() [L498] int splverifierCounter ; [L499] int tmp ; [L500] int tmp___0 ; [L501] int tmp___1 ; [L502] int tmp___2 ; [L505] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L509] COND TRUE splverifierCounter < 4 [L515] tmp = __VERIFIER_nondet_int() [L517] COND FALSE !(\read(tmp)) [L525] tmp___0 = __VERIFIER_nondet_int() [L527] COND FALSE !(\read(tmp___0)) [L535] tmp___2 = __VERIFIER_nondet_int() [L537] COND TRUE \read(tmp___2) [L550] CALL timeShift() [L324] CALL __utac_acc__Specification5_spec__2() [L167] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L167] RET, EXPR isPumpRunning() [L167] switchedOnBeforeTS = isPumpRunning() [L324] RET __utac_acc__Specification5_spec__2() [L326] COND FALSE !(\read(pumpRunning)) [L333] COND TRUE \read(systemActive) [L335] CALL processEnvironment() [L381] int tmp ; [L384] COND FALSE !(\read(pumpRunning)) [L399] CALL processEnvironment__wrappee__highWaterSensor() [L355] int tmp ; [L358] COND TRUE ! pumpRunning [L360] CALL, EXPR isHighWaterLevel() [L478] int retValue_acc ; [L479] int tmp ; [L480] int tmp___0 ; [L484] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L484] RET, EXPR isHighWaterSensorDry() [L484] tmp = isHighWaterSensorDry() [L486] COND TRUE \read(tmp) [L487] tmp___0 = 0 [L491] retValue_acc = tmp___0 [L492] return (retValue_acc); [L360] RET, EXPR isHighWaterLevel() [L360] tmp = isHighWaterLevel() [L362] COND FALSE !(\read(tmp)) [L368] FCALL processEnvironment__wrappee__base() [L399] RET processEnvironment__wrappee__highWaterSensor() [L335] RET processEnvironment() [L341] CALL __utac_acc__Specification5_spec__3() [L173] int tmp ; [L174] int tmp___0 ; [L178] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L178] RET, EXPR getWaterLevel() [L178] tmp = getWaterLevel() [L180] COND TRUE tmp != 2 [L182] CALL, EXPR isPumpRunning() [L433] int retValue_acc ; [L436] retValue_acc = pumpRunning [L437] return (retValue_acc); [L182] RET, EXPR isPumpRunning() [L182] tmp___0 = isPumpRunning() [L184] COND FALSE !(\read(tmp___0)) [L341] RET __utac_acc__Specification5_spec__3() [L550] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 07:27:28,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:27:29,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:27:29,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:27:29,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:27:29,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b757c4-98b6-457b-81e9-2165f7e4478a/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)