./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.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_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:22:52,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:22:52,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:22:52,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:22:52,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:22:52,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:22:52,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:22:52,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:22:52,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:22:52,287 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:22:52,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:22:52,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:22:52,288 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:22:52,288 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:22:52,288 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:22:52,289 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:22:52,289 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:22:52,289 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:22:52,289 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:22:52,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:22:52,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:22:52,290 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:22:52,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:22:52,291 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:22:52,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:22:52,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:22:52,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:22:52,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:52,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:22:52,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:22:52,292 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:22:52,293 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_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 [2024-11-27 20:22:52,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:22:52,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:22:52,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:22:52,614 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:22:52,614 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:22:52,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2024-11-27 20:22:55,539 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/data/c8bd26f3b/79aff3e974aa4154a2fcb0567eea7ecd/FLAG507250755 [2024-11-27 20:22:55,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:22:55,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2024-11-27 20:22:55,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/data/c8bd26f3b/79aff3e974aa4154a2fcb0567eea7ecd/FLAG507250755 [2024-11-27 20:22:55,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/data/c8bd26f3b/79aff3e974aa4154a2fcb0567eea7ecd [2024-11-27 20:22:55,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:22:55,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:22:55,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:55,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:22:56,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:22:56,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:56,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df7aa62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56, skipping insertion in model container [2024-11-27 20:22:56,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:55" (1/1) ... [2024-11-27 20:22:56,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:22:56,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:56,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:22:56,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-27 20:22:56,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [135] [2024-11-27 20:22:56,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [173] [2024-11-27 20:22:56,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [243] [2024-11-27 20:22:56,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [393] [2024-11-27 20:22:56,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [491] [2024-11-27 20:22:56,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [541] [2024-11-27 20:22:56,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] [2024-11-27 20:22:56,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:56,600 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:22:56,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56 WrapperNode [2024-11-27 20:22:56,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:56,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:56,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:22:56,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:22:56,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,682 INFO L138 Inliner]: procedures = 53, calls = 97, calls flagged for inlining = 50, calls inlined = 58, statements flattened = 350 [2024-11-27 20:22:56,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:56,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:22:56,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:22:56,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:22:56,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,696 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,709 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:22:56,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:22:56,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:22:56,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:22:56,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:22:56,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (1/1) ... [2024-11-27 20:22:56,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:22:56,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:56,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:22:56,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:22:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:22:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:22:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:22:56,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:22:56,898 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:22:56,901 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:22:57,404 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-27 20:22:57,404 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:22:57,416 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:22:57,416 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 20:22:57,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:57 BoogieIcfgContainer [2024-11-27 20:22:57,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:22:57,418 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:22:57,418 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:22:57,424 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:22:57,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:22:57,425 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:22:55" (1/3) ... [2024-11-27 20:22:57,426 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d291f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:22:57, skipping insertion in model container [2024-11-27 20:22:57,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:22:57,427 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:56" (2/3) ... [2024-11-27 20:22:57,427 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d291f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:22:57, skipping insertion in model container [2024-11-27 20:22:57,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:22:57,427 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:57" (3/3) ... [2024-11-27 20:22:57,428 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2024-11-27 20:22:57,480 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:22:57,481 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:22:57,481 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:22:57,481 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:22:57,481 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:22:57,481 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:22:57,482 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:22:57,482 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:22:57,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 107 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:57,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-11-27 20:22:57,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:22:57,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:22:57,514 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:57,514 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:57,515 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:22:57,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 107 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:57,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-11-27 20:22:57,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:22:57,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:22:57,521 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:57,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:57,526 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~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~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#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~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1;" "assume 0 != main_~tmp~2#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~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:22:57,527 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#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~ret25#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret25#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~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#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~ret26#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:22:57,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:57,533 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-27 20:22:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:57,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116911501] [2024-11-27 20:22:57,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:57,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:57,654 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:22:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:57,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:22:57,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:57,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1733508457, now seen corresponding path program 1 times [2024-11-27 20:22:57,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:57,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908957156] [2024-11-27 20:22:57,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:57,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:22:57,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908957156] [2024-11-27 20:22:57,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908957156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607428560] [2024-11-27 20:22:57,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:57,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:57,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:57,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:57,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:22:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:57,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:22:57,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:58,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:58,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607428560] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:58,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:58,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:22:58,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260143610] [2024-11-27 20:22:58,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:58,081 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:22:58,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:22:58,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:22:58,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:22:58,115 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 107 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:58,156 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2024-11-27 20:22:58,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 128 transitions. [2024-11-27 20:22:58,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2024-11-27 20:22:58,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 92 states and 117 transitions. [2024-11-27 20:22:58,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2024-11-27 20:22:58,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2024-11-27 20:22:58,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 117 transitions. [2024-11-27 20:22:58,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:22:58,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 117 transitions. [2024-11-27 20:22:58,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 117 transitions. [2024-11-27 20:22:58,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-27 20:22:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.2717391304347827) internal successors, (117), 91 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 117 transitions. [2024-11-27 20:22:58,219 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 117 transitions. [2024-11-27 20:22:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:22:58,225 INFO L425 stractBuchiCegarLoop]: Abstraction has 92 states and 117 transitions. [2024-11-27 20:22:58,225 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:22:58,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 117 transitions. [2024-11-27 20:22:58,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2024-11-27 20:22:58,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:22:58,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:22:58,228 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:58,228 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:58,228 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~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~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#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~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1;" "assume 0 != main_~tmp~2#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~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:22:58,228 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet13#1;test_~tmp___1~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#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~ret25#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret25#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~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#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~ret26#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:22:58,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-27 20:22:58,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:58,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395466161] [2024-11-27 20:22:58,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:58,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:58,245 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:22:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:58,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:22:58,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:58,259 INFO L85 PathProgramCache]: Analyzing trace with hash -126029147, now seen corresponding path program 1 times [2024-11-27 20:22:58,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:58,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528748403] [2024-11-27 20:22:58,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:58,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:58,269 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:22:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:58,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:22:58,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -527406244, now seen corresponding path program 1 times [2024-11-27 20:22:58,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:58,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818990890] [2024-11-27 20:22:58,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:58,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:58,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:22:58,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818990890] [2024-11-27 20:22:58,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818990890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:58,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039511178] [2024-11-27 20:22:58,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:58,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:58,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:58,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:58,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:22:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:58,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:22:58,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:58,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:58,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039511178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:58,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:58,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 20:22:58,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275372057] [2024-11-27 20:22:58,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:22:59,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:22:59,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:22:59,029 INFO L87 Difference]: Start difference. First operand 92 states and 117 transitions. cyclomatic complexity: 27 Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:59,200 INFO L93 Difference]: Finished difference Result 175 states and 221 transitions. [2024-11-27 20:22:59,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 175 states and 221 transitions. [2024-11-27 20:22:59,203 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 121 [2024-11-27 20:22:59,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 175 states to 175 states and 221 transitions. [2024-11-27 20:22:59,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2024-11-27 20:22:59,205 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2024-11-27 20:22:59,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 221 transitions. [2024-11-27 20:22:59,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:22:59,206 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 221 transitions. [2024-11-27 20:22:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 221 transitions. [2024-11-27 20:22:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-27 20:22:59,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.262857142857143) internal successors, (221), 174 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 221 transitions. [2024-11-27 20:22:59,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 221 transitions. [2024-11-27 20:22:59,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:22:59,262 INFO L425 stractBuchiCegarLoop]: Abstraction has 175 states and 221 transitions. [2024-11-27 20:22:59,262 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:22:59,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 221 transitions. [2024-11-27 20:22:59,264 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 121 [2024-11-27 20:22:59,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:22:59,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:22:59,265 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:59,266 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] [2024-11-27 20:22:59,266 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~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~ret24#1, main_~retValue_acc~6#1, main_~tmp~2#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~2#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~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1;" "main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret24#1;havoc main_#t~ret24#1;" "assume 0 != main_~tmp~2#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~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 20:22:59,266 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet10#1;test_~tmp~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet11#1;test_~tmp___0~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet12#1;test_~tmp___2~0#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret25#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~ret25#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret25#1;havoc __utac_acc__Specification5_spec__2_#t~ret25#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret25#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~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~3#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#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~ret26#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret26#1;havoc __utac_acc__Specification5_spec__3_#t~ret26#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#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~ret27#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret27#1;havoc __utac_acc__Specification5_spec__3_#t~ret27#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret26#1, __utac_acc__Specification5_spec__3_#t~ret27#1, __utac_acc__Specification5_spec__3_~tmp~3#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 20:22:59,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-27 20:22:59,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:59,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492498345] [2024-11-27 20:22:59,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:59,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:59,287 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:22:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:59,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:22:59,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:59,297 INFO L85 PathProgramCache]: Analyzing trace with hash 558467969, now seen corresponding path program 1 times [2024-11-27 20:22:59,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:59,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361277154] [2024-11-27 20:22:59,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:59,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:59,305 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:22:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:59,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:22:59,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:59,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1382134392, now seen corresponding path program 1 times [2024-11-27 20:22:59,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:22:59,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944017574] [2024-11-27 20:22:59,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:59,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:59,331 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:22:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:22:59,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:23:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:23:00,560 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:23:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:23:00,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:23:00 BoogieIcfgContainer [2024-11-27 20:23:00,641 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:23:00,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:23:00,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:23:00,642 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:23:00,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:57" (3/4) ... [2024-11-27 20:23:00,645 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:23:00,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:23:00,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:23:00,709 INFO L158 Benchmark]: Toolchain (without parser) took 4717.49ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 70.0MB in the end (delta: 21.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-11-27 20:23:00,710 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:23:00,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.25ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:23:00,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.72ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 71.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:23:00,711 INFO L158 Benchmark]: Boogie Preprocessor took 45.86ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.3MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:23:00,712 INFO L158 Benchmark]: RCFGBuilder took 687.63ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 51.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:23:00,712 INFO L158 Benchmark]: BuchiAutomizer took 3222.87ms. Allocated memory is still 117.4MB. Free memory was 51.0MB in the beginning and 73.2MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:23:00,713 INFO L158 Benchmark]: Witness Printer took 66.87ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.0MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:23:00,715 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.25ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.9MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.72ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 71.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.86ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.3MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 687.63ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 51.0MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3222.87ms. Allocated memory is still 117.4MB. Free memory was 51.0MB in the beginning and 73.2MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.87ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.0MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. 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: 135]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [135] - GenericResultAtLocation [Line: 173]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [173] - GenericResultAtLocation [Line: 243]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [243] - GenericResultAtLocation [Line: 393]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [393] - GenericResultAtLocation [Line: 491]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [491] - GenericResultAtLocation [Line: 541]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [541] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 175 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 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, 289 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 289 mSDsluCounter, 621 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 228 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 189]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L248] int pumpRunning = 0; [L249] int systemActive = 1; [L394] int cleanupTimeShifts = 4; [L493] int switchedOnBeforeTS ; [L711] 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] [L469] int retValue_acc ; [L470] int tmp ; [L474] FCALL select_helpers() [L475] FCALL select_features() [L476] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L476] RET, EXPR valid_product() [L476] tmp = valid_product() [L478] COND TRUE \read(tmp) [L480] FCALL setup() [L481] CALL runTest() [L462] CALL __utac_acc__Specification5_spec__1() [L498] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L462] RET __utac_acc__Specification5_spec__1() [L463] CALL test() [L178] int splverifierCounter ; [L179] int tmp ; [L180] int tmp___0 ; [L181] int tmp___1 ; [L182] int tmp___2 ; [L185] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L189] COND TRUE splverifierCounter < 4 [L195] tmp = __VERIFIER_nondet_int() [L197] COND FALSE !(\read(tmp)) [L205] tmp___0 = __VERIFIER_nondet_int() [L207] COND FALSE !(\read(tmp___0)) [L215] tmp___2 = __VERIFIER_nondet_int() [L217] COND TRUE \read(tmp___2) [L219] CALL startSystem() [L389] systemActive = 1 [L219] RET startSystem() [L232] CALL timeShift() [L258] CALL __utac_acc__Specification5_spec__2() [L507] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L507] RET, EXPR isPumpRunning() [L507] switchedOnBeforeTS = isPumpRunning() [L258] RET __utac_acc__Specification5_spec__2() [L260] COND FALSE !(\read(pumpRunning)) [L267] COND TRUE \read(systemActive) [L269] CALL processEnvironment() [L289] int tmp ; [L292] COND FALSE !(\read(pumpRunning)) [L307] FCALL processEnvironment__wrappee__base() [L269] RET processEnvironment() [L275] CALL __utac_acc__Specification5_spec__3() [L513] int tmp ; [L514] int tmp___0 ; [L518] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L518] RET, EXPR getWaterLevel() [L518] tmp = getWaterLevel() [L520] COND TRUE tmp != 2 [L522] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L522] RET, EXPR isPumpRunning() [L522] tmp___0 = isPumpRunning() [L524] COND FALSE !(\read(tmp___0)) [L275] RET __utac_acc__Specification5_spec__3() [L232] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 189]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L248] int pumpRunning = 0; [L249] int systemActive = 1; [L394] int cleanupTimeShifts = 4; [L493] int switchedOnBeforeTS ; [L711] 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] [L469] int retValue_acc ; [L470] int tmp ; [L474] FCALL select_helpers() [L475] FCALL select_features() [L476] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L476] RET, EXPR valid_product() [L476] tmp = valid_product() [L478] COND TRUE \read(tmp) [L480] FCALL setup() [L481] CALL runTest() [L462] CALL __utac_acc__Specification5_spec__1() [L498] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L462] RET __utac_acc__Specification5_spec__1() [L463] CALL test() [L178] int splverifierCounter ; [L179] int tmp ; [L180] int tmp___0 ; [L181] int tmp___1 ; [L182] int tmp___2 ; [L185] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L189] COND TRUE splverifierCounter < 4 [L195] tmp = __VERIFIER_nondet_int() [L197] COND FALSE !(\read(tmp)) [L205] tmp___0 = __VERIFIER_nondet_int() [L207] COND FALSE !(\read(tmp___0)) [L215] tmp___2 = __VERIFIER_nondet_int() [L217] COND TRUE \read(tmp___2) [L219] CALL startSystem() [L389] systemActive = 1 [L219] RET startSystem() [L232] CALL timeShift() [L258] CALL __utac_acc__Specification5_spec__2() [L507] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L507] RET, EXPR isPumpRunning() [L507] switchedOnBeforeTS = isPumpRunning() [L258] RET __utac_acc__Specification5_spec__2() [L260] COND FALSE !(\read(pumpRunning)) [L267] COND TRUE \read(systemActive) [L269] CALL processEnvironment() [L289] int tmp ; [L292] COND FALSE !(\read(pumpRunning)) [L307] FCALL processEnvironment__wrappee__base() [L269] RET processEnvironment() [L275] CALL __utac_acc__Specification5_spec__3() [L513] int tmp ; [L514] int tmp___0 ; [L518] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L518] RET, EXPR getWaterLevel() [L518] tmp = getWaterLevel() [L520] COND TRUE tmp != 2 [L522] CALL, EXPR isPumpRunning() [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L522] RET, EXPR isPumpRunning() [L522] tmp___0 = isPumpRunning() [L524] COND FALSE !(\read(tmp___0)) [L275] RET __utac_acc__Specification5_spec__3() [L232] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 20:23:00,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:23:00,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:23:01,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91002b4-5051-40ce-b187-03ab6e36374c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)