./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU --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 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:11:35,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:11:35,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:11:35,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:11:35,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:11:35,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:11:35,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:11:35,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:11:35,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:11:35,352 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:11:35,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:11:35,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:11:35,353 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:11:35,353 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:11:35,354 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:11:35,356 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:11:35,357 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:11:35,358 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:11:35,358 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:11:35,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:11:35,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:11:35,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:11:35,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:11:35,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:11:35,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:11:35,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:11:35,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:11:35,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:11:35,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:11:35,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:11:35,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:11:35,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:11:35,364 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:11:35,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:11:35,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:11:35,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:11:35,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:11:35,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:11:35,366 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:11:35,367 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1741a5d4e19b6faba6ff51056891b76c8b4c0acd4f550f71706571820842dcfa [2024-10-31 22:11:35,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:11:35,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:11:35,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:11:35,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:11:35,719 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:11:35,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c Unable to find full path for "g++" [2024-10-31 22:11:38,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:11:38,416 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:11:38,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/sv-benchmarks/c/product-lines/minepump_spec4_product55.cil.c [2024-10-31 22:11:38,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/data/de5e6e8dc/4a5044d73ead4f93b05a0a4a4490fc3b/FLAG178f3c6fa [2024-10-31 22:11:38,725 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/data/de5e6e8dc/4a5044d73ead4f93b05a0a4a4490fc3b [2024-10-31 22:11:38,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:11:38,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:11:38,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:38,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:11:38,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:11:38,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:38" (1/1) ... [2024-10-31 22:11:38,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb96a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:38, skipping insertion in model container [2024-10-31 22:11:38,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:11:38" (1/1) ... [2024-10-31 22:11:38,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:11:39,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:39,138 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:11:39,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-10-31 22:11:39,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-10-31 22:11:39,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [369] [2024-10-31 22:11:39,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [397] [2024-10-31 22:11:39,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2024-10-31 22:11:39,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] [2024-10-31 22:11:39,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [540] [2024-10-31 22:11:39,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [906] [2024-10-31 22:11:39,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:11:39,239 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:11:39,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39 WrapperNode [2024-10-31 22:11:39,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:11:39,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:39,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:11:39,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:11:39,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,348 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 58, calls inlined = 142, statements flattened = 958 [2024-10-31 22:11:39,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:11:39,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:11:39,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:11:39,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:11:39,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,401 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]. [2024-10-31 22:11:39,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:11:39,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:11:39,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:11:39,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:11:39,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (1/1) ... [2024-10-31 22:11:39,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:11:39,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:11:39,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:11:39,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:11:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:11:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:11:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:11:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:11:39,649 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:11:39,652 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:11:40,457 INFO L? ?]: Removed 235 outVars from TransFormulas that were not future-live. [2024-10-31 22:11:40,458 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:11:40,478 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:11:40,478 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:11:40,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:40 BoogieIcfgContainer [2024-10-31 22:11:40,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:11:40,480 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:11:40,480 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:11:40,484 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:11:40,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:11:40,485 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:11:38" (1/3) ... [2024-10-31 22:11:40,486 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6732c9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:11:40, skipping insertion in model container [2024-10-31 22:11:40,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:11:40,486 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:11:39" (2/3) ... [2024-10-31 22:11:40,487 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6732c9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:11:40, skipping insertion in model container [2024-10-31 22:11:40,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:11:40,487 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:40" (3/3) ... [2024-10-31 22:11:40,489 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product55.cil.c [2024-10-31 22:11:40,583 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:11:40,583 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:11:40,584 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:11:40,585 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:11:40,585 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:11:40,585 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:11:40,585 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:11:40,585 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:11:40,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3659420289855073) internal successors, (377), 276 states have internal predecessors, (377), 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) [2024-10-31 22:11:40,641 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-10-31 22:11:40,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:11:40,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:11:40,661 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:40,661 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:40,661 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:11:40,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 277 states, 276 states have (on average 1.3659420289855073) internal successors, (377), 276 states have internal predecessors, (377), 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) [2024-10-31 22:11:40,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2024-10-31 22:11:40,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:11:40,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:11:40,691 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:40,691 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:40,706 INFO L745 eck$LassoCheckResult]: Stem: 158#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 169#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 246#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 85#valid_product_returnLabel#1true main_#t~ret25#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 230#L527true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 63#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 167#L65-2true [2024-10-31 22:11:40,710 INFO L747 eck$LassoCheckResult]: Loop: 167#L65-2true assume !false; 33#L66true assume test_~splverifierCounter~0#1 < 4; 264#L67true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 192#L75true assume !(0 != test_~tmp~0#1); 111#L75-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 36#L85true assume !(0 != test_~tmp___0~0#1); 128#L85-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 224#L95true assume 0 != test_~tmp___2~0#1; 80#L101-2true assume { :begin_inline_timeShift } true; 28#L139true assume !(0 != ~pumpRunning~0); 147#L139-2true assume !(0 != ~systemActive~0); 150#L146-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 193#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 210#L380true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 134#L380-1true havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 194#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 167#L65-2true [2024-10-31 22:11:40,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:40,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-10-31 22:11:40,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:40,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031508621] [2024-10-31 22:11:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:40,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:40,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:40,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash -397644090, now seen corresponding path program 1 times [2024-10-31 22:11:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:40,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369702453] [2024-10-31 22:11:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:40,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:40,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:41,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:41,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:41,004 INFO L85 PathProgramCache]: Analyzing trace with hash 957774986, now seen corresponding path program 1 times [2024-10-31 22:11:41,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:41,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273822253] [2024-10-31 22:11:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:11:41,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:41,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273822253] [2024-10-31 22:11:41,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273822253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:41,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:41,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:11:41,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490962138] [2024-10-31 22:11:41,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:41,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:41,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:11:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:11:41,508 INFO L87 Difference]: Start difference. First operand has 277 states, 276 states have (on average 1.3659420289855073) internal successors, (377), 276 states have internal predecessors, (377), 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 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-10-31 22:11:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:41,715 INFO L93 Difference]: Finished difference Result 599 states and 797 transitions. [2024-10-31 22:11:41,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 599 states and 797 transitions. [2024-10-31 22:11:41,729 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2024-10-31 22:11:41,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 599 states to 569 states and 767 transitions. [2024-10-31 22:11:41,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 569 [2024-10-31 22:11:41,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 569 [2024-10-31 22:11:41,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 767 transitions. [2024-10-31 22:11:41,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:11:41,750 INFO L218 hiAutomatonCegarLoop]: Abstraction has 569 states and 767 transitions. [2024-10-31 22:11:41,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 767 transitions. [2024-10-31 22:11:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 313. [2024-10-31 22:11:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.3450479233226837) internal successors, (421), 312 states have internal predecessors, (421), 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) [2024-10-31 22:11:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 421 transitions. [2024-10-31 22:11:41,812 INFO L240 hiAutomatonCegarLoop]: Abstraction has 313 states and 421 transitions. [2024-10-31 22:11:41,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:11:41,820 INFO L425 stractBuchiCegarLoop]: Abstraction has 313 states and 421 transitions. [2024-10-31 22:11:41,820 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:11:41,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 421 transitions. [2024-10-31 22:11:41,823 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2024-10-31 22:11:41,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:11:41,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:11:41,826 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:41,826 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] [2024-10-31 22:11:41,827 INFO L745 eck$LassoCheckResult]: Stem: 1106#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 940#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 941#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1036#valid_product_returnLabel#1 main_#t~ret25#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 1037#L527 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1000#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 1001#L65-2 [2024-10-31 22:11:41,827 INFO L747 eck$LassoCheckResult]: Loop: 1001#L65-2 assume !false; 953#L66 assume test_~splverifierCounter~0#1 < 4; 954#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1127#L75 assume !(0 != test_~tmp~0#1); 1038#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 959#L85 assume !(0 != test_~tmp___0~0#1); 961#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1088#L95 assume 0 != test_~tmp___2~0#1; 1027#L101-2 assume { :begin_inline_timeShift } true; 942#L139 assume !(0 != ~pumpRunning~0); 943#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 991#L223 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 992#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret11#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret11#1;havoc isMethaneAlarm_#t~ret11#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1153#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret11#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1; 1046#L227 assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 998#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 919#L223-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1091#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1104#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1128#L380 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1078#L380-1 havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1093#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1001#L65-2 [2024-10-31 22:11:41,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:41,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-10-31 22:11:41,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:41,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256966537] [2024-10-31 22:11:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:41,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:41,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:41,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:41,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1505608303, now seen corresponding path program 1 times [2024-10-31 22:11:41,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:41,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286004371] [2024-10-31 22:11:41,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:41,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:11:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:11:41,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:11:41,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286004371] [2024-10-31 22:11:41,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286004371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:11:41,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:11:41,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:11:41,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604078334] [2024-10-31 22:11:41,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:11:41,915 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:11:41,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:11:41,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:11:41,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:11:41,916 INFO L87 Difference]: Start difference. First operand 313 states and 421 transitions. cyclomatic complexity: 111 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) [2024-10-31 22:11:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:11:42,051 INFO L93 Difference]: Finished difference Result 318 states and 403 transitions. [2024-10-31 22:11:42,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 403 transitions. [2024-10-31 22:11:42,054 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2024-10-31 22:11:42,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 403 transitions. [2024-10-31 22:11:42,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2024-10-31 22:11:42,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2024-10-31 22:11:42,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 403 transitions. [2024-10-31 22:11:42,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:11:42,062 INFO L218 hiAutomatonCegarLoop]: Abstraction has 318 states and 403 transitions. [2024-10-31 22:11:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 403 transitions. [2024-10-31 22:11:42,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2024-10-31 22:11:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 1.2672955974842768) internal successors, (403), 317 states have internal predecessors, (403), 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) [2024-10-31 22:11:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 403 transitions. [2024-10-31 22:11:42,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 318 states and 403 transitions. [2024-10-31 22:11:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:11:42,090 INFO L425 stractBuchiCegarLoop]: Abstraction has 318 states and 403 transitions. [2024-10-31 22:11:42,091 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:11:42,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 403 transitions. [2024-10-31 22:11:42,093 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 225 [2024-10-31 22:11:42,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:11:42,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:11:42,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:11:42,094 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] [2024-10-31 22:11:42,095 INFO L745 eck$LassoCheckResult]: Stem: 1708#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1709#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret25#1, main_~retValue_acc~6#1, main_~tmp~7#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1560#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1561#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1638#valid_product_returnLabel#1 main_#t~ret25#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 1639#L527 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1608#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#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; 1609#L65-2 [2024-10-31 22:11:42,095 INFO L747 eck$LassoCheckResult]: Loop: 1609#L65-2 assume !false; 1818#L66 assume test_~splverifierCounter~0#1 < 4; 1819#L67 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1831#L75 assume !(0 != test_~tmp~0#1); 1829#L75-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1827#L85 assume !(0 != test_~tmp___0~0#1); 1825#L85-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1824#L95 assume 0 != test_~tmp___2~0#1; 1822#L101-2 assume { :begin_inline_timeShift } true; 1562#L139 assume !(0 != ~pumpRunning~0); 1563#L139-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1603#L223 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2#1; 1604#L197-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1743#L171-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#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~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 1575#L990-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1576#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1720#L325-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1691#L325-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1692#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1717#L175-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1657#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1533#L171-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1534#L197-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret9#1, processEnvironment__wrappee__lowWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1548#L223-1 havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true; 1686#L146-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1; 1704#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1821#L380 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1689#L380-1 havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1690#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1609#L65-2 [2024-10-31 22:11:42,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-10-31 22:11:42,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:42,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320196678] [2024-10-31 22:11:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:42,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:42,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:42,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:42,158 INFO L85 PathProgramCache]: Analyzing trace with hash -435635529, now seen corresponding path program 1 times [2024-10-31 22:11:42,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:42,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432740362] [2024-10-31 22:11:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:42,184 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:42,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:42,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:11:42,203 INFO L85 PathProgramCache]: Analyzing trace with hash -561370253, now seen corresponding path program 1 times [2024-10-31 22:11:42,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:11:42,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798160050] [2024-10-31 22:11:42,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:11:42,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:11:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:42,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:42,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:11:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:43,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:11:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:11:43,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:11:43 BoogieIcfgContainer [2024-10-31 22:11:43,548 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:11:43,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:11:43,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:11:43,549 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:11:43,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:11:40" (3/4) ... [2024-10-31 22:11:43,551 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:11:43,611 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:11:43,611 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:11:43,612 INFO L158 Benchmark]: Toolchain (without parser) took 4881.26ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 102.8MB in the beginning and 144.9MB in the end (delta: -42.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,613 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:11:43,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.31ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 80.9MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.01ms. Allocated memory is still 144.7MB. Free memory was 80.9MB in the beginning and 76.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,614 INFO L158 Benchmark]: Boogie Preprocessor took 112.94ms. Allocated memory is still 144.7MB. Free memory was 76.7MB in the beginning and 71.4MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,615 INFO L158 Benchmark]: RCFGBuilder took 1014.18ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 71.4MB in the beginning and 151.4MB in the end (delta: -80.0MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,615 INFO L158 Benchmark]: BuchiAutomizer took 3068.05ms. Allocated memory is still 197.1MB. Free memory was 151.4MB in the beginning and 148.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,615 INFO L158 Benchmark]: Witness Printer took 63.25ms. Allocated memory is still 197.1MB. Free memory was 148.0MB in the beginning and 144.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:11:43,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.31ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 80.9MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.01ms. Allocated memory is still 144.7MB. Free memory was 80.9MB in the beginning and 76.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.94ms. Allocated memory is still 144.7MB. Free memory was 76.7MB in the beginning and 71.4MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1014.18ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 71.4MB in the beginning and 151.4MB in the end (delta: -80.0MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3068.05ms. Allocated memory is still 197.1MB. Free memory was 151.4MB in the beginning and 148.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 63.25ms. Allocated memory is still 197.1MB. Free memory was 148.0MB in the beginning and 144.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 369]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [369] - GenericResultAtLocation [Line: 397]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [397] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [444] - GenericResultAtLocation [Line: 540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [540] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [906] * 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 6 locations. The remainder module has 318 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 256 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1221 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1221 mSDsluCounter, 1907 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1264 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 643 mSDtfsCounter, 79 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L445] int cleanupTimeShifts = 4; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L427] int retValue_acc ; [L430] retValue_acc = 1 [L431] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L373] int tmp ; [L374] int tmp___0 ; [L378] CALL, EXPR getWaterLevel() [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp = getWaterLevel() [L380] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L445] int cleanupTimeShifts = 4; [L710] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L907] int waterLevel = 1; [L908] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L427] int retValue_acc ; [L430] retValue_acc = 1 [L431] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L220] int tmp ; [L223] COND FALSE !(\read(pumpRunning)) [L238] CALL processEnvironment__wrappee__lowWaterSensor() [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L212] CALL processEnvironment__wrappee__highWaterSensor() [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L173] CALL, EXPR isHighWaterLevel() [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L323] CALL, EXPR isHighWaterSensorDry() [L987] int retValue_acc ; [L990] COND TRUE waterLevel < 2 [L991] retValue_acc = 1 [L992] return (retValue_acc); [L323] RET, EXPR isHighWaterSensorDry() [L323] tmp = isHighWaterSensorDry() [L325] COND TRUE \read(tmp) [L326] tmp___0 = 0 [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); [L173] RET, EXPR isHighWaterLevel() [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L181] FCALL processEnvironment__wrappee__base() [L212] RET processEnvironment__wrappee__highWaterSensor() [L238] RET processEnvironment__wrappee__lowWaterSensor() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L373] int tmp ; [L374] int tmp___0 ; [L378] CALL, EXPR getWaterLevel() [L978] int retValue_acc ; [L981] retValue_acc = waterLevel [L982] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp = getWaterLevel() [L380] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:11:43,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ee0104-7f03-457b-8bb4-f62b2d5528a6/bin/uautomizer-verify-4GaUIPS5ZU/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)