./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya --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 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:11:37,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:11:37,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 00:11:37,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:11:37,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:11:37,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:11:37,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:11:37,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:11:37,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:11:37,201 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:11:37,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:11:37,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:11:37,202 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:11:37,203 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 00:11:37,204 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 00:11:37,204 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 00:11:37,205 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 00:11:37,205 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 00:11:37,206 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 00:11:37,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:11:37,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 00:11:37,207 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:11:37,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:11:37,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:11:37,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:11:37,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 00:11:37,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 00:11:37,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 00:11:37,210 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:11:37,211 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:11:37,211 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:11:37,212 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 00:11:37,212 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:11:37,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:11:37,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:11:37,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:11:37,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:11:37,214 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 00:11:37,214 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_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 [2023-11-29 00:11:37,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:11:37,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:11:37,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:11:37,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:11:37,451 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:11:37,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2023-11-29 00:11:40,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:11:40,444 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:11:40,445 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2023-11-29 00:11:40,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/data/6128773c2/2f99fa513757413ebd3abdb4ca7d39dc/FLAGf76705c86 [2023-11-29 00:11:40,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/data/6128773c2/2f99fa513757413ebd3abdb4ca7d39dc [2023-11-29 00:11:40,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:11:40,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:11:40,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:11:40,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:11:40,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:11:40,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1199dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40, skipping insertion in model container [2023-11-29 00:11:40,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,529 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:11:40,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:11:40,783 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:11:40,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-29 00:11:40,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2023-11-29 00:11:40,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [288] [2023-11-29 00:11:40,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [339] [2023-11-29 00:11:40,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [409] [2023-11-29 00:11:40,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [506] [2023-11-29 00:11:40,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [872] [2023-11-29 00:11:40,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [961] [2023-11-29 00:11:40,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:11:40,870 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:11:40,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40 WrapperNode [2023-11-29 00:11:40,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:11:40,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:11:40,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:11:40,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:11:40,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,931 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 55, calls inlined = 88, statements flattened = 550 [2023-11-29 00:11:40,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:11:40,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:11:40,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:11:40,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:11:40,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,971 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]. [2023-11-29 00:11:40,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:40,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:11:41,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:11:41,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:11:41,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:11:41,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (1/1) ... [2023-11-29 00:11:41,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 00:11:41,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:11:41,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 00:11:41,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 00:11:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:11:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:11:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:11:41,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:11:41,148 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:11:41,150 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:11:41,531 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:11:41,545 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:11:41,546 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 00:11:41,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:41 BoogieIcfgContainer [2023-11-29 00:11:41,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:11:41,549 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 00:11:41,549 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 00:11:41,553 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 00:11:41,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:11:41,554 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 12:11:40" (1/3) ... [2023-11-29 00:11:41,555 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fdaef57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:11:41, skipping insertion in model container [2023-11-29 00:11:41,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:11:41,555 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:11:40" (2/3) ... [2023-11-29 00:11:41,556 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fdaef57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 12:11:41, skipping insertion in model container [2023-11-29 00:11:41,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 00:11:41,556 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:41" (3/3) ... [2023-11-29 00:11:41,557 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2023-11-29 00:11:41,614 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 00:11:41,614 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 00:11:41,615 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 00:11:41,615 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 00:11:41,615 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 00:11:41,615 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 00:11:41,615 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 00:11:41,615 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 00:11:41,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 163 states have internal predecessors, (218), 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) [2023-11-29 00:11:41,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2023-11-29 00:11:41,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:11:41,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:11:41,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:11:41,655 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] [2023-11-29 00:11:41,656 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 00:11:41,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 163 states have internal predecessors, (218), 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) [2023-11-29 00:11:41,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2023-11-29 00:11:41,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:11:41,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:11:41,666 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:11:41,667 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] [2023-11-29 00:11:41,672 INFO L748 eck$LassoCheckResult]: Stem: 32#$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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 29#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 135#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 110#valid_product_returnLabel#1true main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 22#L493true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 149#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 132#L353-2true [2023-11-29 00:11:41,673 INFO L750 eck$LassoCheckResult]: Loop: 132#L353-2true assume !false; 61#L354true assume test_~splverifierCounter~0#1 < 4; 37#L355true havoc test_#t~nondet20#1;test_~tmp~4#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 165#L363true assume !(0 != test_~tmp~4#1); 101#L363-2true havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 148#L373true assume !(0 != test_~tmp___0~2#1); 115#L373-2true havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 54#L383true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 57#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 6#L391-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 145#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret17#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17#1;havoc __utac_acc__Specification5_spec__2_#t~ret17#1; 100#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 84#L110true assume !(0 != ~pumpRunning~0); 44#L110-2true assume !(0 != ~systemActive~0); 122#L117-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#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~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 69#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret18#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret18#1;havoc __utac_acc__Specification5_spec__3_#t~ret18#1; 155#L318true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 75#L318-1true havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#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; 70#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 132#L353-2true [2023-11-29 00:11:41,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-29 00:11:41,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:41,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150655633] [2023-11-29 00:11:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:41,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:41,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:41,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:11:41,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:41,814 INFO L85 PathProgramCache]: Analyzing trace with hash 710199629, now seen corresponding path program 1 times [2023-11-29 00:11:41,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:41,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608385992] [2023-11-29 00:11:41,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:41,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:11:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:11:41,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:11:41,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608385992] [2023-11-29 00:11:41,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608385992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:11:41,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:11:41,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:11:41,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069146480] [2023-11-29 00:11:41,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:11:41,905 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 00:11:41,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:11:41,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:11:41,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:11:41,934 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.3374233128834356) internal successors, (218), 163 states have internal predecessors, (218), 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 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-29 00:11:41,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:11:41,969 INFO L93 Difference]: Finished difference Result 158 states and 202 transitions. [2023-11-29 00:11:41,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 202 transitions. [2023-11-29 00:11:41,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2023-11-29 00:11:41,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 148 states and 191 transitions. [2023-11-29 00:11:41,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2023-11-29 00:11:41,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2023-11-29 00:11:41,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 191 transitions. [2023-11-29 00:11:41,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:11:41,985 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 191 transitions. [2023-11-29 00:11:42,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 191 transitions. [2023-11-29 00:11:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-29 00:11:42,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.2905405405405406) internal successors, (191), 147 states have internal predecessors, (191), 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) [2023-11-29 00:11:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 191 transitions. [2023-11-29 00:11:42,021 INFO L240 hiAutomatonCegarLoop]: Abstraction has 148 states and 191 transitions. [2023-11-29 00:11:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:11:42,026 INFO L428 stractBuchiCegarLoop]: Abstraction has 148 states and 191 transitions. [2023-11-29 00:11:42,026 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 00:11:42,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 191 transitions. [2023-11-29 00:11:42,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2023-11-29 00:11:42,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:11:42,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:11:42,030 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:11:42,031 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] [2023-11-29 00:11:42,031 INFO L748 eck$LassoCheckResult]: Stem: 383#$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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 384#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 379#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 380#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 459#valid_product_returnLabel#1 main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 366#L493 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 367#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 436#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 426#L353-2 [2023-11-29 00:11:42,031 INFO L750 eck$LassoCheckResult]: Loop: 426#L353-2 assume !false; 417#L354 assume test_~splverifierCounter~0#1 < 4; 389#L355 havoc test_#t~nondet20#1;test_~tmp~4#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 390#L363 assume !(0 != test_~tmp~4#1); 451#L363-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 452#L373 assume !(0 != test_~tmp___0~2#1); 463#L373-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 408#L383 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 409#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 333#L391-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 334#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret17#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17#1;havoc __utac_acc__Specification5_spec__2_#t~ret17#1; 450#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 434#L110 assume !(0 != ~pumpRunning~0); 399#L110-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 343#L168 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 344#L142-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 331#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 332#L142-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 445#L168-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 465#L117-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#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~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 423#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret18#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret18#1;havoc __utac_acc__Specification5_spec__3_#t~ret18#1; 424#L318 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3#1); 340#L318-1 havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#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; 425#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 426#L353-2 [2023-11-29 00:11:42,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-29 00:11:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923629903] [2023-11-29 00:11:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:42,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:11:42,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:42,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1776284499, now seen corresponding path program 1 times [2023-11-29 00:11:42,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:42,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893485130] [2023-11-29 00:11:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:42,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:11:42,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2012429162, now seen corresponding path program 1 times [2023-11-29 00:11:42,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:42,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685874283] [2023-11-29 00:11:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:42,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:11:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:11:42,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:11:42,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685874283] [2023-11-29 00:11:42,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685874283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:11:42,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:11:42,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:11:42,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514367780] [2023-11-29 00:11:42,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:11:42,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:11:42,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:11:42,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:11:42,410 INFO L87 Difference]: Start difference. First operand 148 states and 191 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-29 00:11:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:11:42,602 INFO L93 Difference]: Finished difference Result 503 states and 651 transitions. [2023-11-29 00:11:42,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 503 states and 651 transitions. [2023-11-29 00:11:42,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 330 [2023-11-29 00:11:42,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 503 states to 503 states and 651 transitions. [2023-11-29 00:11:42,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 503 [2023-11-29 00:11:42,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 503 [2023-11-29 00:11:42,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 503 states and 651 transitions. [2023-11-29 00:11:42,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:11:42,619 INFO L218 hiAutomatonCegarLoop]: Abstraction has 503 states and 651 transitions. [2023-11-29 00:11:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states and 651 transitions. [2023-11-29 00:11:42,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 285. [2023-11-29 00:11:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.280701754385965) internal successors, (365), 284 states have internal predecessors, (365), 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) [2023-11-29 00:11:42,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 365 transitions. [2023-11-29 00:11:42,642 INFO L240 hiAutomatonCegarLoop]: Abstraction has 285 states and 365 transitions. [2023-11-29 00:11:42,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:11:42,643 INFO L428 stractBuchiCegarLoop]: Abstraction has 285 states and 365 transitions. [2023-11-29 00:11:42,643 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 00:11:42,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 365 transitions. [2023-11-29 00:11:42,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2023-11-29 00:11:42,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 00:11:42,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 00:11:42,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:11:42,647 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] [2023-11-29 00:11:42,647 INFO L748 eck$LassoCheckResult]: Stem: 1048#$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;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1049#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret24#1, main_~retValue_acc~5#1, main_~tmp~5#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1044#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1045#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1132#valid_product_returnLabel#1 main_#t~ret24#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret24#1;havoc main_#t~ret24#1; 1031#L493 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1032#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1104#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1091#L353-2 [2023-11-29 00:11:42,647 INFO L750 eck$LassoCheckResult]: Loop: 1091#L353-2 assume !false; 1082#L354 assume test_~splverifierCounter~0#1 < 4; 1054#L355 havoc test_#t~nondet20#1;test_~tmp~4#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1055#L363 assume !(0 != test_~tmp~4#1); 1243#L363-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1241#L373 assume !(0 != test_~tmp___0~2#1); 1239#L373-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1238#L383 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1236#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1234#L391-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 1232#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret17#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret17#1;havoc __utac_acc__Specification5_spec__2_#t~ret17#1; 1230#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret17#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1228#L110 assume !(0 != ~pumpRunning~0); 1227#L110-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1224#L168 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 1225#L142-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1223#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 1199#L142-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret5#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1198#L168-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1197#L117-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#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~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1088#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret18#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~3#1 := __utac_acc__Specification5_spec__3_#t~ret18#1;havoc __utac_acc__Specification5_spec__3_#t~ret18#1; 1089#L318 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 1092#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret19#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret19#1;havoc __utac_acc__Specification5_spec__3_#t~ret19#1; 1093#L322 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 1195#L318-1 havoc __utac_acc__Specification5_spec__3_#t~ret18#1, __utac_acc__Specification5_spec__3_#t~ret19#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; 1090#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1091#L353-2 [2023-11-29 00:11:42,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2023-11-29 00:11:42,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:42,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016633706] [2023-11-29 00:11:42,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:42,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:11:42,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:42,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1928390552, now seen corresponding path program 1 times [2023-11-29 00:11:42,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:42,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491103768] [2023-11-29 00:11:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:42,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:11:42,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:11:42,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1230145007, now seen corresponding path program 1 times [2023-11-29 00:11:42,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:11:42,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134298476] [2023-11-29 00:11:42,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:11:42,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:11:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:42,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:11:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:43,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:11:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:11:43,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 12:11:43 BoogieIcfgContainer [2023-11-29 00:11:43,815 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 00:11:43,816 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:11:43,816 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:11:43,816 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:11:43,817 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:11:41" (3/4) ... [2023-11-29 00:11:43,818 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 00:11:43,875 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:11:43,875 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:11:43,876 INFO L158 Benchmark]: Toolchain (without parser) took 3398.17ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 119.4MB in the beginning and 160.9MB in the end (delta: -41.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,876 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:11:43,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.60ms. Allocated memory is still 153.1MB. Free memory was 119.4MB in the beginning and 100.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.69ms. Allocated memory is still 153.1MB. Free memory was 99.9MB in the beginning and 96.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,877 INFO L158 Benchmark]: Boogie Preprocessor took 67.01ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 93.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,878 INFO L158 Benchmark]: RCFGBuilder took 547.83ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 93.6MB in the beginning and 166.9MB in the end (delta: -73.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,878 INFO L158 Benchmark]: BuchiAutomizer took 2266.41ms. Allocated memory is still 199.2MB. Free memory was 166.9MB in the beginning and 164.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,879 INFO L158 Benchmark]: Witness Printer took 59.27ms. Allocated memory is still 199.2MB. Free memory was 164.0MB in the beginning and 160.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:11:43,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.60ms. Allocated memory is still 153.1MB. Free memory was 119.4MB in the beginning and 100.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.69ms. Allocated memory is still 153.1MB. Free memory was 99.9MB in the beginning and 96.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.01ms. Allocated memory is still 153.1MB. Free memory was 96.9MB in the beginning and 93.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 547.83ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 93.6MB in the beginning and 166.9MB in the end (delta: -73.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2266.41ms. Allocated memory is still 199.2MB. Free memory was 166.9MB in the beginning and 164.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 59.27ms. Allocated memory is still 199.2MB. Free memory was 164.0MB in the beginning and 160.9MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [288] - GenericResultAtLocation [Line: 339]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [339] - GenericResultAtLocation [Line: 409]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [409] - GenericResultAtLocation [Line: 506]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [506] - GenericResultAtLocation [Line: 872]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [872] - GenericResultAtLocation [Line: 961]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [961] * 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 5 locations. The remainder module has 285 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 218 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, 710 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 710 mSDsluCounter, 1340 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 808 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 532 mSDtfsCounter, 129 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: 353]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L291] int switchedOnBeforeTS ; [L410] int cleanupTimeShifts = 4; [L676] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L873] int waterLevel = 1; [L874] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L484] int retValue_acc ; [L485] int tmp ; [L489] FCALL select_helpers() [L490] FCALL select_features() [L491] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L491] RET, EXPR valid_product() [L491] tmp = valid_product() [L493] COND TRUE \read(tmp) [L495] FCALL setup() [L496] CALL runTest() [L477] CALL __utac_acc__Specification5_spec__1() [L296] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L477] RET __utac_acc__Specification5_spec__1() [L478] CALL test() [L344] int splverifierCounter ; [L345] int tmp ; [L346] int tmp___0 ; [L347] int tmp___1 ; [L348] int tmp___2 ; [L351] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L353] COND TRUE 1 [L355] COND TRUE splverifierCounter < 4 [L361] tmp = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp)) [L371] tmp___0 = __VERIFIER_nondet_int() [L373] COND FALSE !(\read(tmp___0)) [L381] tmp___2 = __VERIFIER_nondet_int() [L383] COND TRUE \read(tmp___2) [L385] CALL startSystem() [L284] systemActive = 1 [L385] RET startSystem() [L398] CALL timeShift() [L108] CALL __utac_acc__Specification5_spec__2() [L305] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L305] RET, EXPR isPumpRunning() [L305] switchedOnBeforeTS = isPumpRunning() [L108] RET __utac_acc__Specification5_spec__2() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L119] CALL processEnvironment() [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L183] CALL processEnvironment__wrappee__lowWaterSensor() [L139] int tmp ; [L142] COND FALSE !(\read(pumpRunning)) [L157] FCALL processEnvironment__wrappee__base() [L183] RET processEnvironment__wrappee__lowWaterSensor() [L119] RET processEnvironment() [L125] CALL __utac_acc__Specification5_spec__3() [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR getWaterLevel() [L944] int retValue_acc ; [L947] retValue_acc = waterLevel [L948] return (retValue_acc); [L316] RET, EXPR getWaterLevel() [L316] tmp = getWaterLevel() [L318] COND TRUE tmp != 2 [L320] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L320] RET, EXPR isPumpRunning() [L320] tmp___0 = isPumpRunning() [L322] COND FALSE !(\read(tmp___0)) [L125] RET __utac_acc__Specification5_spec__3() [L398] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 353]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L291] int switchedOnBeforeTS ; [L410] int cleanupTimeShifts = 4; [L676] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L873] int waterLevel = 1; [L874] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L484] int retValue_acc ; [L485] int tmp ; [L489] FCALL select_helpers() [L490] FCALL select_features() [L491] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L491] RET, EXPR valid_product() [L491] tmp = valid_product() [L493] COND TRUE \read(tmp) [L495] FCALL setup() [L496] CALL runTest() [L477] CALL __utac_acc__Specification5_spec__1() [L296] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L477] RET __utac_acc__Specification5_spec__1() [L478] CALL test() [L344] int splverifierCounter ; [L345] int tmp ; [L346] int tmp___0 ; [L347] int tmp___1 ; [L348] int tmp___2 ; [L351] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L353] COND TRUE 1 [L355] COND TRUE splverifierCounter < 4 [L361] tmp = __VERIFIER_nondet_int() [L363] COND FALSE !(\read(tmp)) [L371] tmp___0 = __VERIFIER_nondet_int() [L373] COND FALSE !(\read(tmp___0)) [L381] tmp___2 = __VERIFIER_nondet_int() [L383] COND TRUE \read(tmp___2) [L385] CALL startSystem() [L284] systemActive = 1 [L385] RET startSystem() [L398] CALL timeShift() [L108] CALL __utac_acc__Specification5_spec__2() [L305] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L305] RET, EXPR isPumpRunning() [L305] switchedOnBeforeTS = isPumpRunning() [L108] RET __utac_acc__Specification5_spec__2() [L110] COND FALSE !(\read(pumpRunning)) [L117] COND TRUE \read(systemActive) [L119] CALL processEnvironment() [L165] int tmp ; [L168] COND FALSE !(\read(pumpRunning)) [L183] CALL processEnvironment__wrappee__lowWaterSensor() [L139] int tmp ; [L142] COND FALSE !(\read(pumpRunning)) [L157] FCALL processEnvironment__wrappee__base() [L183] RET processEnvironment__wrappee__lowWaterSensor() [L119] RET processEnvironment() [L125] CALL __utac_acc__Specification5_spec__3() [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR getWaterLevel() [L944] int retValue_acc ; [L947] retValue_acc = waterLevel [L948] return (retValue_acc); [L316] RET, EXPR getWaterLevel() [L316] tmp = getWaterLevel() [L318] COND TRUE tmp != 2 [L320] CALL, EXPR isPumpRunning() [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L320] RET, EXPR isPumpRunning() [L320] tmp___0 = isPumpRunning() [L322] COND FALSE !(\read(tmp___0)) [L125] RET __utac_acc__Specification5_spec__3() [L398] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 00:11:43,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6581c6-f39b-4114-8768-6f5ac455c4df/bin/uautomizer-verify-BQ2R08f2Ya/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)